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Cheap United Airlines flights

LHR
4 Mar — 11 Mar1
1 adult
1 adult, Economy, 0 bags

United Airlines information

Discover detailed information about United Airlines flights, including average fare prices, reviews, and more. Flight info is based on data from user searches last updated on 2 February 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£66

Most Popular Route

SFO to LAX

Shortest flight

1h 05m

Longest Flight

18h 05m
Flying from Los Angeles to Sacramento Intl
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Flying from San Francisco to Los Angeles
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Flying from Washington, D.C. Dulles Intl to Morgantown
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Flying from Newark to Comayagua Palmerola Intl
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Cheapest United Airlines flights
Explore the most affordable United Airlines flight options available. Find the lowest fares based on data from user searches, with prices last updated on 2 February 2026.

Mon 2/318:40
BOS
-
LHR
1 stop31h 30m
United Airlines
Thu 5/306:35
LHR
-
BOS
1 stop17h 00m
United Airlines
Deal found £358
Sat 21/216:15
BOS
-
LHR
2 stops12h 50m
United Airlines
Mon 23/209:05
LHR
-
BOS
1 stop34h 00m
United Airlines
Deal found £359
Sun 29/309:30
BOS
-
EDI
1 stop20h 05m
United Airlines
Fri 10/409:00
EDI
-
BOS
2 stops33h 29m
United Airlines
Deal found £403

United Airlines Reviews

Read reviews and feedback from other travellers about their experiences with United Airlines sourced from user searches. These reviews were last updated on 2 February 2026 and provide insights based on users' experiences. In the last 7 days, Cheapflights users made a total of 858,174 searches.
United Airlines
7.4
Good
9,225 reviews
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Overview

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

Frequently asked questions about United Airlines

  • What are the most popular United Airlines airports?

    The most popular airports for United Airlines are Los Angeles, San Francisco, and Chicago O'Hare Intl according to our data. Flights to or from any of these airports should be available via United Airlines year-round.

  • What is United Airlines’s cheapest domestic flight?

    The cheapest domestic United Airlines flight is flying Los Angeles to Sacramento Intl, which is £66. This round-trip flight has 0 stops. For a one-way domestic United Airlines flight, the cheapest route is Sacramento Intl to Los Angeles (0 stops) for £34.

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