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Cheap United Airlines flights

LHR
17 Jan — 24 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 18 December 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£68

Most Popular Route

PHX to LAX

Shortest flight

0h 58m

Longest Flight

14h 58m
Flying from Los Angeles to Las Vegas Harry Reid Intl
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Flying from Phoenix Sky Harbor Intl to Los Angeles
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Flying from Cheyenne to Denver Intl
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Flying from Atlanta Hartsfield-Jackson to Calgary
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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 18 December 2025.

Wed 31/1205:20BOS - LHR
1 stop24h 30mUnited Airlines
Sat 24/113:25LHR - BOS
1 stop25h 07mUnited Airlines
Deal found £377
Fri 30/118:40BOS - LHR
1 stop20h 55mUnited Airlines
Wed 4/209:00LHR - BOS
1 stop16h 20mUnited Airlines
Deal found £378
Wed 11/309:30BOS - MAN
2 stops20h 50mUnited Airlines
Wed 25/306:10MAN - BOS
2 stops21h 47mUnited Airlines
Deal found £417

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 18 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
9,092 reviews
Check prices
Overview

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1
Pros +
  • Flight was quick and easy. (in 2447 reviews)
  • "Clean plane, organized crew." (in 2084 reviews)

Frequently asked questions about United Airlines

  • What are the most popular United Airlines airports?

    The most popular airports for United Airlines are San Francisco, Chicago O'Hare Intl, 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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