Boeing 777-300ER
Wide-body, long-range, twin-engine commercial jet
The Boeing 777-300ER (Extended Range) is the most-produced variant of the 777 family — a long-range, ultra-large twin-engine widebody that became the backbone of long-haul fleets at Emirates, Air France, Cathay Pacific, and dozens of others. Its GE90-115B engines remain the most powerful turbofans ever certified.
Specifications
| First flight | 2003-02-24 |
|---|---|
| Entered service | 2004-04-29 |
| Production | 2004–present (winding down as 777X enters service) |
| Crew | 2 (flight deck) |
| Capacity | 365 (3-class) to 550 (high-density) |
| Length | 0 m |
| Wingspan | 0 m |
| Height | 0 m |
| MTOW | 0 kg |
| Max speed | 0 km/h |
| Cruise speed | 0 km/h |
| Range | 0 km |
| Service ceiling | 0 m |
| Engines | 2 × General Electric GE90-115B (the most powerful jet engine in service) |
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History
Boeing launched the 777-300ER in February 2000 to give airlines a 747-class long-range alternative with twin-engine economics. First flight took place in February 2003; Air France took the launch delivery in April 2004. Within a decade the -300ER had displaced the 747-400 from many flagship long-haul routes, with Emirates building a fleet of more than 130 aircraft. The variant also enabled the rise of ultra-long-haul routes like Dubai–Los Angeles and Hong Kong–New York. Production is winding down as the 777-9 (777X) enters service.
Design
Compared with the original 777-300, the -ER added 6.6 m of additional fuselage length, raked wingtips for reduced drag, strengthened landing gear, additional fuel capacity in the horizontal tail trim tank, and the GE90-115B exclusively. The engines produce up to 115,000 lbf of thrust each — sufficient that the type's ETOPS-330 certification effectively means a single engine can keep the aircraft in the air for over five hours of diversion time.
Variants
- 777-300 (original, no -ER, limited range)
- 777-300ER (extended range, dominant variant)
- 777-300ERSF (cargo conversion)
- BBJ 777-300ER (VIP transport)
Notable operators
- Emirates (largest operator)
- Air France
- Cathay Pacific
- Korean Air
- Singapore Airlines
- Qatar Airways
- Saudia
- United Airlines
- American Airlines
Notable
The 777-300ER's GE90-115B holds the FAA-certified thrust record. The aircraft was central to ETOPS regulatory expansion — when twin-engine widebodies first carried passengers across full-ocean crossings, regulators demanded they prove single-engine reliability comparable to four-engine jets. The -300ER's track record made ETOPS-330 standard and effectively ended the case for new four-engine commercial aircraft.
See also
Sources
Last updated: 2026-05-06