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Cheap Allegiant Air flights

LHR
24 Jun — 1 Jul1
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 19 June 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£27

Most Popular Route

ORF to BOS

Shortest flight

1h 13m

Longest Flight

13h 13m
Flying from Louisville Intl to Punta Gorda
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Flying from Norfolk to Boston Logan Intl
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Flying from Fresno Airterminal to Las Vegas Harry Reid Intl
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Flying from Washington, D.C. Dulles Intl to Boston Logan Intl
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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 19 June 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
722 reviews
Check prices
Overview

Entertainment

5.5

Boarding

7.6

Food

5.9

Comfort

6.8

Crew

8.1
Pros +
  • They made the flight home very enjoyable. (in 119 reviews)
  • Great crew and smooth ride (in 120 reviews)
  • For the price it was a very good flying experience (in 31 reviews)
Cons -
  • Fast flight! (in 173 reviews)
  • The seats were very uncomfortable. (in 104 reviews)
  • "The seats are not the most comfortable, but the price is right." (in 40 reviews)

Frequently asked questions about Allegiant Air

  • What are the most popular Allegiant Air airports?

    The most popular airports for Allegiant Air are Knoxville McGhee Tyson, Orlando Sanford Intl, and Asheville Regional 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 Louisville Intl to Punta Gorda, which is £27. This round-trip flight has 0 stops. For a one-way domestic Allegiant Air flight, the cheapest route is Columbus Rickenbacker to Charleston (0 stops) for £25.

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Thu 6/19

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