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Cheap United Airlines flights

LHR
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 16 September 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£53

Most Popular Route

IAD to MIA

Shortest flight

1h 10m

Longest Flight

14h 49m
Flying from San Francisco to Ontario
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Flying from Washington, D.C. Dulles Intl to Miami
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Flying from Corpus Christi to Houston George Bush Intcntl
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Flying from Baltimore/Washington to Guatemala City La Aurora
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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 16 September 2025.

Wed 12/1121:50BOS - LHR
1 stop32h 25mUnited Airlines
Sat 15/1109:05LHR - BOS
1 stop34h 00mUnited Airlines
Deal found £345
Mon 6/1018:15BOS - LHR
1 stop12h 30mUnited Airlines
Sun 12/1009:00LHR - BOS
1 stop13h 40mUnited Airlines
Deal found £348
Wed 29/1014:21BOS - MAN
2 stops15h 59mUnited Airlines
Wed 5/1106:10MAN - BOS
2 stops17h 38mUnited Airlines
Deal found £405

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 16 September 2025 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
8,929 reviews
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Overview

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6
Pros +
  • The flight arrived early and that was great (in 143 reviews)
  • Flight was quick and easy. (in 2395 reviews)
  • "Great crew, comfortable and clean flight." (in 2084 reviews)
Cons -
  • Customer service was very poor. (in 236 reviews)
  • I will Never fly on them Again! (in 554 reviews)
  • Dinner time flight no food. (in 5027 reviews)

Frequently asked questions about United Airlines

  • What are the most popular United Airlines airports?

    The most popular airports for United Airlines are Chicago O'Hare Intl, Newark, and San Francisco 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 San Francisco to Ontario, which is £53. This round-trip flight has 0 stops. For a one-way domestic United Airlines flight, the cheapest route is Ontario to San Francisco (0 stops) for £29.

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