$181 Cheap Flights from Des Moines (DSM) to Rapid City (RAP)

View $181 flight on Sun, Sep 21, 2025Opens in a new window

Popular airlines from Des Moines International Airport (DSM) to Rapid City Regional Airport (RAP)

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Cheap Flights from Des Moines to Rapid City (DSM-RAP)

Prices were available within the past 7 days and start at $181 for one-way flights and $254 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Sep 12 - Sat, Sep 20
DSM
Des Moines
RAP
Rapid City
$254 Roundtrip, found 16 hours ago
$254
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Sep 12 from Des Moines to Rapid City, returning Sat, Sep 20, priced at $254 found 16 hours ago
United
Tue, Sep 2 - Tue, Sep 9
DSM
Des Moines
RAP
Rapid City
$259 Roundtrip, found 5 days ago
$259
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 2 from Des Moines to Rapid City, returning Tue, Sep 9, priced at $259 found 5 days ago
United
Thu, Sep 18 - Tue, Sep 23
DSM
Des Moines
RAP
Rapid City
$264 Roundtrip, found 2 days ago
$264
Roundtrip
found 2 days ago
Select United flight, departing Thu, Sep 18 from Des Moines to Rapid City, returning Tue, Sep 23, priced at $264 found 2 days ago
United
Thu, Sep 11 - Mon, Sep 15
DSM
Des Moines
RAP
Rapid City
$267 Roundtrip, found 6 days ago
$267
Roundtrip
found 6 days ago
Select United flight, departing Thu, Sep 11 from Des Moines to Rapid City, returning Mon, Sep 15, priced at $267 found 6 days ago
United
Thu, Sep 18 - Tue, Sep 23
DSM
Des Moines
RAP
Rapid City
$269 Roundtrip, found 2 days ago
$269
Roundtrip
found 2 days ago
Select United flight, departing Thu, Sep 18 from Des Moines to Rapid City, returning Tue, Sep 23, priced at $269 found 2 days ago
United
Fri, Sep 19 - Wed, Sep 24
DSM
Des Moines
RAP
Rapid City
$270 Roundtrip, found 2 days ago
$270
Roundtrip
found 2 days ago
Select United flight, departing Fri, Sep 19 from Des Moines to Rapid City, returning Wed, Sep 24, priced at $270 found 2 days ago
Delta
Mon, Oct 20 - Tue, Oct 28
DSM
Des Moines
RAP
Rapid City
$275 Roundtrip, found 1 day ago
$275
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Oct 20 from Des Moines to Rapid City, returning Tue, Oct 28, priced at $275 found 1 day ago
United
Fri, Sep 12 - Mon, Sep 15
DSM
Des Moines
RAP
Rapid City
$278 Roundtrip, found 4 days ago
$278
Roundtrip
found 4 days ago
Select United flight, departing Fri, Sep 12 from Des Moines to Rapid City, returning Mon, Sep 15, priced at $278 found 4 days ago
United
Tue, Sep 2 - Tue, Sep 9
DSM
Des Moines
RAP
Rapid City
$278 Roundtrip, found 5 days ago
$278
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 2 from Des Moines to Rapid City, returning Tue, Sep 9, priced at $278 found 5 days ago
American Airlines
Thu, Oct 23 - Sun, Oct 26
DSM
Des Moines
RAP
Rapid City
$279 Roundtrip, found 1 day ago
$279
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Oct 23 from Des Moines to Rapid City, returning Sun, Oct 26, priced at $279 found 1 day ago

Find the cheapest month to fly from Des Moines (DSM) to Rapid City (RAP)

January is typically the cheapest month to fly

From $248 - $513 per traveler.

Graph displaying average flight prices per month

Alternative airports near Rapid City

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Rapid City Regional RAP. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $364
RAP
Rapid City Regional
CheapestClosest
Average driving time to city center16 min
Flights from $364
Flights from Des Moines (DSM) to Rapid City (RAP)
Origin airport
Des Moines Intl.
Destination airport
Rapid City Regional
Airlines serving
American Airlines, Delta, United
Roundtrip price
$253
Distance
507 mi

Des Moines to Rapid City Flights

The cheapest times to fly from Des Moines to Rapid City

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Des Moines to Rapid City are during the month of September. You can find some of the cheapest flights from Des Moines to Rapid City with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Des Moines to Rapid City

Sunday is one of the best days to book for cheap flights from Des Moines to Rapid City: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Des Moines to Rapid City

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Des Moines to Rapid City in 2025. You can also book with separate airlines for your outbound and return journeys, from $181 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Des Moines to Rapid City flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Des Moines to Rapid City airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Des Moines Intl. Airport (DSM) to Rapid City Regional Airport (RAP) cost?
Get a cheap one-way flight from $181 or cheap return flight from $254 from Des Moines Intl. Airport (DSM) to Rapid City Regional Airport (RAP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Des Moines Intl. Airport (DSM) to Rapid City Regional Airport (RAP)?
Planning your trip for September is a good way to save, as it's the cheapest month for flights between DSM and RAP. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Des Moines Intl. Airport (DSM) to Rapid City Regional Airport (RAP)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest DSM to RAP flight.
How many flights per day from Des Moines Intl. Airport (DSM) to Rapid City Regional Airport (RAP)?
There aren't any daily nonstop flights from Des Moines Intl. Airport (DSM) to Rapid City Regional Airport (RAP). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from DSM to RAP?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Des Moines Intl. Airport (DSM) to Rapid City Regional Airport (RAP)?
To arrive at Rapid City Regional Airport (RAP) on time, book a flight that takes off from Des Moines Intl. Airport (DSM) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Des Moines Intl. Airport (DSM) to Rapid City Regional Airport (RAP) last-minute?
Last-minute bookings from DSM to RAP are usually more expensive. To lock in the lowest rates, start searching for flights as early as possible. That being said, if you're flexible with your travel plans, you may score a cheap ticket just before your departure.
Is it cheaper to book a DSM to RAP flight and hotel package?
Compared with arranging hotels and flights separately, booking a DSM to RAP flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one place will take the stress out of planning your trip. Just pick your flights and select from our extensive range of stays, then personalize your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Des Moines Intl. Airport (DSM) to Rapid City Regional Airport (RAP)?
In most cases, you're able to reschedule or cancel your DSM to RAP flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you need further information, go to our Customer Service portal.

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*Available to One Key members.