$678 Cheap Flights from Rapid City (RAP) to Butte (BTM)

View $678 flight on Sun, May 3, 2026Opens in a new window

Popular airlines from Rapid City Regional Airport (RAP) to Butte, MT (BTM-Bert Mooney)

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Cheap Flights from Rapid City to Butte (RAP-BTM)

Prices were available within the past 7 days and start at $678 for one-way flights and $248 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, May 2 - Wed, May 6
RAP
Rapid City
BTM
Butte
$248 Roundtrip, found 6 days ago
$248
Roundtrip
found 6 days ago
Select United flight, departing Sat, May 2 from Rapid City to Butte, returning Wed, May 6, priced at $248 found 6 days ago
United
Thu, Dec 25 - Fri, Dec 26
RAP
Rapid City
BTM
Butte
$284 Roundtrip, found 2 days ago
$284
Roundtrip
found 2 days ago
Select United flight, departing Thu, Dec 25 from Rapid City to Butte, returning Fri, Dec 26, priced at $284 found 2 days ago
United
Sat, May 2 - Wed, May 6
RAP
Rapid City
BTM
Butte
$308 Roundtrip, found 6 days ago
$308
Roundtrip
found 6 days ago
Select United flight, departing Sat, May 2 from Rapid City to Butte, returning Wed, May 6, priced at $308 found 6 days ago
United
Thu, Dec 25 - Tue, Dec 30
RAP
Rapid City
BTM
Butte
$329 Roundtrip, found 2 days ago
$329
Roundtrip
found 2 days ago
Select United flight, departing Thu, Dec 25 from Rapid City to Butte, returning Tue, Dec 30, priced at $329 found 2 days ago
United
Sat, May 2 - Wed, May 6
RAP
Rapid City
BTM
Butte
$340 Roundtrip, found 6 days ago
$340
Roundtrip
found 6 days ago
Select United flight, departing Sat, May 2 from Rapid City to Butte, returning Wed, May 6, priced at $340 found 6 days ago
United
Tue, Dec 23 - Thu, Dec 25
RAP
Rapid City
BTM
Butte
$367 Roundtrip, found 2 days ago
$367
Roundtrip
found 2 days ago
Select United flight, departing Tue, Dec 23 from Rapid City to Butte, returning Thu, Dec 25, priced at $367 found 2 days ago
United
Sun, Dec 21 - Tue, Dec 30
RAP
Rapid City
BTM
Butte
$374 Roundtrip, found 2 days ago
$374
Roundtrip
found 2 days ago
Select United flight, departing Sun, Dec 21 from Rapid City to Butte, returning Tue, Dec 30, priced at $374 found 2 days ago
United
Sat, May 2 - Wed, May 6
RAP
Rapid City
BTM
Butte
$378 Roundtrip, found 6 days ago
$378
Roundtrip
found 6 days ago
Select United flight, departing Sat, May 2 from Rapid City to Butte, returning Wed, May 6, priced at $378 found 6 days ago
United
Wed, Apr 29 - Fri, May 8
RAP
Rapid City
BTM
Butte
$383 Roundtrip, found 6 days ago
$383
Roundtrip
found 6 days ago
Select United flight, departing Wed, Apr 29 from Rapid City to Butte, returning Fri, May 8, priced at $383 found 6 days ago
United
Thu, Dec 25 - Sun, Dec 28
RAP
Rapid City
BTM
Butte
$399 Roundtrip, found 2 days ago
$399
Roundtrip
found 2 days ago
Select United flight, departing Thu, Dec 25 from Rapid City to Butte, returning Sun, Dec 28, priced at $399 found 2 days ago
United
Tue, Dec 23 - Tue, Dec 30
RAP
Rapid City
BTM
Butte
$412 Roundtrip, found 2 days ago
$412
Roundtrip
found 2 days ago
Select United flight, departing Tue, Dec 23 from Rapid City to Butte, returning Tue, Dec 30, priced at $412 found 2 days ago
United
Thu, Apr 30 - Fri, May 8
RAP
Rapid City
BTM
Butte
$428 Roundtrip, found 6 days ago
$428
Roundtrip
found 6 days ago
Select United flight, departing Thu, Apr 30 from Rapid City to Butte, returning Fri, May 8, priced at $428 found 6 days ago
United
Thu, Dec 25 - Mon, Dec 29
RAP
Rapid City
BTM
Butte
$429 Roundtrip, found 2 days ago
$429
Roundtrip
found 2 days ago
Select United flight, departing Thu, Dec 25 from Rapid City to Butte, returning Mon, Dec 29, priced at $429 found 2 days ago

Frequently asked questions

How much does a flight from Rapid City Regional Airport (RAP) to Bert Mooney Airport (BTM) cost?
Snag a cheap one-way flight from $678 or cheap return flight from $248 from Rapid City Regional Airport (RAP) to Bert Mooney Airport (BTM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Rapid City Regional Airport (RAP) to Bert Mooney Airport (BTM)?
The cheapest month to fly from RAP to BTM is May, when there's less demand. Off-peak season is usually when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Rapid City Regional Airport (RAP) to Bert Mooney Airport (BTM)?
To find the cheapest airline flying from RAP to BTM, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Rapid City Regional Airport (RAP) to Bert Mooney Airport (BTM)?
You'll have to hop on a flight with a layover if you're traveling from Rapid City Regional Airport (RAP) to Bert Mooney Airport (BTM). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from RAP to BTM?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on a number of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Rapid City Regional Airport (RAP) to Bert Mooney Airport (BTM)?
To arrive at Bert Mooney Airport (BTM) on time, book a flight that leaves from Rapid City Regional Airport (RAP) before 3 PM. The likelihood 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 Rapid City Regional Airport (RAP) to Bert Mooney Airport (BTM) last-minute?
Last-minute bookings from RAP to BTM are typically more expensive. To lock in the lowest prices, start searching for flights well in advance. That said, if you can play around with your travel dates, you may score a cheap fare right before your trip.
Is it cheaper to book a RAP to BTM flight and hotel package?
Securing a RAP to BTM flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our extensive range of stays and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Rapid City Regional Airport (RAP) to Bert Mooney Airport (BTM)?
It's generally possible to reschedule or cancel your RAP to BTM flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Rapid City Regional
Destination airport
Bert Mooney
Roundtrip price
$248
Distance
479 mi

Book with confidence

Rapid City to Butte Flights

The cheapest times to fly from Rapid City to Butte

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

 

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

Sunday is one of the best days to book for cheap flights from Rapid City to Butte: 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 Rapid City to Butte

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 Rapid City to Butte in 2025. You can also book with separate airlines for your outbound and return journeys, from $678 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 Rapid City to Butte 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 Rapid City to Butte 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.

 

Rapid City to Butte Flights

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*Available to One Key members.