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Find cheap Allegiant Air flights to Harrisburg

RDU — MDT
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Find Allegiant Air flight deals to Harrisburg

Cheapest Allegiant Air flights from USA to Harrisburg
Explore the most affordable Allegiant Air flight options available from USA to Harrisburg. Find the lowest fares with prices last updated on July 27, 2026.

This CheapOair deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:00 am
SFB
-
MDT
Nonstop2h 20m
Allegiant Air
Mon 8/1710:10 am
MDT
-
SFB
Nonstop2h 18m
Allegiant Air
Deal found 7/23$146
This Cheapflightsfares deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:00 am
SFB
-
MDT
Nonstop2h 21m
Allegiant Air
Sun 8/307:15 pm
MDT
-
SFB
Nonstop2h 17m
Allegiant Air
Deal found 7/24$157
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:00 am
SFB
-
MDT
Nonstop2h 21m
Allegiant Air
Mon 8/3111:44 am
MDT
-
SFB
Nonstop2h 17m
Allegiant Air
Deal found 7/23$164

Flights to Harrisburg with Allegiant Air at a glance

Find detailed information about Allegiant Air flights from USA to Harrisburg. Explore the options provided by Allegiant Air to plan your journey from USA to Harrisburg. Data last updated July 27, 2026.

Popular in

June

Cheapest in

August

Average price

$190

Round-trip from

$107

One-way from

$45
Highest demand for flights to Harrisburg with Allegiant Air; 4% potential price increase.
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Best time to find cheap flights to Harrisburg with Allegiant Air; 1% potential price drop.
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Average price for flights to Harrisburg with Allegiant Air (round-trip).
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Allegiant Air
  • Allegiant Air
  • 10/10-10/12
  • Nonstop
  • 4h 35m total
  • USA to Harrisburg
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Allegiant Air
  • Allegiant Air
  • 9/11
  • Nonstop
  • 2h 18m total
  • USA to Harrisburg
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Cheapflights Insights

Find cheap Allegiant Air flights to Harrisburg

How long is the flight to Harrisburg with Allegiant Air?

On average, Allegiant Air flights from the United States to Harrisburg take 2 hours 57 minutes. Flights to Harrisburg from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.

Allegiant Air weekly flight availability to Harrisburg

The most flights to Harrisburg operated by Allegiant Air are scheduled on a Sunday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

When is the best time to book a flight to Harrisburg with Allegiant Air?

The best time to book a flight to Harrisburg with Allegiant Air is 40 days before departure. On average, fares are higher if you book 71 days before departure.

FAQs about flights to Harrisburg with Allegiant Air

  • Which airport do Allegiant Air flights arrive at when travelling to Harrisburg?

    Allegiant Air flights on this route tend to land at Harrisburg Airport.

  • Is Allegiant Air the cheapest airline for a flight to Harrisburg?

    Flight prices will depend on many factors like date, time and cabin class so it is worth comparing flights before booking. Based on Cheapflights data the cheapest average return price for flights to Harrisburg tends to be with Frontier.

  • Are there alternative airlines other than Allegiant Air that fly to Harrisburg?

    American Airlines, United Airlines and Delta all fly to Harrisburg and offer an alternative to Allegiant Air.

  • How much is a flight to Harrisburg with Allegiant Air?

    The average price for a return flight with Allegiant Air is $191; with a one-way flight around $138.

See more FAQs

Reviews of Allegiant Air

See what Cheapflights users have to say about their Allegiant Air experience.
Allegiant Air
7.3
Good
680 reviews
Overview

Entertainment

5.4

Boarding

7.7

Comfort

6.9

Food

5.8

Crew

8.1

Popular Allegiant Air flights

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