Item 2. Properties
ITEM 2. PROPERTIES.
Fleet. As of December 31, 2023, 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 6.0
777-200ER 55 54 1 276-362 23.8
777-200 19 19 — 364 26.5
787-10 21 21 — 318 3.2
787-9 38 34 4 257 6.3
787-8 12 12 — 243 10.5
767-400ER 16 16 — 231 22.3
767-300ER 37 37 — 167-203 27.8
757-300 21 21 — 234 21.3
757-200 40 39 1 176 26.9
737 MAX 9 79 63 16 179 2.0
737 MAX 8 80 34 46 166 1.0
737-900ER 136 136 — 179 11.0
737-900 12 10 2 179 22.3
737-800 141 119 22 166 19.8
737-700 40 38 2 126 24.8
A321neo 4 4 — 200 0.1
A320-200 91 81 10 150 24.9
A319-100 81 52 29 126 22.1
Total mainline 945 812 133 16.0
Aircraft Type Total Owned Owned or Leased by Regional Carrier Regional Carrier Operator and Number of Aircraft Seats in Standard Configuration
Regional:
Embraer E175/E175LL 189 73 116 SkyWest:
Mesa:
Republic: 90
54
45 70/76
Embraer 170 21 — 21 Republic: 21 70
CRJ900 26 — 26 Mesa: 26 76
CRJ700 19 — 19 SkyWest: 19 70
CRJ550 35 2 33 GoJet: 35 50
CRJ200 70 — 70 SkyWest: 70 50
Embraer ERJ 145XR 53 53 — CommuteAir: 53 50
Total regional 413 128 285
35
Table of Contents
In addition to the aircraft presented in the table above, United owned or leased the following regional aircraft as of December 31, 2023:
• 24 CRJ550s, 26 E175/E175LLs and 45 Embraer ERJ 145s that were temporarily grounded; and
• 8 CRJ700s awaiting conversion to CRJ550s.
Firm Order and Option Aircraft. As of December 31, 2023, 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) 2024 2025 After 2025 2024 2025 After 2025
787 150 8 18 124 7 18 125
737 MAX 8 43 43 — — 37 6 —
737 MAX 9 34 34 — — 19 15 —
737 MAX 10 277 80 71 126 — (c) (c)
A321neo 126 26 38 62 25 24 77
A321XLR 50 — 8 42 — 1 49
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.
(c) Due to the delay in the certification of the 737 MAX 10 aircraft, we are unable to accurately forecast the expected delivery period.
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 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 2024 through 2053. 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.