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Find cheap one-way flights from Rapid City to Casper starting at US$527.

Whether you’re going for a one-way or round-trip to Casper, we’ve got you covered! Check out these different flight options from Rapid City below.

  • Round-trip
      • RAP08:21
        8h 34m
        1 stop
        CPR16:55
        Wed, Mar 5|Rapid City - Casper|United Airlines
        CPR15:18
        19h 48m
        1 stop
        RAP11:06
        Tue, Mar 11|Casper - Rapid City|United Airlines
        US$527US$916
        42% OFF
        42% OFF
        US$916US$527

        Choose United Airlines flights from Rapid City to Casper.The one-way connecting flight with United Airlines departs from Rapid City Regional Airport on Wed, Mar 5-Tue, Mar 11, arriving at Casper Airport.One-way Prices start from US$527 including taxes and charges.

      • RAP05:15
        16h 59m
        1 stop
        CPR22:14
        Mon, Feb 24|Rapid City - Casper|United Airlines
        CPR11:48
        9h 8m
        1 stop
        RAP20:56
        Sun, Mar 2|Casper - Rapid City|United Airlines
        US$532US$916
        42% OFF
        42% OFF
        US$916US$532

        Choose United Airlines flights from Rapid City to Casper.The one-way connecting flight with United Airlines departs from Rapid City Regional Airport on Mon, Feb 24-Sun, Mar 2, arriving at Casper Airport.One-way Prices start from US$532 including taxes and charges.

      • RAP10:35
        24h 38m
        1 stop
        CPR11:13
        Mon, Mar 3|Rapid City - Casper|United Airlines
        CPR11:39
        9h 18m
        1 stop
        RAP20:57
        Sun, Mar 9|Casper - Rapid City|United Airlines
        US$532US$916
        42% OFF
        42% OFF
        US$916US$532

        Choose United Airlines flights from Rapid City to Casper.The one-way connecting flight with United Airlines departs from Rapid City Regional Airport on Mon, Mar 3-Sun, Mar 9, arriving at Casper Airport.One-way Prices start from US$532 including taxes and charges.

      • RAP05:15
        7h 36m
        1 stop
        CPR12:51
        Thu, Feb 27|Rapid City - Casper|United Airlines
        CPR13:35
        21h 31m
        1 stop
        RAP11:06
        Wed, Mar 5|Casper - Rapid City|United Airlines
        US$532
        US$532

        Choose United Airlines flights from Rapid City to Casper.The one-way connecting flight with United Airlines departs from Rapid City Regional Airport on Thu, Feb 27-Wed, Mar 5, arriving at Casper Airport.One-way Prices start from US$532 including taxes and charges.

      • RAP07:00
        15h 14m
        1 stop
        CPR22:14
        Sun, Feb 23|Rapid City - Casper|United Airlines
        CPR11:48
        9h 48m
        1 stop
        RAP21:36
        Sat, Mar 1|Casper - Rapid City|United Airlines
        US$532
        US$532

        Choose United Airlines flights from Rapid City to Casper.The one-way connecting flight with United Airlines departs from Rapid City Regional Airport on Sun, Feb 23-Sat, Mar 1, arriving at Casper Airport.One-way Prices start from US$532 including taxes and charges.

      • RAP07:00
        7h 39m
        1 stop
        CPR14:39
        Tue, Feb 25|Rapid City - Casper|United Airlines
        CPR18:13
        24h 33m
        1 stop
        RAP18:46
        Mon, Mar 3|Casper - Rapid City|United Airlines
        US$532
        US$532

        Choose United Airlines flights from Rapid City to Casper.The one-way connecting flight with United Airlines departs from Rapid City Regional Airport on Tue, Feb 25-Mon, Mar 3, arriving at Casper Airport.One-way Prices start from US$532 including taxes and charges.

      • RAP07:00
        15h 14m
        1 stop
        CPR22:14
        Wed, Feb 26|Rapid City - Casper|United Airlines
        CPR11:48
        10h 27m
        1 stop
        RAP22:15
        Tue, Mar 4|Casper - Rapid City|United Airlines
        US$532
        US$532

        Choose United Airlines flights from Rapid City to Casper.The one-way connecting flight with United Airlines departs from Rapid City Regional Airport on Wed, Feb 26-Tue, Mar 4, arriving at Casper Airport.One-way Prices start from US$532 including taxes and charges.

      • RAP11:45
        10h 29m
        1 stop
        CPR22:14
        Sat, Mar 1|Rapid City - Casper|United Airlines
        CPR18:10
        20h 36m
        1 stop
        RAP14:46
        Fri, Mar 7|Casper - Rapid City|United Airlines
        US$532
        US$532

        Choose United Airlines flights from Rapid City to Casper.The one-way connecting flight with United Airlines departs from Rapid City Regional Airport on Sat, Mar 1-Fri, Mar 7, arriving at Casper Airport.One-way Prices start from US$532 including taxes and charges.

      • RAP08:20
        13h 54m
        1 stop
        CPR22:14
        Fri, Mar 7|Rapid City - Casper|United Airlines
        CPR11:39
        9h 18m
        1 stop
        RAP20:57
        Thu, Mar 13|Casper - Rapid City|United Airlines
        US$536
        US$536

        Choose United Airlines flights from Rapid City to Casper.The one-way connecting flight with United Airlines departs from Rapid City Regional Airport on Fri, Mar 7-Thu, Mar 13, arriving at Casper Airport.One-way Prices start from US$536 including taxes and charges.

