What aircraft does BA4603 use?

British Airways flight BA4603 operates on a Airbus A350-1000 from HND to LHR.

How long is the BA4603 flight?

The estimated flight time for BA4603 from HND to LHR is approximately 12h 29m covering 9,591 km (5,960 miles).

What route does BA4603 fly?

British Airways flight BA4603 operates from HND (Tokyo Haneda International Airport) to LHR (London Heathrow Airport), connecting Tokyo 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.

BA4603 Seat Map

● On time

British Airways · Airbus A350-1000 · Fri, 17 Apr 2026

Depart

HND · Tokyo

12h 29m

5,960 mi

Arrive

LHR · London

+ Seat alert

F · First

3/6

J · Business

47/54

W · Premium Economy

8/24

Y · Economy

136/155

Filter:

First Business Premium Economy Economy Extra legroom / exit Occupied Blocked

View:

First · Business · Premium · Economy · Rows 1–62

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Get seat alerts

Top picks · Economy

Highest-scoring available seats on this aircraft

45A

Score 68 #1

Quick exit access · Window view

Extra legroom

45C

Score 68 #2

Quick exit access · Easy aisle access

Extra legroom

45H

Score 68 #3

Quick exit access · Easy aisle access

Extra legroom

11G

Score 68 #4

Easy aisle access · Near wings (smoother ride)

Aisle Business

Get Seat Alerts

BA4603 Flight Details

Flight Number: BA4603

Origin:

(Tokyo Haneda International Airport, Tokyo)

Destination:

(London Heathrow Airport, London)

Distance: 9,591 km (5,960 mi)

Est. Duration: 12h 29m

Flight Date: April 17, 2026

Aircraft: Airbus A350-1000

Airline Routes: View British Airways route map

Award Availability: Check award seats on AwardTravelFinder

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Flight Route Map

Explore More Routes:

View flights from HND View flights to LHR View British Airways route map

Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: British Airways (BA)
Aircraft: Airbus A350-1000
Seating: Main Deck: 239 seats

Economy: 155

136 8 11

88% Available

Premium Economy: 24

8 16 0

33% Available

Business: 54

47 6 1

87% Available

First: 6

3 1 2

50% Available
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 Airbus A350-1000 seat map layout for flight BA4603 from HND to LHR — Reference layout

This Airbus A350-1000 operates British Airways flight BA4603 from Tokyo (HND) 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.

Best Seats on BA4603

Based on legroom, location, and passenger preferences

Members only

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Create a free account to see which seats have the best legroom, views, and quietest locations.

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Best Window Seats

Seat 45A Economy
Seat 45K Economy
Seat 17K Premium Economy

Best Aisle Seats

Seat 45H Economy
Seat 45C Economy
Seat 11G Business

Best for Legroom

Seat 45A Economy
Seat 45C Economy
Seat 45H Economy

Exit Row Seats

Seat 45A Economy
Seat 45C Economy
Seat 45H Economy

Quietest Seats

Seat 9D Business
Seat 9G Business
Seat 11G Business

Recommendations based on seat characteristics, cabin position, and proximity to facilities. Availability may vary by date.

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Seat Selection Assistance

Seat Alerts Require Payment

Seat alerts are available to users with a paid plan or credits. This feature monitors seat availability and notifies you when your preferred seats become available.

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