What aircraft does BA12 use?

British Airways flight BA12 operates on a Boeing 777-300ER from SIN to LHR.

How long is the BA12 flight?

The estimated flight time for BA12 from SIN to LHR is approximately 14h 6m covering 10,883 km (6,763 miles).

What route does BA12 fly?

British Airways flight BA12 operates from SIN (Singapore Changi Airport) to LHR (London Heathrow Airport), connecting Singapore and London.

How do I choose the best seat?

The best seat depends on your priorities. For extra legroom, choose seats near emergency exits or bulkhead rows. For quick boarding/deplaning, select seats near the front. Avoid seats near lavatories or galleys if you prefer a quieter flight. Window seats offer views and a wall to lean against, while aisle seats provide easier access to move around.

What do the different seat colors mean?

Green seats are typically available for selection, red seats are occupied or blocked, yellow/orange seats may have restrictions or extra fees, and blue seats often indicate premium or preferred seating with additional charges. Hover over any seat to see specific details and pricing.

Can I change my seat after booking?

Yes, most airlines allow seat changes after booking, though fees may apply depending on your fare type and desired seat. You can typically change seats through the airline's website, mobile app, or by calling customer service. Some seats become available closer to departure as the airline releases blocked inventory.

When is the best time to select seats?

The best time varies by strategy. Book immediately after purchasing your ticket for the widest selection, or wait until 24 hours before departure when airlines often release blocked premium seats. For popular routes, early selection is recommended. Our seat alerts can notify you when preferred seats become available.

Are the seat maps updated in real-time?

Our flight seat maps are updated regularly throughout the day to reflect current availability. However, seat availability can change rapidly, especially close to departure. We recommend checking the airline's official website for the most up-to-date information when making your final selection.

What if my preferred seat isn't available?

You can also check back periodically as seats often open up closer to departure when other passengers make changes or when the airline releases additional inventory.

BA12 Seat Map

● On time

British Airways · Boeing 777-300ER · Sat, 31 Oct 2026

Depart

SIN · Singapore

14h 6m

6,763 mi

Arrive

LHR · London

+ Seat alert

F · First

0/14

J · Business

0/97

W · Premium Economy

0/55

Y · Economy

0/303

Filter:

First Business Premium Economy Economy Extra legroom / exit Occupied Blocked

View:

Seat layout via AwardTool

First · Business · Premium · Economy · Rows 1–83 · 2 decks

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BA12 Flight Details

Flight Number: BA12

Origin:

(Singapore Changi Airport, Singapore)

Destination:

(London Heathrow Airport, London)

Distance: 10,883 km (6,763 mi)

Est. Duration: 14h 6m

Flight Date: October 31, 2026

Aircraft: Boeing 777-300ER

Airline Routes: View British Airways route map

Award Availability: Check award seats on AwardTravelFinder

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Flight Route Map

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Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: British Airways (BA)
Aircraft: Boeing 777-300ER
Seating: Upper Deck: 212 seats

Economy: 104

Premium Economy: 55

Business: 53

Main Deck: 257 seats

Economy: 199

Business: 44

First: 14
Legend: Seat Status

Blocked

Occupied

Standard

Cabin Classes

First

Business

Premium Economy

Economy

Extra legroom / exit

Features

Exit door

WC Lavatory

GALLEY Galley

CREW Crew area

British Airways Boeing 777-300ER seat map layout for flight BA12 from SIN to LHR — Reference layout

This Boeing 777-300ER operates British Airways flight BA12 from Singapore (SIN) to London (LHR). Browse the interactive seat map above to find the best seats for your journey, view real passenger reviews, and explore detailed cabin configurations to make an informed decision for your flight.

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Seat Selection Assistance

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Reviews

Passenger Reviews for BA12

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Boeing 777-300ER Seat Map

Full British Airways Boeing 777-300ER seating chart, cabin layout, and seat reviews.

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Questions

Frequently Asked Questions

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