BTS Statistics Release: January 2017 U.S. Airline Traffic Data

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BTS 19-17

Thursday, April 20, 2017

Contact: Dave Smallen

Tel: 202-366-5568

david.smallen@dot.gov

 

BTS Statistics Release: January 2017 U.S. Airline Traffic Data

 

The U.S. Department of Transportation’s Bureau of Transportation Statistics (BTS) reported today that U.S. airlines’ systemwide (domestic and international) scheduled service load factor – a measure of the use of airline capacity – fell to 83.3 percent in January, seasonally adjusted, falling for the second consecutive month (Table 1).

 

Fig1a

 

The seasonally-adjusted load factor declined from December (83.5) to January (83.3) because system capacity grew faster (0.6 percent increase in Available Seat-Miles (ASMs)) than the growth in passenger travel (0.3 percent increase in Revenue Passenger-Miles (RPMs)) (Tables 4, 7).

 

Load factor is a measure of the use of aircraft capacity that compares the system use, measured in RPMs as a proportion of system capacity, measured in ASMs.

Without adjusting for seasonal variability, systemwide passenger enplanements (62.5 million) reached an all-time January high, up 2.7 percent from the previous high (60.8 million) reached in 2016 (Table 22).

 

Trends:

 

Seasonally-adjusted

 

Systemwide load factor (83.3) was down 1.3 points from the all-time seasonally-adjusted high (84.6) reached in October 2015 (Table 1). Domestic load factor (84.3) was down 1.4 points from the all-time seasonally-adjusted high (85.7) reached in October 2015 (Table 2). International load factor (80.7) was down 2.5 points from the all-time seasonally-adjusted high (83.3) reached in March 2013 (Table 3).

           

Systemwide RPMs (79.0 billion) reached a new seasonally-adjusted all-time high, up 0.3 percent from the previous high in December 2016 (78.7 billion) (Table 4). Domestic RPM (56.1 billion) reached a new seasonally-adjusted all-time high, up 0.5 percent from the previous high in November 2016 (55.8 billion) (Table 5). International RPMs (22.9 billion) were down 0.7 percent from the all-time seasonally-adjusted high (23.0 billion) reached in June 2016 (Table 6).

 

Systemwide ASMs (94.9 billion) reached a new seasonally-adjusted all-time high, up 0.6 percent from the previous high in December 2016 (94.3 billion) (Table 7). Domestic ASMs (66.5 billion) reached a new seasonally-adjusted all-time high, up 0.8 percent from the previous high in December 2016 (66.0 billion) (Table 8). International ASMs (28.3 billion) were down 0.2 percent from the all-time seasonally-adjusted high (28.4 billion) reached in June 2016 (Table 9).

 

Systemwide passenger enplanements (69.3 million) were down 0.1 percent from the all-time seasonally-adjusted high (69.4 million) reached in November 2016 (Table 10). Domestic passenger enplanements (60.5 million) were down 0.4 percent from the all-time seasonally-adjusted high (60.8 million) reached in November 2016 (Table 11). International passenger enplanements (8.8 million) reached a new seasonally-adjusted all-time high, up 0.7 percent from December 2016 (8.7 million) (Table 12).

 

Seasonally adjusted trends are for the time period January 2000 to present. Additional data, including domestic and international numbers, can be found on the seasonally-adjusted data  page.

 

Unadjusted

 

Systemwide load factor (79.4) was down 0.9 points from the all-time January high (80.3) reached in 2014 (Table 13). Domestic load factor (79.5) was down 1.2 points from the all-time January high (80.7) reached in 2014 (Table 14). International load factor (79.2) was down 0.4 points from the all-time January high (79.6) reached in 2014 (Table 15).

           

Systemwide RPMs (71.4 billion) reached an all-time January high, up 3.1 percent from the previous high (69.3 billion) reached in 2016 (Table 16). Domestic RPMs (50.1 billion) reached an all-time January high, up 4.2 percent from the previous high (48.1 billion) reached in 2016 (Table 17). International RPMs (21.3 billion) reached an all-time January high, up 0.5 percent from the previous high (21.2 billion) reached in 2016 (Table 18).

 

Systemwide ASMs (89.9 billion) reached an all-time January high, up 4.1 percent from the previous high (86.3 billion) reached in 2016 (Table 19). Domestic ASMs (63.0 billion) reached an all-time January high, up 3.9 percent from the previous high (60.6 billion) reached in 2008 (Table 20). International ASMs (26.9 billion) reached an all-time January high, up 0.8 percent from the previous high (26.7 billion) reached in 2016 (Table 21).

