Boeing 777-300ER Seat Map & Seating Chart 2026

Aircraft

Boeing 777-300ER Seat Map

IATA · Boeing 777-300ER Boeing Wide-body

The Boeing 777-300ER is a wide-body airliner built by Boeing, listed under IATA code Boeing 777-300ER. We track 2 airlines operating it, among them American Airlines and British Airways. Cabins run from 256 to 273 seats across the 2 configurations on this page — a 17-seat spread that comes down to how much premium cabin each airline fits. Between them the operators offer first class, business class, premium economy, and economy.

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Flights tracked
2
Airlines operating
2
Seat configurations
Boeing 777-300ER
777-300ER
Configurations

Boeing 777-300ER seat map configurations

2 configurations
American Airlines logo

American Airlines

3-class · 273 seats

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Best seats · Guide

Best Seats on the Boeing 777-300ER - Seat Map Guide

- First class on the Boeing 777-300ER is the smallest cabin on the map — the front rows go first, so book early.
- Seat counts differ by 17 between operators, so row numbers from one airline's Boeing 777-300ER map will not line up with another's — open the tab for the airline you are flying.
- On a wide-body, the centre block is the one to avoid solo and the one to book as a pair — the two middle seats of a four-across row are the last to be taken.
- Exit rows and bulkhead rows carry the most legroom, at the cost of a fixed armrest or reduced recline.
- The last row ahead of the rear galley usually cannot recline — check the map before you pick it.

Aircraft Details

Manufacturer
Boeing
Model
777-300ER
IATA Code
Boeing 777-300ER
Seat Range
256 – 273

Airlines operating the Boeing 777-300ER

2 airlines — open an airline for its full seat map.

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Recent Boeing 777-300ER Flights

6 flights
British Airways logo

British Airways

BA273 · BA

LHR → SAN

Next departure: Oct 31, 2026

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British Airways logo

British Airways

BA48 · BA

SEA → LHR

Next departure: Oct 31, 2026

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American Airlines logo

American Airlines

AA72 · AA

SYD → LAX

Next departure: Oct 31, 2026

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American Airlines logo

American Airlines

AA731 · AA

LHR → CLT

Next departure: Oct 28, 2026

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American Airlines logo

American Airlines

AA39 · AA

LHR → MIA

Next departure: Oct 31, 2026

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American Airlines logo

American Airlines

AA176 · AA

HND → DFW

Next departure: Oct 20, 2026

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