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Rapid City

Find cheap Allegiant Air flights to Rapid City

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

One-way Allegiant Air flights to Rapid City
Search for one-way Allegiant Air flight options to Rapid City. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:55 am
EWR
-
RAP
2 stops31h 40m
Allegiant Air
Deal found 7/24$325
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/79:55 am
EWR
-
RAP
2 stops32h 40m
Allegiant Air
Deal found 7/24$381
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.
Sat 8/89:05 pm
IAD
-
RAP
3 stops26h 11m
Allegiant Air
Deal found 7/23$390

Flights to Rapid City with Allegiant Air at a glance

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

Popular in

May

Cheapest in

August

Average price

$185

One-way from

$325

Good round-trip deal

$106 or less

Good one-way deal

$61 or less
Highest demand for flights to Rapid City with Allegiant Air; 0% potential price increase.
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Best time to find cheap flights to Rapid City with Allegiant Air; 2% potential price drop.
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Average price for flights to Rapid City with Allegiant Air (round-trip).
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Allegiant Air
  • Allegiant Air
  • 8/14
  • 2 total stops
  • 31h 40m total
  • USA to Rapid City
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Price to beat on a round-trip flight from the United States to Rapid City with Allegiant Air.
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Price to beat on a one-way flight from the United States to Rapid City with Allegiant Air.
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Cheapflights Insights

Find cheap Allegiant Air flights to Rapid City

How long is the flight to Rapid City with Allegiant Air?

On average, Allegiant Air flights from the United States to Rapid City take 3 hours 49 minutes. Flights to Rapid City 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 Rapid City

The most flights to Rapid City operated by Allegiant Air are scheduled on a Wednesday (2 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (0 on average).

FAQs about flights to Rapid City with Allegiant Air

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

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

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

    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 Rapid City tends to be with Sun Country Air.

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

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

  • How much is a flight to Rapid City with Allegiant Air?

    The average price for a return flight with Allegiant Air is $212; with a one-way flight around $100.

See more FAQs

Reviews of Allegiant Air

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

Crew

8.1

Food

5.8

Boarding

7.7

Comfort

6.9

Entertainment

5.4

Popular Allegiant Air flights

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