What aircraft does UA948 use?

United Airlines flight UA948 operates on a Boeing 787-9 from SFO to LHR.

How long is the UA948 flight?

The estimated flight time for UA948 from SFO to LHR is approximately 11h 16m covering 8,616 km (5,354 miles).

What route does UA948 fly?

United Airlines flight UA948 operates from SFO (San Francisco International Airport) to LHR (London Heathrow Airport), connecting San Francisco 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.

UA948 Seat Map

● On time

United Airlines · Boeing 787-9 · Tue, 11 Aug 2026

Depart

SFO · San Francisco

11h 16m

5,354 mi

Arrive

LHR · London

+ Seat alert

J · Business

20/50

Y · Economy

50/202

Filter:

First Business Premium Economy Economy Extra legroom / exit Occupied Blocked

View:

Business · Economy · Rows 1–53

100%

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Get seat alerts

Top picks · Business

Highest-scoring available seats on this aircraft

12A

Score 76 #1

Window view · Easy aisle access

Aisle Business

11L

Score 76 #2

Window view · Easy aisle access

Aisle Business

11A

Score 76 #3

Window view · Easy aisle access

Aisle Business

Get Seat Alerts

UA948 Flight Details

Flight Number: UA948

Origin:

(San Francisco International Airport, San Francisco)

Destination:

(London Heathrow Airport, London)

Distance: 8,616 km (5,354 mi)

Est. Duration: 11h 16m

Flight Date: August 11, 2026

Aircraft: Boeing 787-9

Airline Routes: View United Airlines route map

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Flight Route Map

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Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: United Airlines (UA)
Aircraft: Boeing 787-9
Seating: Main Deck: 252 seats

Economy: 202

50 30 122

25% Available

Business: 50

20 30 0

40% 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

United Airlines Boeing 787-9 seat map layout for flight UA948 from SFO to LHR — Reference layout

This Boeing 787-9 operates United Airlines flight UA948 from San Francisco (SFO) 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 UA948

Based on legroom, location, and passenger preferences

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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 12A Business
Seat 11L Business
Seat 11A Business

Best Aisle Seats

Seat 12A Business
Seat 11L Business
Seat 11A Business

Quietest Seats

Seat 12A Business
Seat 11L Business
Seat 11A 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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