Northwest Airlines Aircraft Operating Statistics- Cost Per Block Hour (Unadjusted)
Northwest Airlines
		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
	Small Narrowbodies	$1,762	$1,835	$1,760	$1,950	$1,850	$2,076	$2,283	$2,069	$2,060	$2,411	$2,946	$2,904	$2,830	$4,022	$3,290
	(Ex Fuel)	$1,268	$1,244	$1,191	$1,460	$1,381	$1,354	$1,594	$1,488	$1,417	$1,506	$1,619	$1,362	$1,259	$1,289	$1,850
	Pilots	$619	$546	$506	$569	$563	$560	$628	$657	$704	$693	$680	$531	$494	$494	$805
	Salaries and Wages	$470	$374	$341	$390	$366	$386	$429	$441	$448	$443	$386	$313	$337	$319	$541
	Pilot Training	$30	$35	$42	$41	$39	$38	$40	$34	$37	$34	$27	$20	$28	$26	$28
	Benefits and Payroll Taxes	$88	$104	$88	$98	$118	$95	$120	$148	$188	$186	$234	$163	$94	$109	$192
	Per Diem/ Personnel	$32	$34	$36	$40	$39	$42	$40	$34	$32	$31	$33	$35	$36	$40	$44
	Purchased Goods	$539	$660	$635	$555	$533	$793	$757	$648	$706	$960	$1,393	$1,610	$1,646	$2,830	$1,452
	Fuel/Oil	$494	$591	$569	$491	$468	$722	$689	$581	$643	$905	$1,326	$1,541	$1,571	$2,733	$1,439
	Insurance	$3	$2	$1	$2	$2	$2	$3	$4	$3	$2	$2	$3	$1	$2	$12
	Other (inc. Tax)	$43	$67	$65	$62	$63	$68	$65	$63	$61	$53	$64	$66	$73	$95	$0
	Maintenance	$421	$440	$450	$637	$538	$465	$455	$428	$323	$426	$528	$453	$471	$505	$595
	Labor	$63	$62	$53	$58	$57	$56	$44	$46	$31	$38	$24	$1	$1	$3	$8
	Materials	$163	$170	$183	$244	$212	$155	$136	$119	$75	$105	$78	$55	$51	$59	$66
	Third Party	$62	$62	$78	$155	$108	$76	$98	$82	$79	$119	$270	$328	$328	$327	$355
	Total Direct	$254	$277	$308	$455	$358	$286	$278	$243	$182	$261	$366	$373	$366	$389	$429
	Burden	$169	$163	$144	$181	$183	$179	$178	$185	$141	$165	$173	$80	$106	$116	$166
	Aircraft Ownership	$176	$180	$158	$179	$205	$245	$422	$297	$323	$327	$340	$304	$209	$177	$418
	Rentals	$96	$75	$43	$40	$34	$57	$60	$61	$66	$66	$63	$29	$21	$13	$87
	Depreciation and Amortization	$80	$105	$114	$139	$172	$187	$362	$236	$257	$261	$277	$275	$188	$163	$331
	Other	$6	$9	$11	$10	$10	$13	$21	$38	$3	$4	$5	$6	$11	$17	$21
	Indicies
	Aircraft In Fleet	217	227	225	227	215	215	225	232	224	225	211	174	165	135	123	-	-	-	-	-	-	-	-	-	-	-
	Seats Per Departure	117	116	115	115	114	113	113	112	112	113	115	116	117	118	119	-	-	-	-	-	-	-	-	-	-	-
	Average Stage Length	533	528	533	531	534	537	547	558	572	568	577	578	566	584	637	-	-	-	-	-	-	-	-	-	-	-
	Gallons of Fuel Per Block Hour	933	919	908	906	898	874	863	831	789	779	774	766	763	762	771	-	-	-	-	-	-	-	-	-	-	-
	Load Factor	64.8%	64.5%	66.8%	66.4%	66.0%	67.4%	65.8%	65.9%	66.6%	69.1%	73.4%	78.1%	78.1%	79.6%	78.9%
	Daily Utilization per Aircraft
	Block Hours	8.39	8.13	8.19	7.33	8.06	8.28	7.88	7.64	7.76	7.69	7.66	7.99	7.84	7.89	7.68	-	-	-	-	-	-	-	-	-	-	-
	Airborne Hours	6.68	6.44	6.43	5.71	6.24	6.39	6.14	5.98	6.15	6.04	5.98	6.20	5.92	6.04	5.72	-	-	-	-	-	-	-	-	-	-	-
