U.S. airlines carried 57.7 million scheduled domestic and international passengers in January 2008, 1.0 percent more than they did in January 2007, the U.S. Department of Transportation’s Bureau of Transportation Statistics (BTS) today reported in a release of preliminary data (Table 1).

BTS, a part of DOT’s Research and Innovative Technology Administration, reported that the rise was the 16th consecutive monthly increase in system passengers from the same month of the previous year (Table 2).

U.S. airlines carried 0.4 percent more domestic passengers and 4.9 percent more international passengers in January 2008 than in January 2007 (Tables 5, 9). These passengers traveled on planes with average load factors of 74.0 percent (Tables 1, 5, 9).

Top Airlines in January

American Airlines carried more total system and international passengers in January 2008 than any other airline (Tables 3, 11); and Southwest Airlines carried more domestic passengers (Table 7).

America West Airlines and US Airways report jointly as US Airways. Numbers reported as US Airways in this release for previous years do not include America West’s numbers. See the notes for system, domestic and international airline ranking tables 3, 7 and 11 for 2007 passenger numbers previously reported for America West.

Top Airports in January

More total system and domestic passengers boarded planes in January 2008 at Atlanta Hartsfield-Jackson International than at any other U.S. airport (Tables 4 and 8); more international passengers boarded U.S. carriers at Miami International than at any other U.S. airport (Table 12).

Flights Operated

U.S. carriers operated 863,000 domestic and international flights in January 2008, 1.5 percent fewer than in January 2007 (Table 1). Domestic fights were down 1.7 percent from January of the previous year while international flights were up 1.0 percent (Tables 5, 9).

System Comparisons (Table 1-4)

In other total system comparisons from January 2007 to January 2008 (Table 1):

Revenue passenger miles (RPMs), a measure of the number of passengers and the distance flown, were up 2.6 percent in January 2008.

Available seat-miles (ASMs), a measure of airline capacity using the number of seats and the distance flown, were up 1.8 percent in January 2008.

Passenger load factor, passenger miles as a proportion of available seat-miles, was up 0.6 load factor points in January 2008.

Flight stage length, the average non-stop distance flown per departure, was up 3.0 percent in January 2008.

Passenger trip length, the average distance flown per passenger, was up 1.6 percent in January 2008.

Among U.S. airlines, American Airlines carried 7.7 million passengers on its system in January 2008, the most of any airline (Table 3).

Among airports, Atlanta Hartsfield-Jackson International was the busiest U.S. airport in January 2008, with 3.1 million domestic and international passenger boardings on U. S. carriers (Table 4).

Domestic Air Travel (Tables 5-8)

U.S. airlines carried 50.2 million scheduled domestic passengers in January 2008, up 0.4 percent from 50.0 million carried in January 2007 (Table 6). The passengers were carried on 790,400 flights, down 1.7 percent from the 803,800 flights operated in January 2007 (Table 5).

In other domestic comparisons from January 2007 to January 2008 (Table 5):

Domestic revenue passenger miles (RPMs), a measure of the number of passengers and the distance flown, were up 0.9 percent in January 2008.

Domestic available seat-miles (ASMs), a measure of airline capacity using the number of seats and the distance flown, were unchanged in January 2008.

Domestic passenger load factor, passenger miles as a proportion of available seat-miles, was up 0.6 load factor points to 72.9 percent in January 2008.

Domestic flight stage length, the average non-stop distance flown per departure, was up 2.2 percent in January 2008.

Domestic passenger trip length, the average distance flown per passenger, was up 0.5 percent in January 2008.

Southwest Airlines carried 7.7 million domestic passengers in January 2008, the most of any airline (Table 7).

Atlanta Hartsfield-Jackson International was the busiest domestic airport in January 2008, with 2.8 million domestic passenger boardings (Table 8).

International Air Travel (Tables 9-12)

U.S. airlines carried 7.5 million scheduled international passengers in January 2008, up 4.9 percent from the 7.1 million carried in January 2007 (Table 9). The passengers were carried on 72,600 flights, up 1.0 percent from the 71,900 flights operated in January 2007 (Table 9).

