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Cheap Southwest flights

LHR
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Southwest information

Discover detailed information about Southwest flights, including average fare prices, reviews, and more. Flight info is based on data from user searches last updated on 22 January 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£57

Most Popular Route

LAS to LAX

Shortest flight

1h 00m

Longest Flight

10h 15m
Flying from Dallas Love Field to Denver Intl
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Flying from Las Vegas Harry Reid Intl to Los Angeles
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Flying from Hayden Yampa Valley to Denver Intl
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Flying from Washington, D.C. Reagan-National to Miami
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Southwest Reviews

Read reviews and feedback from other travellers about their experiences with Southwest sourced from user searches. These reviews were last updated on 22 January 2026 and provide insights based on users' experiences. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Southwest
8.0
Very Good
4,267 reviews
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Overview

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Frequently asked questions about Southwest

  • What are the most popular Southwest airports?

    The most popular airports for Southwest are Dallas Love Field, Phoenix Sky Harbor Intl, and Houston Hobby according to our data. Flights to or from any of these airports should be available via Southwest year-round.

  • What is Southwest’s cheapest domestic flight?

    The cheapest domestic Southwest flight is flying Dallas Love Field to Denver Intl, which is £57. This round-trip flight has 0 stops. For a one-way domestic Southwest flight, the cheapest route is Hayden Yampa Valley to Denver Intl (0 stops) for £29.

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