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Cheap Southwest flights

LHR
4 May — 11 May1
1 adult

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

Cheapest Route

£73

Most Popular Route

PHX to LAX

Shortest flight

0h 45m

Longest Flight

10h 20m
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 Lihue to Honolulu
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Flying from Indianapolis to Atlanta Hartsfield-Jackson
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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 29 April 2025 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
4,295 reviews
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Overview

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Crew

8.6

Food

7.1
Pros +
  • Really funny flight attendant. (in 563 reviews)
  • "Very smooth flight, no issues." (in 554 reviews)
  • Flight was early and smooth. (in 547 reviews)
Cons -
  • Arrived ten minutes early! (in 42 reviews)
  • "Legroom, free wifi" (in 156 reviews)
  • A on time flight. (in 833 reviews)

Frequently asked questions about Southwest

  • What are the most popular Southwest airports?

    The most popular airports for Southwest are Denver Intl, Dallas Love Field, 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 Los Angeles to Las Vegas Harry Reid Intl, which is £73. This round-trip flight has 0 stops. For a one-way domestic Southwest flight, the cheapest route is San Jose to San Diego (0 stops) for £37.

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