 

Systemwide passenger enplanements (62.5 million) reached an all-time January high, up 2.7 percent from the previous high (60.8 million) reached in 2016 (Table 22). Domestic passenger enplanements (54.0 million) reached an all-time January high, up 2.8 percent from the previous high (52.5 million) reached in 2016 (Table 23). International passenger enplanements (8.5 million) reached an all-time January high, up 2.1 percent from the previous high (8.3 million) reached in 2016 (Table 24).

 

Unadjusted trends are for the time period January 1996 to present. Data are available at Customize Table and can be downloaded from the seasonally-adjusted data  page.

 

Explanation of seasonal adjustment

 

Seasonal adjustment allows the comparing of monthly load factors to all other months. When the primary purpose is to examine monthly shifts in transportation services output and analyze short-term trends, the variation introduced by normal seasonal changes must be removed from the data. Transportation is highly seasonal, and without adjustment, the data do not give an accurate picture of underlying changes in aviation, passenger travel.

 

Seasonal adjustment of the data removes the seasonal events that follow a regular seasonal pattern. Changes that are not due to seasonality, such as a change in air travel resulting from economic conditions become more readily apparent.

 

The aviation data are seasonally adjusted for the effects of trading day, moving holidays, and data outliers.

 

See Seasonal Adjustment for methodology and additional explanation.

 

Reporting Notes

 

Data are compiled from monthly reports filed with BTS by commercial U.S. air carriers detailing operations, passenger traffic and freight traffic. This release includes data received by BTS from 81 carriers as of April 10 for U.S. carrier scheduled civilian operations.

 

Go to http://www.transtats.bts.gov/releaseinfo.asp for the complete list of reporting and non-reporting carriers. U.S. carriers’ foreign point-to-point flights are included in system and international totals. To create a customized table for passengers, flights, RPMs, ASMs and other data, including non-scheduled service, go to http://apps.bts.gov/xml/air_traffic/src/index.xml#CustomizeTable

 

For additional scheduled service numbers for U.S. airlines, U.S. and foreign airlines, by airline and by airport, see Passengers, Flights, Revenue Passenger-Miles, Available Seat-Miles and Load Factor.

 

Traffic numbers are available on the BTS website at TranStats, the Intermodal Transportation Database, at http://transtats.bts.gov.  Click on “Aviation.”  For systemwide passengers, RPMs and ASMs by carrier through January, click on “Air Carrier Summary Data (Form 41 and 298C Summary Data),” and then click on “Schedule T-1.” Use crosstabs to find scheduled service.

 

For domestic numbers through January and international numbers through October by origin as well as by carrier, click on “Aviation,” then click on “Air Carrier Statistics (Form 41 Traffic).” Click on “T-100 Market” for system passenger numbers, “T-100 Domestic Market” for domestic or “T-100 International Market” for international.  For flights, stage length and trip length, use the appropriate T-100 Segment database. Use crosstabs to find scheduled service.

 

International totals in this press release consist of all U.S. carrier operations to and from the U.S. and from one foreign point to another foreign point. TranStats T-100 systemwide and international totals do not include U.S. carriers’ foreign point-to-point flights. For January, U.S. carriers reported 60,490 foreign point-to-point passengers.

 

Data are subject to revision. BTS has scheduled May 11 for the release of February traffic data. None of the data are from samples so measures of statistical significance do not apply.

 

Seasonally-Adjusted Tables

 

Load Factor on U.S. Airlines, Seasonally-Adjusted (Tables 1-3)

 

Table 1. Systemwide Load Factor on U.S. Airlines, Seasonally-Adjusted

Systemwide (Domestic + International) RPMs/ASMs (both seasonally-adjusted) in percent

Scheduled service only

 

2014

2015

2016

2017

January

84.2

82.9

83.7

83.3

February

83.8

83.9

83.4

 

March

83.6

83.9

82.6

 

April

83.8

82.8

83.4

 

May

84.1

83.2

83.6

 

June

83.1

83.6

83.8

 

July

83.1

83.9

83.4

 

August

83.3

84.2

82.6

 

September

83.2

83.9

83.6

 

October

82.7

84.6

83.6

 

