BTS | Table 4-21M: Energy Intensity of Certificated Air Carriers, All Services (a)

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Table 4-21M: Energy Intensity of Certificated Air Carriers, All Services^a

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	1960	1965	1970	1975	1980	1985	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
Aircraft-kilometers (millions)
Domestic operations	1,381	1,825	3,328	3,135	4,060	4,902	6,378	6,202	6,429	6,690	7,049	7,450	7,743	7,903	8,103	8,581	9,115	8,929	9,039	(R) 9,793	10,544
International operations	293	457	764	607	645	668	1,223	1,299	1,455	1,547	1,577	1,606	1,679	1,793	1,918	1,971	2,063	2,037	1,971	(R) 2,031	2,228
Available seat-kilometers (millions)
Domestic operations	84,040	152,545	343,048	388,306	556,878	717,487	906,165	874,901	897,996	919,722	942,171	971,910	1,008,075	1,049,160	1,065,889	1,125,463	1,170,046	1,118,816	1,089,443	(R) 1,108,949	1,190,173
International operations	21,480	47,529	83,622	99,335	139,220	164,094	274,087	276,101	313,474	322,112	320,087	326,954	335,841	368,039	382,280	391,040	408,851	378,696	346,984	(R) 329,521	369,243
Passenger-kilometers (millions)
Domestic operations	49,177	83,504	167,608	211,996	322,334	435,463	547,549	535,213	559,941	569,993	609,925	635,221	684,930	725,190	745,548	785,934	830,629	782,956	776,202	(R) 812,974	895,905
International operations	13,367	27,019	44,358	50,022	87,489	105,925	189,412	185,701	210,216	218,079	225,937	234,881	246,337	272,552	277,218	290,115	310,278	287,015	276,582	(R) 271,344	312,150
Fuel consumed (million liters)
Domestic operations	7,397	14,721	29,742	28,610	32,249	38,289	(R) 46,648	43,557	44,527	45,268	(R) 46,880	(R) 47,967	(R) 50,033	(R) 51,341	(R) 50,479	54,518	56,193	53,062	48,636	49,054	51,569
International operations	2,143	4,845	8,491	7,378	6,614	9,418	(R) 14,797	14,913	15,596	15,571	(R) 16,196	(R) 16,817	(R) 17,483	(R) 18,605	(R) 18,636	19,875	20,724	19,826	18,892	18,308	18,664
Seats per aircraft
Domestic operations	60.9	83.6	103.1	123.9	137.1	146.4	142.1	141.1	139.7	137.5	133.7	130.5	130.2	132.7	131.5	131.2	128.4	125.3	120.5	(R) 113.2	112.9
International operations	73.3	104.0	109.4	163.7	215.7	245.7	224.1	212.6	215.5	208.3	203.0	203.6	200.1	205.3	199.3	198.4	198.2	185.9	176.1	(R) 162.3	165.8
Seat-kilometers per liter
Domestic operations	11	10	12	14	17	19	(R) 19	20	20	20	(R) 20	(R) 20	(R) 20	(R) 20	(R) 21	21	21	21	22	(R) 23	23
International operations	10	10	10	13	21	17	(R) 19	19	20	21	(R) 20	(R) 19	(R) 19	(R) 20	(R) 21	20	20	19	18	(R) 18	20
Energy intensity (kilojoule / passenger-kilometer)^b
Domestic operations	5,659	6,633	6,677	5,078	3,764	3,308	(R) 3,206	3,062	2,992	2,988	(R) 2,892	(R) 2,841	(R) 2,749	(R) 2,664	(R) 2,548	2,610	2,545	2,550	2,358	(R) 2,270	2,166
International operations	6,031	6,748	7,202	5,550	2,845	3,345	(R) 2,939	3,022	2,792	2,687	(R) 2,697	(R) 2,694	(R) 2,670	(R) 2,568	(R) 2,529	2,578	2,513	2,599	2,570	(R) 2,539	2,250
Load factor (percent)
Domestic operations	58.5	54.7	48.9	54.6	58.0	60.7	60.4	61.2	62.4	62.0	64.7	65.4	67.9	69.1	69.9	69.8	71.0	69.1	70.3	(R) 72.6	74.4
International operations	62.2	56.8	53.0	50.4	62.8	64.6	69.1	67.3	67.1	67.6	70.6	71.8	73.3	74.1	72.5	74.2	75.9	72.8	76.6	76.5	79.1

KEY: R = revised.

^aU.S. owned carriers only. Operation of foreign-owned carriers in or out of the United States not included.

^b Calculation based on unrounded figures not shown here.

NOTES

Aircraft-kilometers includes all four air-carrier groups (majors, nationals, large regionals, and medium regionals), scheduled and charter, passenger, and all-cargo. Fuel consumed includes majors, nationals, and large regionals, scheduled and charter, pas

Passenger-kilometers includes all four air-carrier groups, scheduled and charter, passenger service only.

International operations include operations outside the United States, including those between the United States and foreign countries and the United States and its territories or possessions.

Heat equivalent factor used for joule conversion is 37,626,700 joules/liter.

1.609344 kilometers = 1 mile.

3.785412 liters = 1 gallon.

Aircraft-kilometers, available seat-kilometers, passenger-kilometers, and load factor:

1960-80: Air Transport Association, Internet site http://www.air-transport.org/public/industry, as of July 31, 2002.

1985-2004: U.S. Department of Transportation, Bureau of Transportation Statistics, Office of Airline Information, Air Carrier Traffic Statistics (Washington DC: Annual December issues).

Fuel consumed:

1960-75: U.S. Department of Transportation, Bureau of Transportation Statistics, Office of Airline Information, Internet site http://www.bts.gov/oai/fuel/fuelyearly.html as of July 21, 2004.

1980-2004: Ibid., Internet site http://www.bts.gov/xml/fuel/report/src/index.xml as of Apr. 28, 2005.

Seats per aircraft, seat-kilometers per liter, and energy intensiveness:

Derived by calculation.

Table 4-21M: Energy Intensity of Certificated Air Carriers, All Servicesa

Table 4-21M: Energy Intensity of Certificated Air Carriers, All Services^a