$122 Cheap Flights from Detroit (DTW) to Rapid City (RAP)

View $122 flight on Mon, Aug 3, 2026Opens in a new window

Popular airlines from Detroit Metropolitan Wayne County Airport (DTW) to Rapid City Regional Airport (RAP)

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Cheap Flights from Detroit to Rapid City (DTW-RAP)

Prices were available within the past 7 days and start at $122 for one-way flights and $259 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, May 2 - Sat, May 9
DTW
Detroit
RAP
Rapid City
$259 Roundtrip, just found
$259
Roundtrip
just found
Select United flight, departing Sat, May 2 from Detroit to Rapid City, returning Sat, May 9, priced at $259 just found
United
Thu, Mar 5 - Tue, Mar 10
DTW
Detroit
RAP
Rapid City
$264 Roundtrip, found 12 hours ago
$264
Roundtrip
found 12 hours ago
Select United flight, departing Thu, Mar 5 from Detroit to Rapid City, returning Tue, Mar 10, priced at $264 found 12 hours ago
United
Wed, Feb 25 - Tue, Mar 3
DTW
Detroit
RAP
Rapid City
$269 Roundtrip, found 1 day ago
$269
Roundtrip
found 1 day ago
Select United flight, departing Wed, Feb 25 from Detroit to Rapid City, returning Tue, Mar 3, priced at $269 found 1 day ago
United
Mon, Nov 10 - Mon, Nov 17
DTW
Detroit
RAP
Rapid City
$274 Roundtrip, found 6 days ago
$274
Roundtrip
found 6 days ago
Select United flight, departing Mon, Nov 10 from Detroit to Rapid City, returning Mon, Nov 17, priced at $274 found 6 days ago
United
Mon, Nov 10 - Mon, Nov 17
DTW
Detroit
RAP
Rapid City
$279 Roundtrip, found 6 days ago
$279
Roundtrip
found 6 days ago
Select United flight, departing Mon, Nov 10 from Detroit to Rapid City, returning Mon, Nov 17, priced at $279 found 6 days ago
United
Sat, May 2 - Sat, May 9
DTW
Detroit
RAP
Rapid City
$284 Roundtrip, just found
$284
Roundtrip
just found
Select United flight, departing Sat, May 2 from Detroit to Rapid City, returning Sat, May 9, priced at $284 just found
Delta
Wed, Apr 29 - Sat, May 9
DTW
Detroit
RAP
Rapid City
$284 Roundtrip, just found
$284
Roundtrip
just found
Select Delta flight, departing Wed, Apr 29 from Detroit to Rapid City, returning Sat, May 9, priced at $284 just found
United
Sat, May 2 - Sat, May 9
DTW
Detroit
RAP
Rapid City
$289 Roundtrip, just found
$289
Roundtrip
just found
Select United flight, departing Sat, May 2 from Detroit to Rapid City, returning Sat, May 9, priced at $289 just found
Delta
Fri, Nov 14 - Thu, Nov 20
DTW
Detroit
RAP
Rapid City
$289 Roundtrip, found 3 days ago
$289
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Nov 14 from Detroit to Rapid City, returning Thu, Nov 20, priced at $289 found 3 days ago
American Airlines
Wed, Feb 25 - Tue, Mar 3
DTW
Detroit
RAP
Rapid City
$332 Roundtrip, found 1 day ago
$332
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Feb 25 from Detroit to Rapid City, returning Tue, Mar 3, priced at $332 found 1 day ago

Find the cheapest month to fly from Detroit (DTW) to Rapid City (RAP)

September is typically the cheapest month to fly

From $254 - $514 per traveler.

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 $309
RAP
Rapid City Regional
CheapestClosest
Average driving time to city center16 min
Flights from $309
Flights from Detroit (DTW) to Rapid City (RAP)
Origin airport
Detroit Metropolitan Wayne County
Destination airport
Rapid City Regional
Airlines serving
American Airlines, Delta, United
Roundtrip price
$258
Distance
999 mi

Detroit to Rapid City Flights

The cheapest times to fly from Detroit 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 Detroit to Rapid City are during the month of May. You can find some of the cheapest flights from Detroit to Rapid City with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Detroit to Rapid City

Sunday is one of the best days to book for cheap flights from Detroit 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 Detroit 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 Detroit to Rapid City in 2025. You can also book with separate airlines for your outbound and return journeys, from $122 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 Detroit 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 Detroit 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 Detroit Metropolitan Wayne County Airport (DTW) to Rapid City Regional Airport (RAP) cost?
Secure a cheap one-way flight from $122 or cheap return flight from $259 from Detroit Metropolitan Wayne County Airport (DTW) to Rapid City Regional Airport (RAP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Detroit Metropolitan Wayne County Airport (DTW) to Rapid City Regional Airport (RAP)?
Flying in May can help you save, as it's the cheapest month for flights between DTW and RAP. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Detroit Metropolitan Wayne County Airport (DTW) to Rapid City Regional Airport (RAP)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest DTW to RAP flight.
How many flights per day from Detroit Metropolitan Wayne County Airport (DTW) to Rapid City Regional Airport (RAP)?
Direct flights from Detroit Metropolitan Wayne County Airport (DTW) to Rapid City Regional Airport (RAP) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DTW to RAP?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on a range of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from DTW to RAP?
With 100% of flights usually landing on schedule, Delta Air Lines has the best on-time performance for nonstop flights from Detroit Metropolitan Wayne County Airport (DTW) to Rapid City Regional Airport (RAP). To keep track of your flight status and get notifications about any changes, use the Expedia App.
What is the best time to fly from Detroit Metropolitan Wayne County Airport (DTW) to Rapid City Regional Airport (RAP)?
Select a flight from Detroit Metropolitan Wayne County Airport (DTW) to Rapid City Regional Airport (RAP) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**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 Detroit Metropolitan Wayne County Airport (DTW) to Rapid City Regional Airport (RAP) last-minute?
Booking your plane ticket from DTW to RAP just before your getaway is typically more expensive. But if there's some wiggle room with your travel dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a DTW to RAP flight and hotel package?
Securing a DTW to RAP flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our extensive range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Detroit Metropolitan Wayne County Airport (DTW) to Rapid City Regional Airport (RAP)?
Typically, you can cancel or reschedule your DTW to RAP flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want further information, visit our Customer Service portal.

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*Available to One Key members.