In other international comparisons from January 2007 to January 2008 (Table 9):

International revenue passenger miles (RPMs), a measure of the number of passengers and the distance flown, were up 6.6 percent in January 2008.

International available seat-miles (ASMs), a measure of airline capacity using the number of seats and the distance flown, were up 6.1 percent in January 2008.

International passenger load factor, passenger miles as a proportion of available seat-miles, was up 0.4 load factor points to 76.5 in January 2008.

International flight stage length, the average non-stop distance flown per departure, was up 4.5 percent in January 2008.

International passenger trip length, the average distance flown per passenger was up 1.7 percent in January 2008.

American Airlines carried 1.8 million international passengers in January 2008, the most of any U.S. airline (Table 11).

Miami International was the busiest U.S. airport for international travel on U.S. carriers in January 2008, with 427,500 international passenger boardings (Table 12).

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 91 carriers as of April 3 for U.S. carrier scheduled civilian operations. 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://www.bts.gov/programs/airline_information/air_carrier_traffic_statistics/.

Additional traffic numbers are available on the BTS website at TranStats, the Intermodal Transportation Database, at http://transtats.bts.gov. Click on “Aviation.” For system 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.”

For domestic numbers through January and international numbers through October by origin as well as by carrier and region, after clicking on “Aviation,” 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.

TranStats system and international totals do not include U.S. carriers’ foreign point-to-point flights that are included in the summary totals in this press release. For January, U.S. carriers reported 248,344 foreign point-to-point passengers.

Data are subject to revision. BTS has scheduled May 15 for the release of February traffic data.

Table 1: Scheduled System (Domestic and International) Airline Travel on U.S. Carriers

	Monthly			Previous Calendar Years
	Jan 2007	Jan 2008	Change %	2006	2007	Change %
Passengers (in millions)	57.1	57.7	1.0	744.7	769.5	3.3
Flights (in thousands)	875.8	863.0	-1.5	10,557.9	10,667.0	1.0
Revenue Passenger Miles(in billions)	61.9	63.5	2.6	797.4	829.4	4.0
Available Seat-Miles(in billions)	84.4	85.8	1.8	1,006.3	1,037.6	3.1
Load Factor*	73.4	74.0	0.6	79.2	79.9	0.7
Flight Stage Length**	700.9	721.7	3.0	697.3	707.9	1.5
Passenger Trip Length***	1,083.3	1,100.7	1.6	1,070.8	1,077.9	0.7

Source: Bureau of Transportation Statistics, T-100 Market and Segment

*Change in load factor points

**The average non-stop distance flown per departure in miles

*** The average distance flown per passenger in miles

Note: Percent changes based on numbers prior to rounding.

Table 2. Total System (Domestic and International) Scheduled Enplanements on U.S. Carriers

Passenger numbers in millions (000,000)

	2006	2007	2006-2007 Pct. Change	2008	2007-2008 Pct. Change
January	55.6	57.1	2.8	57.7	1.0
February	53.3	54.1	1.4
March	65.8	67.2	2.0
April	63.2	64.9	2.7
May	64.4	66.8	3.6
June	67.2	69.7	3.6
July	69.5	72.4	4.1
August	66.5	71.3	7.3
September	56.4	59.2	4.9
October	61.6	64.2	4.1
November	60.3	61.9	2.7
December	60.7	60.8	0.1
Yr. Total	744.7	769.5	3.3

Source: Bureau of Transportation Statistics, T-100 Market

Note: Percent changes based on numbers prior to rounding.

Table 3. Top 10 U.S. Airlines, ranked by January 2008 System* Scheduled Enplanements

Passenger numbers in millions (000,000)

Jan 2008 Rank	Carrier	Jan 2008 Enplaned Passengers	Jan 2007 Rank	Jan 2006 Enplaned Passengers	Pct. Change 2007-2008
1	American	7.670	1	7.685	-0.2
2	Southwest	7.654	2	7.285	5.1
3	Delta	5.344	3	5.487	-2.6
4	United	4.776	4	5.323	-10.3
5	US Airways**	4.317	7	2.856	51.2
6	Northwest	3.896	5	4.083	-4.6
7	Continental	3.731	6	3.694	1.0
8	JetBlue	1.727	8	1.645	5.0
9	AirTran	1.630	11	1.494	9.1
10	SkyWest	1.588	10	1.628	-2.4

Source: Bureau of Transportation Statistics, T-100 Market

* System equals domestic plus international

** US Airways 2008 number is the report of the merged US Airways and America West. The 2007 numbers were reported separately by US Airways and America West. America West reported 1.642 million system passengers in January 2007.

