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Cheap United Airlines flights

LHR
11 Jan — 18 Jan1
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 12 December 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£68

Most Popular Route

SMF to LAX

Shortest flight

0h 55m

Longest Flight

25h 45m
Flying from Los Angeles to Las Vegas Harry Reid Intl
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Flying from Sacramento Intl to Los Angeles
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Flying from Denver Intl to Cheyenne
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Flying from Atlanta Hartsfield-Jackson to Edmonton
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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 12 December 2025.

Wed 31/1205:20BOS - LHR
1 stop24h 30mUnited Airlines
Mon 12/113:25LHR - BOS
1 stop25h 07mUnited Airlines
Deal found £376
Sun 8/315:35BOS - LHR
1 stop11h 35mUnited Airlines
Thu 19/313:45LHR - BOS
1 stop11h 35mUnited Airlines
Deal found £379
Sun 22/306:00BOS - MAN
2 stops24h 20mUnited Airlines
Tue 31/310:35MAN - BOS
1 stop12h 05mUnited Airlines
Deal found £406

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 12 December 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
9,095 reviews
Check prices
Overview

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1
Pros +
  • Flight was quick and easy. (in 2447 reviews)
  • Crew was pretty cool. (in 2084 reviews)
Cons -
  • Have the middle seats vacant. (in 137 reviews)
  • The space in economy plus. (in 296 reviews)
  • Also no entertainment (in 1245 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, San Francisco, and Los Angeles 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 Las Vegas Harry Reid Intl, which is £68. This round-trip flight has 0 stops. For a one-way domestic United Airlines flight, the cheapest route is Las Vegas Harry Reid Intl to Los Angeles (0 stops) for £34.

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