	Departures	5.01	4.85	4.78	4.24	4.61	4.70	4.44	4.26	4.30	4.25	4.17	4.30	4.13	4.12	3.78	-	-	-	-	-	-	-	-	-	-	-
	Large Narrowbodies	$2,061	$2,271	$2,255	$2,265	$2,087	$2,462	$2,715	$2,731	$2,827	$3,079	$3,612	$3,716	$3,745	$5,157	$3,968
	(Ex Fuel)	$1,598	$1,694	$1,688	$1,783	$1,622	$1,731	$2,011	$2,108	$2,088	$1,995	$2,031	$1,855	$1,826	$1,859	$2,146
	Pilots	$651	$618	$601	$670	$651	$642	$705	$722	$803	$797	$769	$596	$582	$604	$919
	Salaries and Wages	$499	$427	$411	$462	$429	$447	$484	$489	$519	$521	$448	$359	$407	$401	$617
	Pilot Training	$32	$39	$50	$49	$45	$43	$44	$37	$42	$40	$30	$23	$32	$32	$32
	Benefits and Payroll Taxes	$92	$121	$107	$122	$141	$113	$140	$162	$209	$205	$258	$178	$105	$128	$219
	Per Diem/ Personnel	$27	$30	$33	$37	$36	$39	$37	$34	$33	$31	$33	$35	$37	$43	$50
	Purchased Goods	$520	$656	$644	$555	$535	$808	$778	$708	$820	$1,161	$1,676	$1,963	$2,017	$3,415	$1,836
	Fuel/Oil	$463	$577	$567	$482	$465	$731	$704	$623	$740	$1,084	$1,581	$1,861	$1,919	$3,298	$1,822
	Insurance	$15	$15	$12	$9	$5	$4	$6	$14	$8	$6	$5	$5	$2	$3	$14
	Other (inc. Tax)	$42	$64	$65	$64	$65	$72	$68	$72	$72	$71	$89	$98	$96	$114	$0
	Maintenance	$383	$466	$469	$502	$421	$510	$698	$766	$626	$553	$573	$672	$716	$735	$680
	Labor	$38	$41	$39	$42	$32	$30	$50	$65	$48	$38	$19	$1	$1	$2	$9
	Materials	$159	$187	$159	$151	$131	$218	$218	$225	$134	$170	$121	$92	$72	$86	$75
	Third Party	$90	$131	$162	$177	$159	$161	$230	$219	$228	$175	$289	$502	$546	$519	$407
	Total Direct	$281	$359	$360	$370	$318	$408	$498	$509	$410	$383	$427	$595	$618	$607	$491
	Burden	$101	$108	$109	$132	$103	$102	$200	$257	$216	$170	$146	$77	$98	$128	$189
	Aircraft Ownership	$504	$527	$537	$531	$474	$497	$528	$530	$573	$564	$590	$479	$425	$396	$511
	Rentals	$360	$389	$392	$388	$333	$363	$375	$347	$344	$329	$328	$203	$197	$182	$132
	Depreciation and Amortization	$144	$139	$145	$143	$141	$134	$153	$183	$230	$235	$262	$276	$228	$214	$378
	Other	$4	$4	$3	$7	$5	$5	$6	$5	$6	$4	$5	$6	$4	$8	$24
	Indicies
	Aircraft In Fleet	83	92	98	104	116	118	120	131	139	144	142	135	146	141	127	-	-	-	-	-	-	-	-	-	-	-
	Seats Per Departure	163	168	171	170	168	167	164	164	169	170	171	172	172	171	170	-	-	-	-	-	-	-	-	-	-	-
	Average Stage Length	1,066	1,100	1,096	1,094	1,047	1,055	1,094	1,104	1,076	1,070	1,081	1,067	1,097	1,164	1,200	-	-	-	-	-	-	-	-	-	-	-
	Gallons of Fuel Per Block Hour	872	891	903	902	887	890	892	897	911	915	918	918	926	918	977	-	-	-	-	-	-	-	-	-	-	-
	Load Factor	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
	Daily Utilization per Aircraft
	Block Hours	11	11	11	10	11	11	10	10	9	9	10	10	10	10	10	-	-	-	-	-	-	-	-	-	-	-
	Airborne Hours	9	9	9	9	9	9	9	8	8	8	8	9	8	9	8	-	-	-	-	-	-	-	-	-	-	-
	Departures	4	4	4	4	4	4	4	3	3	3	3	4	3	3	3	-	-	-	-	-	-	-	-	-	-	-
	Widebodies	$5,264	$5,891	$5,883	$6,059	$5,605	$6,777	$6,709	$7,411	$6,982	$7,803	$8,680	$8,880	$8,271	$12,178	$7,011