Note: Percent changes based on numbers prior to rounding.

Table 4. Top 10 U.S. Airports ranked by January 2008 System* Scheduled Enplanements

Passenger numbers in millions (000,000)

Jan 2008 Rank	Airport	Jan 2008 Enplaned Passengers	Jan 2007 Rank	Jan 2007 Enplaned Passengers	Pct. Change 2007-2008
1	Atlanta	3.133	1	3.043	3.0
2	Chicago O'Hare	2.300	2	2.578	-10.8
3	Dallas-Ft. Worth	2.133	3	2.110	1.1
4	Denver	1.777	4	1.770	0.4
5	Los Angeles	1.755	5	1.767	-0.7
6	Las Vegas	1.613	6	1.642	-1.8
7	Houston Bush	1.572	8	1.571	0.0
8	Phoenix	1.558	7	1.609	-3.1
9	Orlando	1.389	9	1.325	4.8
10	Charlotte	1.300	14	1.217	6.8

Source: Bureau of Transportation Statistics, T-100 Market

* System equals domestic plus international

Note: Percent changes based on numbers prior to rounding.

Table 5: Domestic Scheduled Airline Travel on U.S. Carriers

	Monthly			Previous Calendar Years
	Jan 2007	Jan 2008	Change %	2006	2007	Change %
Passengers (in millions)	50.0	50.2	0.4	658.4	679.1	3.1
Flights (in thousands)	803.8	790.4	-1.7	9,708.1	9,810.2	1.1
Revenue Passenger Miles(in billions)	43.8	44.2	0.9	574.5	592.4	3.1
Available Seat-Miles(in billions)	60.6	60.6	0.0	725.7	741.3	2.1
Load Factor*	72.3	72.9	0.6	79.2	79.9	0.7
Flight Stage Length**	616.5	630.0	2.2	614.8	620.0	0.9
Passenger Trip Length***	876.1	880.6	0.5	872.6	872.2	0.0

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

*Change in load factor points

**The average non-stop distance flown per departure in miles

*** The average distance flown per passenger in miles

Note: Percent changes based on numbers prior to rounding.

Table 6. Domestic Scheduled Enplanements on U.S. Carriers

Passenger numbers in millions (000,000)

	2006	2007	2006-2007 Pct. Change	2008	2007-2008 Pct. Change
January	48.9	50.0	2.3	50.2	0.4
February	47.4	47.8	0.9
March	58.3	59.2	1.6
April	55.8	57.4	2.8
May	57.1	59.3	3.7
June	59.3	61.5	3.7
July	60.8	63.4	4.3
August	58.3	62.6	7.4
September	50.0	52.3	4.7
October	55.1	57.2	3.8
November	53.9	55.0	2.2
December	53.5	53.3	-0.5
Yr. Total	658.4	679.1	3.1

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

Note: Percent changes based on numbers prior to rounding.

Table 7. Top 10 U.S. Airlines, ranked by January 2008 Domestic Scheduled Enplanements

Passenger numbers in millions (000,000)

Jan 2008 Rank	Carrier	Jan 2008 Enplaned Passengers	Jan 2007 Rank	Jan 2007 Enplaned Passengers	Pct. Change 2007-2008
1	Southwest	7.654	1	7.285	5.1
2	American	5.851	2	5.910	-1.0
3	Delta	4.447	3	4.621	-3.8
4	US Airways*	3.833	7	2.536	51.1
5	United	3.815	4	4.364	-12.6
6	Northwest	3.075	5	3.278	-6.2
7	Continental	2.771	6	2.800	-1.0
8	JetBlue	1.639	8	1.600	2.4
9	AirTran	1.630	11	1.490	9.4
10	SkyWest	1.503	9	1.545	-2.7

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

* US Airways 2008 number is the report of the merged US Airways and America West. The 2007 number was reported separately by US Airways and America West. America West reported 1.519 million domestic passengers in January 2007.

