Boeing

Boeing 777-300ER

77W B77W Out of Production

Dimensions

Length: 73.86 m
Wingspan: 64.80 m
Height: 18.50 m
Cabin Width: 5.87 m

Performance

Range: 13650 km
Cruise Speed: 905 km/h
Max Speed: 950 km/h
Service Ceiling: 13100 m
Category: ultra-long-haul

Capacity

Typical Seats: 365
Max Seats: 550
Cargo Volume: 200.00 m³
Size: wide-body

Engines

Count: 2
Type: Turbofan
Model: GE90-115BL

Airlines (26)

Qatar Airways 30 Aeroflot Russian Airlines 21 Korean Air 13 Cathay Pacific 12 Swiss International Air Lines 11 Air France 10 United Airlines 10 American Airlines 8 China Eastern Airlines 7 British Airways 7 Turkish Airlines 5 Air China 5 Ethiopian Airlines 4 Egyptair 4 Air India Limited 4 All Nippon Airways 4 Philippine Airlines 3 Rossiya 2 EVA Air 2 Etihad Airways 2 Air New Zealand 1 Saudi Arabian Airlines 1 Emirates 1 China Southern Airlines 1 Air Austral 1 Kenya Airways 1

Family Variants

Boeing 777-200ER Boeing 777-300 Boeing 777-9 Boeing 777-200LR Boeing 777-200

Engine Profiles

GE Aerospace GE90

Aircraft Systems

飞行管理系统（FMS）玻璃座舱系统平视显示器（HUD）气象雷达系统空中防撞系统（TCAS）仪表着陆系统（ILS）增强型近地警告系统（EGPWS）飞行数据记录器（FDR）驾驶舱话音记录器（CVR）客舱增压系统

About Boeing 777-300ER

长途航空业的旗舰机型，将777-300的运量与超长航程相结合。阿联酋航空运营逾140架，是任何一款宽体机型的最大运营商。

Frequently Asked Questions

The Boeing 777-300ER typically seats 365 passengers in a standard three-class configuration. In a two-class layout, it can carry up to 396 passengers, and high-density single-class configurations can hold up to 550 passengers. The cabin is 5.87 m wide, one of the widest among twin-engine aircraft, allowing a spacious 3-3-3 arrangement in economy or 3-4-3 in high-density layouts.

The Boeing 777-300ER has a maximum range of approximately 13,650 km (7,370 nautical miles). This allows it to operate demanding long-haul routes such as Dubai to Los Angeles, Singapore to San Francisco, or Hong Kong to New York. The ER (Extended Range) designation indicates additional fuel capacity and the powerful GE90-115B engines, the most powerful turbofan engines ever to enter commercial service.

The Boeing 777-300ER is powered exclusively by General Electric GE90-115B engines, each producing up to 513 kN (115,300 lbf) of thrust. The GE90-115B holds the Guinness World Record for the most powerful commercial jet engine, having achieved 569 kN during testing. The engine's fan diameter of 3.25 m is so large that it is wider than the fuselage of a Boeing 737.

Emirates operates the world's largest 777-300ER fleet with over 130 aircraft, making it the cornerstone of the airline's long-haul network. Other major operators include Singapore Airlines, Cathay Pacific, Air France, Korean Air, and Qatar Airways. The 777-300ER has been the preferred long-haul workhorse for many premium carriers, with over 800 aircraft delivered since it entered service in 2004.

The 777-300ER is a larger and heavier aircraft than the A350-900, carrying about 65 more passengers in typical three-class layouts (365 vs 300). However, the A350-900 offers approximately 25% lower fuel burn per seat due to its composite airframe and newer-generation Trent XWB engines. The 777-300ER remains popular for its proven reliability and high-density routes, while the A350-900 is increasingly chosen for efficiency on medium-density long-haul sectors.