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Cheap United Airlines flights

LHR
24 Aug — 31 Aug1
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 25 July 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£73

Most Popular Route

RNO to LAX

Shortest flight

0h 49m

Longest Flight

16h 07m
Flying from Los Angeles Los Angeles to Las Vegas Harry Reid Intl
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Flying from Reno to Los Angeles Los Angeles
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Flying from Denver Intl to Cheyenne
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Flying from Los Angeles Los Angeles to Vancouver 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 25 July 2026.

Wed 26/806:00
BOS
-
LHR
1 stop9h 40m
United Airlines
Thu 27/812:10
LHR
-
BOS
1 stop12h 45m
United Airlines
Deal found £497
Thu 3/906:00
BOS
-
LHR
1 stop9h 40m
United Airlines
Fri 4/912:10
LHR
-
BOS
1 stop12h 45m
United Airlines
Deal found £498
Tue 11/806:00
BOS
-
EDI
1 stop21h 05m
United Airlines
Thu 20/809:15
EDI
-
BOS
1 stop29h 30m
United Airlines
Deal found £597

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 25 July 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
10,000 reviews
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Overview

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Frequently asked questions about United Airlines

  • What are the most popular United Airlines airports?

    The most popular airports for United Airlines are San Francisco, Denver Intl, and Los Angeles 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 Los Angeles to Las Vegas Harry Reid Intl, which is £73. This round-trip flight has 0 stops. For a one-way domestic United Airlines flight, the cheapest route is Lambert-St Louis to Chicago O'Hare Intl (0 stops) for £37.

  • What is United Airlines’s cheapest international flight?

    The least expensive round-trip international United Airlines flight is: -Vancouver Intl to Los Angeles Los Angeles, -0 stops, -£113 per ticket United Airlines has international one-way flights available, but the cheapest is a flight from Los Angeles Los Angeles to Vancouver Intl for just £57. This flight has 0 stops.

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