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Cheap United Airlines flights

LHR
7 Feb — 14 Feb1
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 8 January 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£57

Most Popular Route

IAD to MIA

Shortest flight

1h 20m

Longest Flight

11h 48m
Flying from Denver Intl to San Diego
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Flying from Washington, D.C. Dulles Intl to Miami
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Flying from Las Vegas Harry Reid Intl to Los Angeles
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Flying from Providence-TFGreen to Raleigh-Durham
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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 8 January 2026.

Sun 25/105:30BOS - LHR
1 stop20h 40mUnited Airlines
Sat 7/206:35LHR - BOS
1 stop17h 00mUnited Airlines
Deal found £371
Sat 14/206:00BOS - LHR
1 stop9h 35mUnited Airlines
Thu 19/211:10LHR - BOS
1 stop12h 25mUnited Airlines
Deal found £371
Wed 4/209:30BOS - MAN
2 stops19h 50mUnited Airlines
Wed 11/206:10MAN - BOS
2 stops17h 22mUnited Airlines
Deal found £393

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 8 January 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
9,139 reviews
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Overview

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.1

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 Denver Intl to San Diego, which is £57. This round-trip flight has 0 stops. For a one-way domestic United Airlines flight, the cheapest route is San Francisco to Las Vegas Harry Reid Intl (0 stops) for £29.

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