Trip.com
>
Flights
>
Flights to United States
>
Flights to South Dakota
>
Flights to Rapid City
Hotels in Rapid City
>
Flights from Casper to Rapid City

Cheap flight deals from Casper to Rapid City

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • Round-trip
  • One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | Casper to Rapid City

Cheapest one-way flight price Rp 6,723,602
Off-season for travel March
Peak season for travel December
Flight distance 302.58 km
Popular airline United Airlines

When is the cheapest time to fly from Casper to Rapid City?

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights
From price
Search
  • 15 22
  • 22 29

  • Jul

    29 6
  • 6 13
  • 13 20
  • 20 27

  • Aug

    27 3
  • 3 10
  • 10 17
  • 17 24
  • 24 31

  • Sep

    31 7
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Casper (CPR) to Rapid City (RAP) the cheapest?

    Airlines adjust prices for flights from Casper to Rapid City based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Casper (CPR) to Rapid City (RAP) cost?

    According to Trip.com's data, the lowest price is around Rp 8,812,269.

How to find a cheap flight from Casper to Rapid City

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Casper to Rapid City. Book your flights at the right time and save more.
1
Be flexible with your travel dates to get the cheapest Casper to Rapid City ticket.
Tap "Date" in the flight search bar to browse the calendar and find airfare from Casper to Rapid City for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is Rp 6723603 for a one-way ticket on Mon, Jun 16.
2
Compare cheap Casper to Rapid City flight deals from hundreds of airlines.
Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from Casper to Rapid City. The most affordable airline currently operating on this route is United Airlines.
3
Set up a Price Alert to track fare drops.
Set up a Price Alert for your Casper to Rapid City route to track ticket prices effortlessly—no need to check manually every day.
4
Don't miss out on cheap Casper to Rapid City flight deals and promo codes.
Stay updated on the latest deals with Trip.com Deals and Promo Codes for cheap flights. Sign up for a free membership to unlock even more exclusive flight discounts.
5
Book early or wait unitl the last minute to fine the best fares.
It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.
6
Search for flights on the go.
For the best booking experience on the go, download Trip.com and search for cheap flights from Casper to Rapid City to access exclusive deals just for you.

Find Cheap Flights & Deals on Trip.com

  • Top Routes from Casper
  • Top Routes to Rapid City
  • Popular Airlines