November

82.8

83.7

84.1

 

December

82.8

84.0

83.5

 

 

Source: Bureau of Transportation Statistics, T-100 Segment

Note: Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs)

 

Table 2. Domestic Load Factor on U.S. Airlines, Seasonally-Adjusted

Domestic RPMs/ASMs (both seasonally-adjusted) in percent

Scheduled service only

 

2014

2015

2016

2017

January

85.1

83.9

85.0

84.3

February

84.9

85.1

84.6

 

March

85.1

85.2

83.5

 

April

84.5

84.3

84.7

 

May

85.0

84.3

85.2

 

June

84.4

84.9

85.0

 

July

84.6

85.0

84.3

 

August

84.4

85.3

83.6

 

September

84.2

85.3

84.9

 

October

83.7

85.7

85.0

 

November

84.0

84.8

85.0

 

December

83.9

85.6

84.6

 

 

Source: Bureau of Transportation Statistics, T-100 Domestic Segment

Note: Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs).

 

Table 3. International Load Factor on U.S. Airlines, Seasonally-Adjusted

International RPMs/ASMs (both seasonally-adjusted) in percent

Scheduled service only

 

2014

2015

2016

2017

January

82.3

80.7

80.9

80.7

February

81.5

81.4

80.7

 

March

80.6

81.0

80.4

 

April

82.3

79.6

80.5

 

May

82.2

80.8

79.8

 

June

80.5

80.9

81.2

 

July

79.8

81.5

81.3

 

August

80.9

81.8

80.3

 

September

80.9

80.9

80.6

 

October

80.5

81.9

80.3

 

November

80.0

81.3

81.9

 

December

80.6

80.5

81.0

 

 

Source: Bureau of Transportation Statistics, T-100 International Segment

Note: Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs).

 

 Revenue Passenger-Miles on U.S. Airlines, Seasonally-Adjusted (Tables 4-6)

 

Table 4. Systemwide Revenue Passenger-Miles (RPMs) on U.S. Airlines, Seasonally-Adjusted

Systemwide (Domestic + International) RPMs (seasonally-adjusted) in billions (000,000,000)

Scheduled service only

 

2014

2015

2016

2017

January

71.0

73.1

76.5

79.0

February

71.2

73.4

76.6

 

March

72.2

74.3

76.3

 

April

71.7

74.1

77.1

 

May

72.0

74.7

77.8

 

June

71.7

75.0

78.4

 

July

71.7

75.8

78.0

 

August

71.8

76.3

77.3

 

September

72.0

76.0

78.3

 

October

72.0

76.8

78.3

 

November

72.4

76.3

78.6

 

December

73.0

76.9

78.7

 

 

Source: Bureau of Transportation Statistics, T-100 Segment

Note: Revenue passenger-miles are a measure of the volume of air passenger transportation. A revenue passenger-mile is equal to one paying passenger carried one mile.

 

Table 5. Domestic Revenue Passenger-Miles (RPMs) on U.S. Airlines, Seasonally-Adjusted

Domestic RPMs (seasonally-adjusted) in billions (000,000,000)

Scheduled service only

 

2014

2015

2016

2017

January

48.8

50.7

53.8

56.1

February

49.1

50.9

54.0

 

March

49.9

51.8

53.7

 

April

49.2

51.8

54.4

 

May

49.4

52.1

55.1

 

June

49.3

52.4

55.3

 

July

49.6

52.9

55.0

 

August

49.6

53.2

54.6

 

September

49.8

53.2

55.5

 

October

49.9

53.9

55.6

 

November

50.2

53.6

55.8

 

December

50.6

54.2

55.8

 

 

Source: Bureau of Transportation Statistics, T-100 Domestic Segment

Note: Revenue passenger-miles are a measure of the volume of air passenger transportation. A revenue passenger-mile is equal to one paying passenger carried one mile.

 

Table 6. International Revenue Passenger-Miles (RPMs) on U.S. Airlines, Seasonally-Adjusted

International RPMs (seasonally-adjusted) in billions (000,000,000)

Scheduled service only

 

2014

2015

2016

2017

January

22.2

22.4

22.6

22.9

February

22.2

22.4

22.6

 

March

22.2

22.5

22.6

 

April

22.5

22.3

22.7

 

May

22.6

22.6

22.6

 

June

22.4

22.6

23.0

 

July

22.1

22.9

23.0

 

August

22.3

23.0

22.7

 

September

22.2

22.8

22.8

 

October

22.1

22.9

22.7

 

November

22.2

22.7

22.7

 

December

22.4

22.7

22.9

 

 

Source: Bureau of Transportation Statistics, T-100 International Segment

Note: Revenue passenger-miles are a measure of the volume of air passenger transportation. A revenue passenger-mile is equal to one paying passenger carried one mile.

