Item 2. PROPERTIES.

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Item 2. PROPERTIES.

Fleet. As of December 31, 2024, United's mainline and regional fleets consisted of the following:


Aircraft Type	Total	Owned	Leased	Seats in Standard Configuration	Average Age (In Years)
Mainline:
777-300ER	22	22	—	350	7.0
777-200ER	55	54	1	276-362	24.8
777-200	19	19	—	364	27.5
787-10	21	21	—	318	4.2
787-9	41	34	7	257	6.7
787-8	12	12	—	243	11.5
767-400ER	16	16	—	231	23.3
767-300ER	37	37	—	167-203	28.8
757-300	21	21	—	234	22.3
757-200	40	39	1	176	27.9
737 MAX 9	85	61	24	179	2.8
737 MAX 8	107	48	59	166	1.6
737-900ER	136	136	—	179	12.0
737-900	12	12	—	179	23.3
737-800	141	130	11	166	20.8
737-700	40	38	2	126	25.8
A321neo	29	24	5	200	0.4
A320-200	79	78	1	150	25.3
A319-100	81	52	29	126	23.1
Total mainline	994	854	140		15.8


Aircraft Type	Total	Owned	Owned or Leased by Regional Carrier	Regional Carrier Operator and Number of Aircraft	Seats in Standard Configuration
Regional:
E175	217	102	115	SkyWest: 111 Mesa: 55 Republic: 51	70/76
E170	15	—	15	Republic: 15	70
CRJ900	6	—	6	Mesa: 6	76
CRJ700	17	—	17	SkyWest: 17	70
CRJ550	50	13	37	GoJet: 46 SkyWest: 4	50
CRJ200	50	—	50	SkyWest: 50	50
ERJ145XR	57	57	—	CommuteAir: 57	50
Total regional	412	172	240

In addition to the aircraft presented in the table above, United owned or leased the following regional aircraft as of December 31, 2024:

6 CRJ550s, 5 E175s and 38 ERJ145XRs that are temporarily grounded; and
8 CRJ700s awaiting conversion to CRJ550s.

Firm Order and Option Aircraft. As of December 31, 2024, United had firm commitments to purchase aircraft from Boeing and Airbus presented in the table below:


		Contractual Aircraft Deliveries			Expected Aircraft Deliveries (b)
Aircraft Type	Number of Firm Commitments (a)	2025	2026	After 2026	2025	2026	After 2026
787	147	28	17	102	9	20	118
737 MAX 8	16	16	—	—	16	—	—
737 MAX 9	138	68	70	—	28	48	62
737 MAX 10	167	—	3	164	—	—	167
A321neo	101	23	16	62	20	17	64
A321XLR	50	—	12	38	—	9	41
A350	45	—	—	45	—	—	45
(a) United also has options and purchase rights for additional aircraft.
(b) Expected aircraft deliveries reflect adjustments communicated by Boeing and Airbus or estimated by United.

The aircraft listed in the table above are scheduled for delivery through 2033. The amount and timing of the Company's future capital commitments could change to the extent that: (i) the Company and the aircraft manufacturers, with whom the Company has existing orders for new aircraft, agree to modify (or further modify) the contracts governing those orders; (ii) rights are exercised pursuant to the relevant agreements to cancel deliveries or modify the timing of deliveries; or (iii) the aircraft manufacturers are unable to deliver in accordance with the terms of those orders.

See Note 12 to the financial statements included in Part II, Item 8 of this report for additional information.

Facilities. United leases gates, hangar sites, terminal buildings and other airport facilities in the municipalities it serves. United has major terminal facility leases at SFO, IAD, ORD, LAX, DEN, EWR, IAH and GUM with expiration dates ranging from 2025 through 2056. Substantially all of these facilities are leased on a net-rental basis, resulting in the Company having financial responsibility for maintenance, insurance and other facility-related expenses and services.

United also maintains administrative, catering, cargo, training, maintenance and other facilities to support its operations in the cities it serves. In addition, United has multiple leases, which expire from 2029 through 2033, for its principal executive office and operations center in downtown Chicago and administrative offices in downtown Houston.

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