	(Ex Fuel)	$3,399	$3,654	$3,746	$4,351	$3,855	$4,122	$4,235	$5,188	$4,416	$4,237	$3,888	$3,297	$3,019	$3,176	$2,307
	Pilots	$1,226	$1,219	$1,248	$1,408	$1,339	$1,303	$1,404	$1,463	$1,706	$1,605	$1,519	$1,160	$1,050	$1,091	$1,003
	Salaries and Wages	$950	$870	$896	$1,029	$938	$954	$1,010	$1,040	$1,162	$1,084	$918	$714	$733	$732	$675
	Pilot Training	$62	$77	$105	$103	$91	$86	$88	$75	$91	$80	$60	$44	$57	$55	$34
	Benefits and Payroll Taxes	$158	$219	$195	$220	$253	$202	$248	$291	$388	$378	$483	$342	$198	$234	$239
	Per Diem/ Personnel	$56	$53	$52	$56	$58	$60	$58	$57	$65	$64	$58	$59	$62	$69	$55
	Purchased Goods	$1,931	$2,308	$2,196	$1,761	$1,804	$2,714	$2,525	$2,274	$2,605	$3,600	$4,829	$5,614	$5,277	$9,034	$4,719
	Fuel/Oil	$1,865	$2,237	$2,137	$1,707	$1,750	$2,655	$2,474	$2,223	$2,567	$3,566	$4,792	$5,583	$5,253	$9,002	$4,704
	Insurance	$21	$18	$12	$10	$6	$5	$7	$16	$10	$8	$8	$8	$5	$6	$15
	Other (inc. Tax)	$45	$53	$47	$43	$48	$53	$44	$34	$28	$25	$29	$23	$19	$25	$0
	Maintenance	$1,307	$1,580	$1,670	$2,031	$1,567	$1,612	$1,727	$1,499	$1,207	$740	$1,089	$1,221	$1,123	$1,129	$742
	Labor	$150	$146	$166	$174	$131	$152	$137	$117	$62	$21	$8	$1	$1	$2	$9
	Materials	$385	$581	$539	$733	$506	$460	$401	$329	$241	$201	$186	$167	$128	$138	$83
	Third Party	$261	$383	$406	$482	$385	$431	$458	$444	$509	$347	$677	$821	$759	$715	$444
	Total Direct	$791	$1,085	$1,109	$1,374	$1,014	$1,009	$995	$890	$807	$572	$871	$941	$869	$845	$537
	Burden	$516	$496	$561	$657	$553	$603	$732	$610	$400	$185	$219	$280	$254	$306	$205
	Aircraft Ownership	$767	$741	$732	$810	$850	$1,114	$1,011	$2,049	$1,400	$1,765	$1,248	$884	$818	$900	$521
	Rentals	$604	$564	$555	$555	$556	$596	$617	$735	$870	$888	$809	$396	$340	$333	$109
	Depreciation and Amortization	$163	$177	$176	$255	$294	$517	$393	$1,314	$530	$878	$440	$488	$478	$567	$413
	Other	$33	$43	$37	$50	$45	$36	$44	$125	$63	$93	-$5	$1	$4	$24	$25
	Indicies
	Aircraft In Fleet	70	72	76	80	84	87	90	81	66	65	67	64	59	62	53	-	-	-	-	-	-	-	-	-	-	-
	Seats Per Departure	300	305	305	303	302	304	292	295	287	276	272	266	275	288	298	-	-	-	-	-	-	-	-	-	-	-
	Average Stage Length	2,832	2,894	2,934	3,040	2,997	2,978	3,027	3,241	3,513	3,577	3,579	3,475	3,497	3,612	3,844	-	-	-	-	-	-	-	-	-	-	-
	Gallons of Fuel Per Block Hour	3,178	3,185	3,179	3,175	3,168	3,151	3,098	3,190	3,178	2,979	2,868	2,743	2,571	2,481	2,439	-	-	-	-	-	-	-	-	-	-	-
	Load Factor	76.2%	78.9%	79.2%	77.0%	80.0%	81.7%	79.0%	83.6%	82.3%	86.3%	87.3%	88.1%	86.5%	85.2%	83.3%
	Daily Utilization per Aircraft
	Block Hours	11.54	11.76	11.61	10.44	10.88	11.10	10.49	9.94	10.80	11.59	11.71	11.57	12.49	11.78	11.93	-	-	-	-	-	-	-	-	-	-	-
	Airborne Hours	10.64	10.84	10.68	9.63	9.98	10.17	9.62	9.19	10.12	10.82	11.07	10.74	11.45	10.97	10.84	-	-	-	-	-	-	-	-	-	-	-
	Departures	1.93	1.93	1.88	1.64	1.72	1.76	1.64	1.47	1.50	1.57	1.58	1.60	1.71	1.56	1.50	-	-	-	-	-	-	-	-	-	-	-