 

Available Seat-Miles on U.S. Airlines, Seasonally-Adjusted (Tables 7-9)

 

 

Table 7. Systemwide Available Seat-Miles (ASMs) on U.S. Airlines, Seasonally-Adjusted

Systemwide (Domestic + International) ASMs (seasonally-adjusted) in billions (000,000,000)

Scheduled service only

 

2014

2015

2016

2017

January

84.3

88.2

91.3

94.9

February

85.0

87.4

91.8

 

March

86.3

88.6

92.4

 

April

85.6

89.4

92.4

 

May

85.6

89.7

93.1

 

June

86.2

89.6

93.5

 

July

86.3

90.4

93.6

 

August

86.2

90.6

93.7

 

September

86.6

90.5

93.7

 

October

87.1

90.8

93.7

 

November

87.5

91.1

93.4

 

December

88.2

91.5

94.3

 

 

Source: Bureau of Transportation Statistics, T-100 Segment

Note: Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile.

 

Table 8. Domestic Available Seat-Miles (ASMs) on U.S. Airlines, Seasonally-Adjusted

Domestic ASMs (seasonally-adjusted) in billions (000,000,000)

Scheduled service only

 

2014

2015

2016

2017

January

57.3

60.4

63.3

66.5

February

57.8

59.9

63.8

 

March

58.7

60.8

64.2

 

April

58.3

61.4

64.2

 

May

58.1

61.8

64.7

 

June

58.4

61.7

65.1

 

July

58.7

62.2

65.2

 

August

58.7

62.4

65.4

 

September

59.2

62.4

65.4

 

October

59.7

62.9

65.4

 

November

59.7

63.2

65.7

 

December

60.4

63.4

66.0

 

 

Source: Bureau of Transportation Statistics, T-100 Domestic Segment

Note: Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile.

 

Table 9. International Available Seat-Miles (ASMs) on U.S. Airlines, Seasonally-Adjusted

International ASMs (seasonally-adjusted) in billions (000,000,000)

Scheduled service only

 

2014

2015

2016

2017

January

27.0

27.8

28.0

28.3

February

27.2

27.6

28.0

 

March

27.6

27.8

28.1

 

April

27.3

28.0

28.2

 

May

27.5

27.9

28.4

 

June

27.8

27.9

28.4

 

July

27.6

28.1

28.3

 

August

27.5

28.2

28.3

 

September

27.4

28.2

28.3

 

October

27.5

27.9

28.3

 

November

27.8

27.9

27.7

 

December

27.8

28.1

28.3

 

 

Source: Bureau of Transportation Statistics, T-100 International Segment

Note: Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile.

           

Passenger Enplanements on U.S. Airlines, Seasonally-Adjusted (Tables 10-12)

 

 

Table 10. Systemwide Passenger Enplanements on U.S. Airlines, Seasonally-Adjusted

Systemwide (Domestic + International) passenger enplanements (seasonally adjusted) in millions (000,000)

Scheduled service only

 

2014

2015

2016

2017

January

62.81

64.78

67.56

69.34

February

63.07

64.91

67.54

 

March

63.96

65.63

67.05

 

April

63.51

65.75

67.94

 

May

63.54

66.02

68.95

 

June

63.41

66.21

69.03

 

July

63.70

66.98

68.49

 

August

63.55

67.45

68.01

 

September

63.76

67.29

69.29

 

October

63.59

67.92

69.24

 

November

64.04

67.45

69.42

 

December

64.16

68.01

68.69

 

 

Source: Bureau of Transportation Statistics, T-100 Market

 

Table 11. Domestic Passenger Enplanements on U.S. Airlines, Seasonally-Adjusted

Domestic passenger enplanements (seasonally adjusted) in millions (000,000)

Scheduled service only

 

2014

2015

2016

2017

January

54.49

56.39

58.97

60.53

February

54.76

56.52

58.96

 

March

55.61

57.24

58.46

 

