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Cheap Frontier flights

LHR
20 Jul — 27 Jul1
1 adult

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

Cheapest Route

£39

Most Popular Route

LAS to LAX

Shortest flight

0h 43m

Longest Flight

9h 39m
Flying from Las Vegas Harry Reid Intl to Los Angeles
Flying from Las Vegas Harry Reid Intl to Los Angeles
Flying from San Juan Luis Munoz Marin Intl to Christiansted Henry Rohlsen
Flying from Omaha Eppley Airfield to Miami

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International Frontier flights
Search for international Frontier flight options. Find affordable international airfare based on user searches. Data last updated 15 July 2025.

Thu 28/811:24BOS - SJU
2 stops12h 30mFrontier
Wed 3/901:11SJU - BOS
1 stop7h 32mFrontier
Deal found £260

Frontier Reviews

Read reviews and feedback from other travellers about their experiences with Frontier sourced from user searches. These reviews were last updated on 15 July 2025 and provide insights based on users' experiences. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Frontier
5.9
Fair
3,260 reviews
Overview

Boarding

6.2

Entertainment

4.5

Crew

6.8

Comfort

5.6

Food

4.7
Pros +
  • "Clean, on time, reasonable." (in 763 reviews)
  • Smooth flight excellent landing (in 1876 reviews)
  • "Boarding was good, crew was friendly" (in 1649 reviews)
Cons -
  • On time not crowded. (in 1257 reviews)
  • On the ticket it said checked bag. (in 1044 reviews)
  • The straight non stop flight (in 4245 reviews)

Frequently asked questions about Frontier

  • What are the most popular Frontier airports?

    The most popular airports for Frontier are Orlando, Philadelphia, and Denver Intl 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 Las Vegas Harry Reid Intl to Los Angeles, which is £39. This round-trip flight has 0 stops. For a one-way domestic Frontier flight, the cheapest route is Santa Ana J. Wayne/Orange Cnty to Las Vegas Harry Reid Intl (0 stops) for £21.

  • What is Frontier’s cheapest international flight?

    The least expensive round-trip international Frontier flight is: -San Juan Luis Munoz Marin Intl to Saint Thomas Island Cyril E King, -0 stops, -£54 per ticket Frontier has international one-way flights available, but the cheapest is a flight from Christiansted Henry Rohlsen to San Juan Luis Munoz Marin Intl for just £24. This flight has 0 stops.

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