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Cheap Frontier flights

LHR
27 Mar — 3 Apr1
1 adult
1 adult, Economy, 0 bags

Frontier information

Discover detailed information about Frontier flights, including average fare prices, reviews, and more. Flight info is based on data from user searches last updated on 25 February 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£37

Most Popular Route

PHX to LAX

Shortest flight

1h 17m

Longest Flight

27h 10m
Flying from San Diego to Denver Intl
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Flying from Phoenix Sky Harbor Intl to Los Angeles
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Flying from Burbank Bob Hope to Las Vegas Harry Reid Intl
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Flying from Charlotte Douglas to San Diego
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Frontier Reviews

Read reviews and feedback from other travellers about their experiences with Frontier sourced from user searches. These reviews were last updated on 25 February 2026 and provide insights based on users' experiences. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Frontier
5.7
Fair
3,041 reviews
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Overview

Comfort

5.5

Crew

6.6

Entertainment

4.3

Food

4.6

Boarding

6.0

Frequently asked questions about Frontier

  • What are the most popular Frontier airports?

    The most popular airports for Frontier are Philadelphia, Orlando, and Tampa according to our data. Flights to or from any of these airports should be available via Frontier year-round.

  • What is Frontier’s cheapest domestic flight?

    The cheapest domestic Frontier flight is flying San Diego to Denver Intl, which is £37. This round-trip flight has 0 stops. For a one-way domestic Frontier flight, the cheapest route is Denver Intl to El Paso (0 stops) for £16.

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