April

55.10

57.36

59.33

 

May

55.15

57.59

60.33

 

June

55.04

57.72

60.29

 

July

55.37

58.38

59.77

 

August

55.22

58.78

59.36

 

September

55.47

58.67

60.65

 

October

55.40

59.31

60.59

 

November

55.72

58.83

60.81

 

December

55.80

59.36

59.95

 

 

Source: Bureau of Transportation Statistics, T-100 Domestic Market

 

Table 12. International Passenger Enplanements on U.S. Airlines, Seasonally-Adjusted

International passenger enplanements (seasonally adjusted) in millions (000,000)

Scheduled service only

 

2014

2015

2016

2017

January

8.32

8.40

8.60

8.81

February

8.31

8.40

8.59

 

March

8.36

8.39

8.60

 

April

8.42

8.39

8.61

 

May

8.39

8.44

8.62

 

June

8.37

8.49

8.74

 

July

8.33

8.59

8.72

 

August

8.33

8.68

8.64

 

September

8.29

8.63

8.64

 

October

8.19

8.61

8.65

 

November

8.32

8.62

8.62

 

December

8.36

8.65

8.74

 

 

Source: Bureau of Transportation Statistics, T-100 International Market

  

Unadjusted Tables

 

Load Factor on U.S. Airlines, Unadjusted (Tables 13-15)

 

Table 13. Systemwide Load Factor on U.S. Airlines, Unadjusted

Systemwide (Domestic + International) RPMs/ASMs (both unadjusted) in percent

Scheduled service only

 

2014

2015

2016

2017

January

80.3

79.1

80.2

79.4

February

79.8

80.2

78.8

 

March

83.5

83.9

83.6

 

April

83.4

82.5

82.0

 

May

85.0

84.1

83.8

 

June

86.4

86.4

86.6

 

July

86.7

87.4

86.8

 

August

86.5

86.4

84.6

 

September

81.9

83.0

83.3

 

October

82.8

85.0

83.8

 

November

79.8

82.4

83.1

 

December

82.6

82.9

82.8

 

1 Mo. Value

80.3

79.1

80.2

79.4

Yr. Value

83.4

83.8

83.4

 

 

Source: Bureau of Transportation Statistics, T-100 Segment

Note: Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs).

 

Table 14. Domestic Load Factor on U.S. Airlines, Unadjusted

Domestic RPMs/ASMs (both unadjusted) in percent

Scheduled service only

 

2014

2015

2016

2017

January

80.7

79.2

80.6

79.5

February

82.1

82.4

80.8

 

March

85.5

85.8

85.3

 

April

84.9

84.9

84.1

 

May

86.3

85.6

85.9

 

June

87.4

87.4

87.6

 

July

87.8

88.1

87.2

 

August

86.9

86.6

84.7

 

September

82.1

83.8

84.2

 

October

84.1

86.4

85.4

 

November

81.4

84.2

84.7

 

December

83.5

84.0

83.4

 

1 Mo. Value

80.7

79.2

80.6

79.5

Yr. Value

84.5

85.0

84.6

 

 

Source: Bureau of Transportation Statistics, T-100 Segment

Note: Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs).

 

Table 15. International Load Factor on U.S. Airlines, Unadjusted

International RPMs/ASMs (both unadjusted) in percent

Scheduled service only

 

2014

2015

2016

2017

January

79.6

78.8

79.5

79.2

February

75.0

75.3

73.9

 

March

79.2

79.5

79.4

 

April

80.1

77.1

77.3

 

May

82.3

80.8

79.3

 

June

84.4

84.4

84.5

 

July

84.4

85.8

86.0

 

August

85.5

86.0

84.3

 

September

81.6

81.4

81.1

 

October

79.8

81.6

80.1

 

November

76.2

78.1

78.9

 

December

80.8

80.3

81.2

 

1 Mo. Value

79.6

78.8

79.5

79.2

Yr. Value

81.0

81.0

80.7

 

 

Source: Bureau of Transportation Statistics, T-100 Segment

Note: Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs).

