United Airlines 777-300ER
22 aircraft · 350 seats · 60 Polaris · Largest in fleet · Flagship
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Overview
The Boeing 777-300ER is the largest and flagship aircraft in United's fleet — 22 aircraft, all in active service. Delivered between 2016 and 2020, they are also the newest 777s United flies. At 73.9 meters long with 350 seats and 60 Polaris lie-flat seats (the most of any United type), the 777-300ER works the airline's most prestigious long-haul routes on two GE90-115B engines — at roughly 115,000 lbf, the world's most powerful jet engine.
Seat Configuration
| Cabin | Seats | Layout |
|---|---|---|
| Polaris Business | 60 | 1-2-1 |
| Premium Plus | 24 | 2-4-2 |
| Economy Plus | 62 | 3-4-3 |
| Economy | 204 | 3-4-3 |
WiFi & In-Flight Entertainment
All 22 aircraft feature Ku-band satellite WiFi, seatback AVOD plus personal-device entertainment, and 110V AC power. United's 777 fleet led the airline's widebody Starlink rollout, which began June 22, 2026 with flight UA14 from Newark (EWR) to London Heathrow — United's first transatlantic Starlink service. Starlink is free for MileagePlus members, and United plans to equip its full widebody fleet by summer 2027.
Routes & Hubs
- San Francisco (SFO) — Hong Kong and Sydney
- Newark (EWR) — Dubai, Tel Aviv, and London
The flagship 777-300ER concentrates on United's premium long-haul international markets, with a range of about 7,370 nautical miles.
Related Aircraft
777-200ER (55) and 777-200 (19) are the smaller 777 variants.
Specifications
Key technical specifications for the Boeing 777-300ER as operated by United Airlines.
| Manufacturer | The Boeing Company |
|---|---|
| Model | 777-300ER |
| Body type | Wide-body |
| Engines | 2x GE90-115B (most powerful jet engine) |
| Range | 7,370 nmi (13,650 km) |
| Cruise speed | Mach 0.84 |
| Wingspan | 64.8 m (213 ft) |
| Length | 73.9 m (242 ft) |
Aircraft Registry — All 22 Boeing 777-300ER
Complete list of every United Airlines Boeing 777-300ER with registration, delivery year, seat configuration, WiFi, IFE, and current status, from public aviation records — as of .
| Reg | AC# | Config | WiFi | IFE | Power | Year | Status |
|---|---|---|---|---|---|---|---|
| N2135U | 2135 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2017 | Active |
| N2136U | 2136 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2017 | Active |
| N2138U | 2138 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2017 | Active |
| N2140U | 2140 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2017 | Active |
| N2142U | 2142 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2017 | Active |
| N2243U | 2143 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2017 | Active |
| N2250U | 2150 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2019 | Active |
| N2251U | 2151 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2020 | Active |
| N2331U | 2131 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2016 | *New Spirit of UA |
| N2332U | 2132 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2016 | Active |
| N2333U | 2133 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2017 | Active |
| N2341U | 2141 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2017 | Active |
| N2352U | 2152 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2020 | Active |
| N2534U | 2134 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2017 | Active |
| N2639U | 2139 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2017 | Active |
| N2644U | 2144 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2017 | Active |
| N2645U | 2145 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2018 | Active |
| N2737U | 2137 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2017 | Active |
| N2747U | 2147 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2018 | Active |
| N2748U | 2148 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2018 | Active |
| N2749U | 2149 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2019 | Active |
| N2846U | 2146 | 60J/24PE/62E+/204Y | Satellite Ku | AVOD/PDE | 110 V | 2018 | Active |
Frequently Asked Questions
How many Boeing 777-300ER aircraft does United Airlines have?
United operates 22 Boeing 777-300ERs, delivered 2016–2020 — the largest and newest jets in its fleet, and all remain in active service.
What is the seat configuration on United's 777-300ER?
350 passengers: 60 Polaris (1-2-1), 24 Premium Plus (2-4-2), 62 Economy Plus (3-4-3), 204 Economy (3-4-3).
Does the United 777-300ER have Polaris business class?
Yes. 60 Polaris lie-flat seats in 1-2-1 configuration — the most Polaris seats of any United aircraft type.
What is the largest aircraft in United Airlines' fleet?
The Boeing 777-300ER at 73.9 meters (242 feet) long with 350 seats across four cabin classes.
What engines power the United 777-300ER?
Two GE90-115B engines, each producing about 115,000 pounds of thrust — the world's most powerful jet engine and the only factory-fit GE powerplant on a United 777.
What routes does United fly the 777-300ER on?
Flagship long-haul international from San Francisco (SFO to Hong Kong and Sydney) and Newark (EWR to Dubai, Tel Aviv, and London).
All United Fleet Types
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