Boeing 777-9 (777X): Specs, Range, Wingspan & History | ICCJET

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Aircraft encyclopedia · Boeing

Boeing 777-9: Specifications, Range and History

The Boeing 777-9 is the larger of the two 777X passenger models. It keeps the 777 fuselage cross-section but adds a new composite wing of 71.76 m with folding tips, the GE9X engine and a longer fuselage: 76.73 m, the longest Boeing airliner.

Boeing launched the 777X at the Dubai Airshow in November 2013 with 259 orders and commitments. The 777-9 first flew on 25 January 2020. Certification flight testing continues in 2026, and first delivery, to Lufthansa, is expected in 2027.

76.73 m
Length
71.76 m
Wingspan
about 426
Seats
7,285 nm
Range
2027
First delivery expected

At a glance

777-9 at a glance

Class Long-range, twin-engine widebody airliner
Best for High-capacity long-haul routes, replacing the 777-300ER and four-engine aircraft
Passengers about 426 typical, per Boeing
Flight crew 2 pilots
Status In certification flight testing (October 2026)
Compare with Airbus A350-1000, 777-300ER

Size

Dimensions

Length 76.73 m (251 ft 9 in)
Wingspan 71.76 m (235 ft 5 in); 64.84 m with tips folded
Folding wingtip about 3.5 m each side
Height 19.53 m (64 ft 1 in)
Fuselage width 6.20 m
Wing area 516.7 m², carbon-fibre composite

Range and speed

Performance

Range 7,285 nm (13,500 km), Boeing figure

Weights

Weights

Maximum takeoff weight 351.5 t (775,000 lb)
Usable fuel 197,356 L (52,136 US gal)

Equipment

Equipment and main systems

What is installed on the 777-9, which other versions exist and where the same equipment flies.

Engines

On the 777-9
2 x General Electric GE9X, about 110,000 lbf each, with the largest fan of any airliner engine
Other aircraft
The GE9X is built only for the 777X family; it follows the GE90-115B of the 777-300ER

Wing

On the 777-9
New carbon-fibre composite wing of 516.7 m², with folding tips of about 3.5 m
Why folding
The tips fold on the ground so the aircraft fits gates built for the 777-300ER

Fuselage

Cross-section
The 777 cross-section, 6.20 m outside, with a wider cabin than earlier 777s through thinner sidewalls
Length
76.73 m, the longest Boeing airliner

The 777X family

777-9 76.73 m long, about 426 seats, 7,285 nm. First delivery expected 2027
777-8 Shorter, longer-range passenger model; length increased to 70.87 m in 2023. No delivery date announced
777-8F Freighter, launched 31 January 2022 with Qatar Airways, first deliveries expected 2028

Figures are manufacturer data for an aircraft still in certification and may change. ICCJET checks the specification of each delivery position.

History

History and production

Launched November 2013, Dubai Airshow: 259 orders and commitments
GE9X selected March 2013
First flight 25 January 2020, Everett
Certification FAA TIA phase 3 approved November 2025, phase 4A March 2026, phase 4B June 2026
First delivery Expected 2027, Lufthansa
Orders 619 for the 777X family (November 2025)

Family comparison

777-9 vs 777-300ER

777-9

Length76.73 m
Wingspan71.76 m
Seatsabout 426
Range7,285 nm
Engines2 x GE9X

777-300ER

Length73.9 m
Wingspan64.8 m
Seats392, 2-class
Range7,370 nm
Engines2 x GE90-115B

Rivals

777-9 vs Airbus A350-1000

777-9

Length76.73 m
Seatsabout 426
Range7,285 nm
Max takeoff weight351.5 t
StatusFirst delivery 2027

Airbus A350-1000

Length73.78 m
Seats375 to 400, 3-class
Rangeup to 9,100 nm
Max takeoff weightup to 324 t
StatusIn service since 2018

The 777-9 is the larger aircraft and carries more passengers. The A350-1000 is lighter, flies farther and has been in service since 2018.

Seat counts are quoted in different cabin layouts, so compare them as a guide, not like for like.

Routes

Three nonstop routes in range

Istanbul to São Paulo

AirportsIST to GRU
Distance5,702 nm
Still-air timeabout 11.6 h

Istanbul to Los Angeles

AirportsIST to LAX
Distance5,941 nm
Still-air timeabout 12.1 h

Dubai to Miami

AirportsDXB to MIA
Distance6,807 nm
Still-air timeabout 13.9 h

Calculated great-circle distances and still-air times at 490 kn. Real flights depend on winds, payload, routing and fuel reserves. Check any route in the ICCJET Aircraft Route Planner.

FAQ

Boeing 777-9: questions

When will the Boeing 777-9 enter service?

First delivery, to Lufthansa, is expected in 2027.

How long is the 777-9?

76.73 m, the longest Boeing airliner.

What is the wingspan of the 777-9?

71.76 m in flight and 64.84 m with the wingtips folded on the ground.

What engines does the 777-9 use?

Two GE9X turbofans of about 110,000 lbf each.

What is the difference between the 777-9 and the 777-8?

The 777-8 is shorter and designed for longer range; the 777-8F is its freighter version, with deliveries expected in 2028.

Is the 777X the same as the 777-9?

777X is the family name. The 777-9 is the larger passenger model; the 777-8 and 777-8F are the others.

Charter

Charter a long-haul airliner

Need the cabin before you buy one? ICCJET arranges charter of business jets, group airliners and cargo aircraft.

Istanbul

AirportsIST · SAW · ISL

Kazakhstan

AirportsALA · NQZ · CIT · GUW

International

DeparturesWorldwide on request

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Specifications are published reference figures. Individual aircraft vary by configuration and modifications. Page checked 16 October 2026.