 

Revenue Passenger-Miles on U.S. Airlines, Unadjusted (Tables 16-18)

 

Table 16. Systemwide Revenue Passenger-Miles (RPMs) on U.S. Airlines, Unadjusted

Systemwide (Domestic + International) RPMs (unadjusted) in billions (000,000,000)

Scheduled service only

 

2014

2015

2016

2017

January

64.1

66.0

69.3

71.4

February

57.9

59.8

64.6

 

March

73.6

75.8

78.7

 

April

70.7

73.1

75.1

 

May

75.2

78.0

80.8

 

June

79.5

82.7

86.5

 

July

83.7

88.3

90.6

 

August

81.2

85.2

86.1

 

September

68.4

72.5

75.3

 

October

71.3

76.1

77.3

 

November

65.2

70.0

72.2

 

December

71.8

74.8

77.0

 

1 Mo. Total

64.1

66.0

69.3

71.4

Yr. Total

862.5

902.2

933.5

 

 

Source: Bureau of Transportation Statistics, T-100 Segment

Note: Revenue passenger-miles are a measure of the volume of air passenger transportation. A revenue passenger-mile is equal to one paying passenger carried one mile.

 

Table 17. Domestic Revenue Passenger-Miles (RPMs) on U.S. Airlines, Unadjusted

Domestic RPMs (unadjusted) in billions (000,000,000)

Scheduled service only

 

2014

2015

2016

2017

January

43.6

45.1

48.1

50.1

February

40.5

42.3

46.5

 

March

51.9

53.9

56.7

 

April

49.3

51.9

53.6

 

May

51.5

54.3

57.1

 

June

54.0

57.0

60.3

 

July

56.9

60.4

62.4

 

August

54.6

57.8

59.3

 

September

46.3

49.9

52.7

 

October

50.1

54.1

55.3

 

November

46.4

50.9

53.3

 

December

50.3

53.1

54.8

 

1 Mo. Total

43.6

45.1

48.1

50.1

Yr. Total

595.3

630.7

660.0

 

 

Source: Bureau of Transportation Statistics, T-100 Domestic Segment

Note: Revenue passenger-miles are a measure of the volume of air passenger transportation. A revenue passenger-mile is equal to one paying passenger carried one mile.

 

Table 18. International Revenue Passenger-Miles (RPMs) on U.S. Airlines, Unadjusted

International RPMs (unadjusted) in billions (000,000,000)

Scheduled service only

 

2014

2015

2016

2017

January

20.5

20.8

21.2

21.3

February

17.3

17.5

18.1

 

March

21.8

21.8

22.0

 

April

21.5

21.2

21.5

 

May

23.7

23.8

23.7

 

June

25.5

25.7

26.2

 

July

26.8

27.8

28.3

 

August

26.6

27.4

26.9

 

September

22.1

22.6

22.7

 

October

21.2

22.0

22.0

 

November

18.8

19.1

18.9

 

December

21.5

21.7

22.2

 

1 Mo. Total

20.5

20.8

21.2

21.3

Yr. Total

267.2

271.6

273.5

 

 

Source: Bureau of Transportation Statistics, T-100 International Segment

Note: Revenue passenger-miles are a measure of the volume of air passenger transportation. A revenue passenger-mile is equal to one paying passenger carried one mile.

 

 

Available Seat-Miles on U.S. Airlines, Unadjusted (Tables 19-21)

 

Table 19. Systemwide Available Seat-Miles (ASMs) on U.S. Airlines, Unadjusted

Systemwide (Domestic + International) ASMs (unadjusted) in billions (000,000,000)

Scheduled service only

 

2014

2015

2016

2017

January

79.8

83.4

86.3

89.9

February

72.5

74.5

81.9

 

March

88.2

90.3

94.2

 

April

84.8

88.6

91.6

 

May

88.5

92.8

96.4

 

June

92.0

95.7

99.9

 

July

96.5

101.0

104.4

 

August

94.0

98.6

101.8

 

September

83.5

87.3

90.4

 

October

86.1

89.5

92.2

 

November

81.7

84.9

86.9

 

December

86.8

90.3

93.0

 

1 Mo. Total

79.8

83.4

86.3

89.9

Yr. Total

1,034.4

1,076.9

1,119.0

 

 

Source: Bureau of Transportation Statistics, T-100 Segment

Note: Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile

 

Table 20. Domestic Available Seat-Miles (ASMs) on U.S. Airlines, Unadjusted

Domestic ASMs (unadjusted) in billions (000,000,000)

Scheduled service only

 

2014

2015

2016

2017

January

54.0

57.0

59.7

63.0

February

49.4

51.3

57.5

 

March

60.7

62.9

66.5

 

April

58.0

61.1

63.8

 

May

59.7

63.4

66.5

 

June

61.8

65.2

68.8

 

July

64.8

68.6

71.5

 

August

62.9

66.7

70.0

 

September

56.5

59.5

62.5

 

October

59.6

62.6

64.8

 

November

56.9

60.5

62.9

 

December

60.3

63.2

65.7

 

1 Mo. Total

54.0

57.0

59.7

63.0

Yr. Total

704.6

742.0

780.2

 

 

Source: Bureau of Transportation Statistics, T-100 Domestic Segment

Note: Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile.