Note: Percent changes based on numbers prior to rounding.

Table 8. Top 10 U.S. Airports, ranked by January 2008 Domestic Scheduled Enplanements

Passenger numbers in millions (000,000)

Jan 2008 Rank	Airport	Jan 2008 Enplaned Passengers	Jan 2007 Rank	Jan 2007 Enplaned Passengers	Pct. Change 2007-2008
1	Atlanta	2.824	1	2.744	2.9
2	Chicago O'Hare	2.054	2	2.322	-11.5
3	Dallas-Ft. Worth	1.957	3	1.945	0.6
4	Denver	1.714	4	1.714	0.0
5	Las Vegas	1.599	5	1.626	-1.6
6	Los Angeles	1.593	6	1.607	-0.9
7	Phoenix	1.497	7	1.555	-3.7
8	Orlando	1.383	9	1.319	4.9
9	Houston Bush	1.318	8	1.329	-0.8
10	Charlotte	1.212	11	1.141	6.2

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

Note: Percent changes based on numbers prior to rounding.

Table 9: International Scheduled Airline Travel on U.S. Carriers

	Monthly			Previous Calendar Years
	Jan 2007	Jan 2008	Change %	2006	2007	Change %
Passengers (in millions)	7.1	7.5	4.9	86.3	90.4	4.7
Flights (in thousands)	71.9	72.6	1.0	849.8	856.8	0.8
Revenue Passenger-Miles(in billions)	18.1	19.3	6.6	222.9	237.1	6.4
Available Seat-Miles(in billions)	23.7	25.2	6.1	280.6	296.3	5.6
Load Factor*	76.1	76.5	0.4	79.4	80.0	0.6
Flight Stage Length**	1,644.5	1,719.1	4.5	1,640.3	1,714.2	4.5
Passenger Trip Length***	2,540.7	2,583.0	1.7	2,582.4	2,623.1	1.6

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

*Change in load factor points

**The average non-stop distance flown per departure in miles

*** The average distance flown per passenger in miles

Note: Percent changes based on numbers prior to rounding.

Table 10 International Scheduled Enplanements on U.S. Carriers

Passenger numbers in millions (000,000)

	2006	2007	2006-2007 Pct. Change	2008	2007-2008 Pct. Change
January	6.7	7.1	6.0	7.5	4.9
February	6.0	6.3	5.4
March	7.5	7.9	5.0
April	7.3	7.5	1.9
May	7.3	7.5	2.6
June	7.9	8.2	3.3
July	8.7	8.9	3.2
August	8.2	8.7	6.1
September	6.5	6.9	6.5
October	6.6	7.0	6.3
November	6.4	6.9	6.5
December	7.2	7.5	4.9
Yr. Total	86.3	90.4	4.7

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

Note: Percent changes based on numbers prior to rounding.

Table 11. Top 10 U.S. Airlines, ranked by January 2008 International Scheduled Enplanements on U.S. Carriers

Passenger numbers in thousands (000)

Jan 2008 Rank	Carrier	Jan 2008 Enplaned Passengers	Jan 2007 Rank	Jan 2007 Enplaned Passengers	Pct. Change 2007-2008
1	American	1,818.8	1	1,775.2	2.5
2	United	961.5	2	958.2	0.3
3	Continental	959.3	3	894.3	7.3
4	Delta	896.5	4	866.2	3.5
5	Northwest	820.9	5	805.0	2.0
6	US Airways*	484.1	6	319.2	51.6
7	Alaska	203.0	7	203.3	-0.1
8	ExpressJet	168.6	8	160.4	5.1
9	Executive	142.2	9	138.1	3.0
10	Spirit	110.0	14	65.7	67.5

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

* US Airways 2008 number is the report of the merged US Airways and America West. The 2007 number was reported separately by US Airways and America West. America West reported 122,800 international passengers in January 2007.

Note: Percent changes based on numbers prior to rounding.