	Total Fleet	$2,638	$2,880	$2,858	$2,998	$2,798	$3,319	$3,468	$3,406	$3,267	$3,705	$4,383	$4,486	$4,361	$6,369	$4,422
	(Ex Fuel)	$1,839	$1,917	$1,926	$2,228	$2,034	$2,134	$2,351	$2,468	$2,222	$2,214	$2,242	$1,965	$1,867	$1,967	$2,082
	Pilots	$766	$719	$705	$794	$772	$763	$836	$847	$930	$909	$887	$689	$648	$677	$899
	Salaries and Wages	$587	$502	$490	$560	$519	$541	$584	$582	$609	$596	$519	$416	$450	$449	$604
	Pilot Training	$38	$46	$59	$58	$53	$51	$52	$44	$49	$45	$35	$26	$36	$35	$31
	Benefits and Payroll Taxes	$105	$135	$118	$134	$157	$126	$157	$183	$233	$230	$295	$207	$121	$146	$214
	Per Diem/ Personnel	$36	$37	$39	$43	$43	$45	$44	$39	$38	$37	$38	$40	$42	$48	$49
	Purchased Goods	$852	$1,035	$1,000	$835	$828	$1,254	$1,182	$1,008	$1,110	$1,549	$2,212	$2,595	$2,568	$4,492	$2,354
	Fuel/Oil	$799	$962	$933	$770	$764	$1,185	$1,117	$938	$1,045	$1,491	$2,141	$2,521	$2,494	$4,402	$2,340
	Insurance	$10	$9	$7	$6	$4	$4	$5	$10	$6	$5	$5	$5	$3	$3	$13
	Other (inc. Tax)	$43	$63	$61	$59	$60	$66	$61	$60	$58	$54	$66	$69	$71	$88	$0
	Maintenance	$613	$707	$739	$919	$738	$752	$833	$764	$596	$532	$661	$701	$711	$748	$665
	Labor	$76	$75	$75	$80	$66	$70	$68	$67	$43	$34	$19	$1	$1	$3	$8
	Materials	$213	$268	$259	$329	$254	$248	$225	$198	$127	$147	$116	$93	$76	$89	$74
	Third Party	$114	$154	$178	$237	$189	$188	$225	$203	$213	$184	$362	$501	$510	$499	$398
	Total Direct	$384	$484	$509	$642	$497	$497	$517	$467	$380	$365	$493	$580	$577	$588	$480
	Burden	$231	$224	$231	$276	$242	$255	$316	$298	$216	$171	$172	$121	$134	$164	$185
	Aircraft Ownership	$395	$404	$399	$432	$443	$533	$595	$741	$615	$693	$620	$495	$428	$437	$481
	Rentals	$280	$273	$262	$265	$253	$284	$292	$297	$315	$320	$315	$175	$162	$160	$112
	Depreciation and Amortization	$115	$130	$138	$167	$190	$249	$303	$444	$300	$373	$305	$321	$266	$277	$370
	Other	$11	$15	$15	$18	$17	$16	$21	$45	$15	$22	$3	$5	$7	$15	$23
	Indicies
	Aircraft In Fleet	370	392	399	412	414	420	435	444	429	434	420	373	370	338	303	-	-	-	-	-	-	-	-	-	-	-
	Seats Per Departure	183	186	188	188	188	189	184	179	176	176	178	179	184	191	192	-	-	-	-	-	-	-	-	-	-	-
	Average Stage Length	846	862	882	899	905	914	928	921	915	925	961	978	1,003	1,085	1,142	-	-	-	-	-	-	-	-	-	-	-
	Gallons of Fuel Per Block Hour	1,430	1,428	1,434	1,431	1,420	1,421	1,402	1,346	1,289	1,259	1,263	1,243	1,213	1,220	1,236	-	-	-	-	-	-	-	-	-	-	-
	Load Factor	71.5%	73.1%	74.3%	73.1%	74.6%	76.6%	74.3%	77.1%	77.2%	80.2%	82.6%	84.8%	84.6%	84.8%	83.7%
	Daily Utilization per Aircraft
	Block Hours	9.56	9.50	9.56	8.73	9.49	9.67	9.12	8.69	8.67	8.83	9.00	9.40	9.42	9.49	9.22	-	-	-	-	-	-	-	-	-	-	-
	Airborne Hours	8.02	7.97	7.98	7.28	7.87	8.01	7.60	7.26	7.30	7.41	7.56	7.86	7.79	7.97	7.63	-	-	-	-	-	-	-	-	-	-	-
	Departures	4.19	4.09	4.02	3.59	3.86	3.90	3.64	3.49	3.53	3.55	3.50	3.59	3.47	3.31	3.10	-	-	-	-	-	-	-	-	-	-	-