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Cheap United Airlines flights

LHR
4 May — 11 May1
1 adult

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

Cheapest Route

£43

Most Popular Route

ONT to SFO

Shortest flight

0h 56m

Longest Flight

12h 11m
Flying from Ontario to San Francisco
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Flying from Ontario to San Francisco
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Flying from Cheyenne to Denver Intl
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Flying from Chicago O'Hare Intl to Calgary
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Find United Airlines flight deals

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 29 April 2025.

Wed 1/1007:00CMH - EDI
1 stop20h 25mUnited Airlines
Fri 10/1012:30EDI - CMH
1 stop11h 31mUnited Airlines
Deal found £559
Wed 13/807:00CMH - LHR
2 stops18h 55mUnited Airlines
Tue 19/814:05LHR - CMH
2 stops25h 26mUnited Airlines
Deal found £570
Wed 21/509:20CMH - MAN
2 stops19h 35mUnited Airlines
Sat 14/611:35MAN - CMH
2 stops32h 48mUnited Airlines
Deal found £826

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 29 April 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
8,696 reviews
Check prices
Overview

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Crew

8.1
Pros +
  • "Everything was cool, smooth flight." (in 2442 reviews)
  • The flight arrived early and that was great (in 143 reviews)
  • Flight was quick and easy. (in 2395 reviews)
Cons -
  • Customer service was very poor. (in 236 reviews)
  • I will Never fly on them Again! (in 554 reviews)
  • Entertainment wasn’t working well at all (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 San Francisco, Newark, 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 Ontario to San Francisco, which is £43. This round-trip flight has 0 stops. For a one-way domestic United Airlines flight, the cheapest route is San Francisco to San Diego (0 stops) for £22.

  • What is United Airlines’s cheapest international flight?

    The least expensive round-trip international United Airlines flight is: -Los Angeles to Vancouver Intl, -1 stop, -£131 per ticket United Airlines has international one-way flights available, but the cheapest is a flight from San Francisco to Vancouver Intl for just £48. This flight has 0 stops.

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