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Cheap Allegiant Air flights

LHR
22 Jan — 29 Jan1
1 adult

Allegiant Air information

Discover detailed information about Allegiant Air flights, including average fare prices, reviews, and more. Flight info is based on data from user searches last updated on 17 January 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£48

Most Popular Route

BOI to LAS

Shortest flight

1h 14m

Longest Flight

4h 04m
Flying from Flint Bishop to Jacksonville
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Allegiant Air Reviews

Read reviews and feedback from other travellers about their experiences with Allegiant Air sourced from user searches. These reviews were last updated on 17 January 2025 and provide insights based on users' experiences. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Allegiant Air
7.3
Good
801 reviews
Check prices
Overview

Comfort

6.9

Entertainment

5.6

Boarding

7.7

Food

6.0

Crew

8.2

Frequently asked questions about Allegiant Air

  • What are the most popular Allegiant Air airports?

    The most popular airports for Allegiant Air are Orlando Sanford Intl, Knoxville McGhee Tyson, and Tampa St. Petersburg according to our data. Flights to or from any of these airports should be available via Allegiant Air year-round.

  • What is Allegiant Air’s cheapest domestic flight?

    The cheapest domestic Allegiant Air flight is flying Flint Bishop to Jacksonville, which is £48. This round-trip flight has 0 stops. For a one-way domestic Allegiant Air flight, the cheapest route is Concord Regional to Tampa St. Petersburg (0 stops) for £29.

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