      • RAP11:45
        8h 29m
        1 stop
        CPR20:14
        Fri, Feb 21|Rapid City - Casper|United Airlines
        CPR18:13
        24h 33m
        1 stop
        RAP18:46
        Thu, Feb 27|Casper - Rapid City|United Airlines
        US$536
        US$536

        Choose United Airlines flights from Rapid City to Casper.The one-way connecting flight with United Airlines departs from Rapid City Regional Airport on Fri, Feb 21-Thu, Feb 27, arriving at Casper Airport.One-way Prices start from US$536 including taxes and charges.

      • RAP01:00 pm
        3h 5m
        Nonstop
        CPR02:00 pm
        Fri, Feb 28|Rapid City - Casper|United Airlines
        Find More Flights
        Find More Flights

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

Rapid City to Casper Flight time & Schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA5576

    United Airlines

    05:30

    RAP

    1.3h

    06:50

    DEN

    S--WTFS
    Search

  2. UA5347

    United Airlines

    21:00

    DEN

    1.2h

    22:13

    CPR

    SMTWTFS

  3. UA5576

    United Airlines

    05:30

    RAP

    1.3h

    06:50

    DEN

    S--WTFS
    Search

  4. UA4667

    United Airlines

    11:30

    DEN

    1.2h

    12:43

    CPR

    SMTWTFS

  5. UA2307

    United Airlines

    08:21

    RAP

    1.6h

    10:00

    DEN

    SMTWTFS
    Search

  6. UA5347

    United Airlines

    21:00

    DEN

    1.2h

    22:13

    CPR

    SMTWTFS

  7. UA2307

    United Airlines

    08:21

    RAP

    1.6h

    10:00

    DEN

    SMTWTFS
    Search

  8. UA5294

    United Airlines

    15:41

    DEN

    1.2h

    16:52

    CPR

    SMTWTFS

  9. UA5884

    United Airlines

    08:47

    RAP

    1.6h

    10:20

    DEN

    SMTWTFS
    Search

  10. UA5347

    United Airlines

    21:00

    DEN

    1.2h

    22:13

    CPR

    SMTWTFS

  11. UA5884

    United Airlines

    08:47

    RAP

    1.6h

    10:20

    DEN

    SMTWTFS
    Search

  12. UA4797

    United Airlines

    13:25

    DEN

    1.2h

    14:35

    CPR

    SMTWTFS

  13. UA5396

    United Airlines

    10:45

    RAP

    1.8h

    12:31

    DEN

    SMTWTFS
    Search

  14. UA5347

    United Airlines

    21:00

    DEN

    1.2h

    22:13

    CPR

    SMTWTFS

  15. UA5365

    United Airlines

    11:45

    RAP

    1.8h

    13:30

    DEN

    SMTWTFS
    Search

  16. UA5347

    United Airlines

    21:00

    DEN

    1.2h

    22:13

    CPR

    SMTWTFS

  17. UA5346

    United Airlines

    13:21

    RAP

    1.6h

    14:57

    DEN

    SMTWTFS
    Search

  18. UA5347

    United Airlines

    21:00

    DEN

    1.2h

    22:13

    CPR

    SMTWTFS

  19. UA5346

    United Airlines

    13:21

    RAP

    1.6h

    14:57

    DEN

    SMTWTFS
    Search

  20. UA5802

    United Airlines

    19:05

    DEN

    1.2h

    20:18

    CPR

    SMTWTFS
Find more flights and airlines

When is the cheapest time to book flights from Rapid City to Casper?

Price trend charts are a great way of tracking how much your flights cost in the lead up to departure and can help you choose when to book your tickets. See how prices to Casper from Rapid City have changed and are set to move below.

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 Rapid City (RAP) to Casper (CPR) the cheapest?

    Airlines adjust prices for flights from Rapid City to Casper 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 Rapid City (RAP) to Casper (CPR) cost?

    According to Trip.com's data, the lowest price is around $476.

  • What is the transportation method from the main airport to downtown in Casper?

    • The distance from Casper Airport to downtown is about 12 km. It takes about 30 minutes by taxi.

How to find a cheap flight from Rapid City to Casper

If you don’t know some of the key things to look out for when buying flight tickets, prices can often end up sky high or, worse, sold out! We’ve carefully compiled our six most important steps to help ensure you’re getting the best deals when planning your next journey.
1
Being flexible with your dates to get the cheapest Rapid City to Casper ticket.
Tap "Date" on flight search bar to scan through the calender for Rapid City to Casper airfare over next 6 months in 2025.
2
Compare cheap Rapid City to Casper flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Rapid City to Casper.
3
Set up a Price Alert
By setting up a Price Alert for your Rapid City to Casper route, you can easily track the price of your airline tickets from Rapid City to Casper without manually checking every day.
4
Don't miss cheap Rapid City to Casper flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com free app and search for cheap flight tickets from Rapid City to Casper to get exclusive deals for you.

Rapid City to Casper Flight Information

Off-season for travelJanuary
Peak season for travelJanuary
Flight distance302.58 km
Popular airlineUnited Airlines

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