Total Outsourced Flight Equipment Maintenance Expense
$ Million
		1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
American		$       204	$       226	$       242	$       318	$       394	$       434	$        439	$       502	$       405	$         483	$          473	$          480	$          500	$          556	$         564	$         564	$          569	$          591	$          682	$          700	$          975	$       1,319	$       1,425	$       1,482	$       1,723	$       1,078
Continental		$       244	$       258	$       326	$       340	$       404	$       410	$        318	$       250	$       298	$         333	$          371	$          438	$          494	$          480	$         470	$         420	$          491	$             -	$             -	$             -	$             -	$             -	$             -	$             -	$             -	$             -
Delta		$       113	$       171	$       172	$       257	$       292	$       305	$        327	$       316	$       255	$         271	$          374	$          467	$          427	$          326	$         307	$         810	$          827	$       1,006	$       1,067	$          942	$          950	$       1,016	$       1,131	$       1,051	$       1,040	$          621
Northwest		$       147	$       213	$       247	$       320	$       279	$       273	$        337	$       296	$       298	$         261	$          519	$          647	$          666	$          603	$         411	$            -	$             -	$             -	$             -	$             -	$             -	$             -	$             -	$             -	$             -	$             -
United		$       114	$       144	$       250	$       283	$       324	$       336	$        384	$       304	$       329	$         516	$          644	$          787	$          885	$          808	$         665	$         673	$          987	$       1,336	$       1,413	$       1,414	$       1,361	$       1,398	$       1,552	$       1,524	$       1,388	$          656
US Airways		$       194	$       205	$       214	$       215	$       237	$       257	$        291	$       215	$       248	$         242	$          307	$          241	$          380	$          717	$         635	$         590	$          609	$          596	$          574	$          594	$          350	$             -	$             -	$             -	$             -	$             -
America West		$         52	$       116	$       135	$       168	$       199	$       237	$        232	$       229	$       204	$         185	$          236	$          218	$          177	$             -	$             -	$            -	$             -	$             -	$             -	$             -	$             -	$             -	$             -	$             -	$             -	$             -
--sub Network		$    1,066	$    1,333	$    1,585	$    1,901	$    2,129	$    2,251	$     2,328	$    2,112	$    2,036	$      2,291	$       2,924	$       3,277	$       3,530	$       3,488	$      3,052	$      3,057	$       3,483	$       3,529	$       3,736	$       3,650	$       3,636	$       3,733	$       4,108	$       4,057	$       4,151	$       2,355
Southwest		$       189	$       223	$       226	$       269	$       325	$       327	$        340	$       346	$       383	$         399	$          380	$          415	$          537	$          635	$         638	$         649	$          670	$          889	$          925	$          857	$          871	$          856	$          837	$          941	$       1,015	$          580
AirTran		$          -	$          -	$           1	$         12	$         18	$         47	$          50	$         28	$         40	$            47	$            66	$          105	$          122	$          133	$         167	$         198	$          220	$            68	$             -	$             -	$             -	$             -	$             -	$             -	$             -	$             -
jetBlue		$          -	$          -	$          -	$          -	$          -	$           0	$            4	$           6	$         18	$            37	$            56	$            75	$            90	$          112	$         135	$         155	$          206	$          312	$          398	$          380	$          449	$          520	$          579	$          571	$          569	$          413
Alaska		$         44	$         51	$         60	$         67	$         88	$       124	$        114	$       128	$       131	$         131	$          172	$          147	$          141	$          144	$         159	$         147	$          137	$          139	$          163	$          144	$          153	$          150	$          190	$          354	$          356	$          306
Virgin America		$          -	$          -	$          -	$          -	$          -	$          -	$           -	$          -	$          -	$             -	$             -	$             -	$             -	$               7	$            19	$           19	$            24	$            26	$            17	$            26	$            56	$            33	$            81	$             -	$             -	$             -
Hawaiian		$         56	$         65	$         72	$         80	$         98	$       106	$          95	$         81	$         44	$            43	$            50	$            60	$            80	$            95	$         113	$         112	$          156	$          170	$          189	$          207	$          209	$          207	$          192	$          212	$          216	$          105
-- sub Hybrid		$       289	$       339	$       359	$       428	$       529	$       604	$        603	$       590	$       615	$         658	$          724	$          801	$          970	$       1,126	$      1,230	$      1,279	$       1,412	$       1,603	$       1,692	$       1,614	$       1,738	$       1,766	$       1,879	$       2,078	$       2,157	$       1,404
Allegiant		$          -	$          -	$          -	$          -	$          -	$          -	$           -	$          -	$          -	$              1	$               0	$               1	$               1	$               1	$              1	$             2	$               2	$               2	$            15	$            38	$            38	$            43	$            32	$            12	$            11	$               5
Frontier		$           6	$         16	$         22	$         26	$         26	$         33	$          39	$         36	$         38	$            48	$            39	$            47	$            55	$            57	$            21	$             5	$               0	$               0	$            50	$            33	$            43	$            45	$            50	$            43	$            46	$            47
Spirit		$           3	$           9	$         10	$         14	$         21	$         20	$          25	$         32	$         41	$            38	$            28	$            11	$               7	$               6	$              9	$             7	$               8	$            19	$            23	$            31	$            33	$            35	$            39	$            40	$            45	$            26
-- sub ULCC		$           9	$         25	$         31	$         40	$         48	$         53	$          64	$         69	$         79	$            87	$            67	$            59	$            63	$            65	$            31	$           14	$            10	$            20	$            87	$          102	$          114	$          123	$          121	$            95	$          103	$            78
Total All Sectors		$    1,365	$    1,697	$    1,975	$    2,369	$    2,705	$    2,908	$     2,995	$    2,771	$    2,730	$      3,035	$       3,715	$       4,137	$       4,563	$       4,679	$      4,313	$      4,350	$       4,906	$       5,153	$       5,515	$       5,365	$       5,488	$       5,623	$       6,108	$       6,231	$       6,410	$       3,837
Data Source:  US DOT Form 41 via BTS, Schedule P52.