Boeing 777-300ER

A twin-aisle, twin-engine long-haul jet in the Boeing 777 family: the extended-range 777-300.

As of 25 October 2026 Source: Boeing 777 specifications. Drawing is a diagram, not to exact scale.

IN LOW-COST FLEETSAs of July 2026

777-300ER aircraft in service with the low-cost airlines we list.

flown by 1 low-cost airline

1airline flies it

4%of its fleet

Source: LowFaresAirline fleet database, compiled from each airline’s published fleet figure. How we count →

Low-cost airlines flying the 777-300ER

As of July 2026Source: LowFaresAirline fleet database

Trinity Airways2 in service · 4% of fleetAs of July 2026Wikipedia fleet table

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Trinity Airways is the only low-cost airline we list whose published fleet figures name the 777-300ER.

Airlines outside our low-cost list may fly it too.

We don’t have a verified seat map for the 777-300ER yet.

We only show seat counts we can source and date. Until then, here is Boeing's own figure for reference.

BOEING TYPICAL2-class 350–425 seats

As of 25 October 2026 Source: Boeing 777 specifications

No seat map yet

As of July–August 2026777 family in the low-cost fleets we list: 5 aircraft . Source: LowFaresAirline fleet database

Which low-cost airlines fly the 777-300ER?

Trinity Airways is the only low-cost airline we list that flies it: 2 aircraft as of July 2026.

How big is the 777-300ER?

Boeing gives it as 73.9 m long, 64.8 m across the wings and a range of 13,890 km. Source: Boeing 777 specifications, read 25 October 2026.

Which other 777 family aircraft do low-cost airlines fly?

the 777-200ER (3). Each has its own page ranking the airlines that fly it.

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