 

Table 21. International Available Seat-Miles (ASMs) on U.S. Airlines, Unadjusted

International ASMs (unadjusted) in billions (000,000,000)

Scheduled service only

 

2014

2015

2016

2017

January

25.8

26.4

26.7

26.9

February

23.1

23.3

24.5

 

March

27.5

27.5

27.7

 

April

26.8

27.5

27.8

 

May

28.8

29.4

29.8

 

June

30.2

30.5

31.1

 

July

31.7

32.4

32.9

 

August

31.1

31.9

31.9

 

September

27.0

27.8

27.9

 

October

26.5

27.0

27.4

 

November

24.7

24.5

24.0

 

December

26.6

27.0

27.3

 

1 Mo. Total

25.8

26.4

26.7

26.9

Yr. Total

329.8

335.2

339.0

 

 

Source: Bureau of Transportation Statistics, T-100 International Segment

Note: Available seat-miles are a measure of the capacity of air passenger transportation. An available seat-mile is equal to one aircraft seat carried one mile.

 

 

Passenger Enplanements on U.S. Airlines, Unadjusted (Tables 22-24)

 

Table 22. Systemwide Passenger Enplanements on U.S. Airlines, Unadjusted

Systemwide (Domestic + International) passenger enplanements (unadjusted) in millions (000,000)

Scheduled service only

 

2014

2015

2016

2017

January

55.81

57.78

60.81

62.47

February

52.44

54.16

58.49

 

March

66.44

68.20

70.56

 

April

63.49

65.92

67.24

 

May

66.51

68.93

71.51

 

June

68.60

71.27

74.50

 

July

71.89

75.63

76.88

 

August

69.53

72.87

73.45

 

September

59.99

63.74

66.47

 

October

64.49

68.73

69.54

 

November

59.74

64.59

66.59

 

December

63.78

66.40

66.93

 

1 Mo. Total

55.81

57.78

60.81

62.47

Yr. Total

762.71

798.22

822.97

 

 

Source: Bureau of Transportation Statistics, T-100 Market

 

Table 23. Domestic Passenger Enplanements on U.S. Airlines, Unadjusted

Domestic passenger enplanements (unadjusted) in millions (000,000)

Scheduled service only

 

2014

2015

2016

2017

January

47.96

49.73

52.47

53.96

February

45.51

47.17

51.11

 

March

57.76

59.56

61.59

 

April

55.25

57.70

58.89

 

May

57.89

60.25

62.75

 

June

59.26

61.81

64.75

 

July

61.76

65.13

66.13

 

August

59.76

62.77

63.50

 

September

52.53

55.99

58.62

 

October

57.08

60.89

61.71

 

November

52.58

57.15

59.27

 

December

55.49

57.87

58.21

 

1 Mo. Total

47.96

49.73

52.47

53.96

Yr. Total

662.83

696.02

719.00

 

 

Source: Bureau of Transportation Statistics, T-100 Domestic Market

 

Table 24. International Passenger Enplanements on U.S. Airlines, Unadjusted

International passenger enplanements (unadjusted) in millions (000,000)

Scheduled service only

 

2014

2015

2016

2017

January

7.85

8.06

8.33

8.51

February

6.93

7.00

7.38

 

March

8.68

8.64

8.96

 

April

8.24

8.22

8.34

 

May

8.62

8.67

8.76

 

June

9.34

9.46

9.74

 

July

10.13

10.50

10.75

 

August

9.77

10.09

9.95

 

September

7.46

7.75

7.86

 

October

7.41

7.84

7.83

 

November

7.16

7.44

7.32

 

December

8.29

8.53

8.71

 

1 Mo. Total

7.85

8.06

8.33

8.51

Yr. Total

99.88

102.20

103.93

 

 

Source: Bureau of Transportation Statistics, T-100 International Market