Cheap United Airlines flights

LHR
2 Jan — 9 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 3 December 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£69

Most Popular Route

RNO to LAX

Shortest flight

1h 00m

Longest Flight

20h 44m
Flying from San Francisco to Phoenix Sky Harbor Intl
Flying from Reno to Los Angeles
Flying from Cheyenne to Denver Intl
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 3 December 2025.

Sat 14/218:40BOS - LHR
1 stop20h 55mUnited Airlines
Sun 1/309:00LHR - BOS
2 stops35h 12mUnited Airlines
Deal found £384
Thu 26/206:00BOS - LHR
1 stop9h 35mUnited Airlines
Wed 11/309:00LHR - BOS
1 stop16h 20mUnited Airlines
Deal found £385
Thu 15/110:30BOS - MAN
2 stops18h 50mUnited Airlines
Thu 22/106:10MAN - BOS
2 stops17h 47mUnited Airlines
Deal found £440

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 3 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
9,063 reviews
Overview

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6
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, Los Angeles, 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 Phoenix Sky Harbor Intl, which is £69. This round-trip flight has 0 stops. For a one-way domestic United Airlines flight, the cheapest route is Atlanta Hartsfield-Jackson to Newark (0 stops) for £30.

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