$216 Cheap Flights from Buffalo (BUF) to Rapid City (RAP)

View $216 flight on Tue, Aug 25, 2026Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Rapid City Regional Airport (RAP)

Cheap Flights from Buffalo to Rapid City (BUF-RAP)

Prices were available within the past 7 days and start at $216 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Mar 31 - Tue, Apr 7
BUF
Buffalo
RAP
Rapid City
$289 Roundtrip, found 16 hours ago
$289
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Mar 31 from Buffalo to Rapid City, returning Tue, Apr 7, priced at $289 found 16 hours ago
American Airlines
Fri, May 1 - Tue, May 5
BUF
Buffalo
RAP
Rapid City
$289 Roundtrip, found 6 days ago
$289
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, May 1 from Buffalo to Rapid City, returning Tue, May 5, priced at $289 found 6 days ago
Delta
Tue, Feb 24 - Mon, Mar 9
BUF
Buffalo
RAP
Rapid City
$300 Roundtrip, found 16 hours ago
$300
Roundtrip
found 16 hours ago
Select Delta flight, departing Tue, Feb 24 from Buffalo to Rapid City, returning Mon, Mar 9, priced at $300 found 16 hours ago
Delta
Sat, Aug 22 - Sun, Aug 30
BUF
Buffalo
RAP
Rapid City
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Aug 22 from Buffalo to Rapid City, returning Sun, Aug 30, priced at $314 found 1 day ago
Delta
Sat, May 23 - Sat, Jun 6
BUF
Buffalo
RAP
Rapid City
$319 Roundtrip, found 16 hours ago
$319
Roundtrip
found 16 hours ago
Select Delta flight, departing Sat, May 23 from Buffalo to Rapid City, returning Sat, Jun 6, priced at $319 found 16 hours ago
Delta
Tue, Feb 24 - Wed, Mar 11
BUF
Buffalo
RAP
Rapid City
$324 Roundtrip, found 16 hours ago
$324
Roundtrip
found 16 hours ago
Select Delta flight, departing Tue, Feb 24 from Buffalo to Rapid City, returning Wed, Mar 11, priced at $324 found 16 hours ago
United
Tue, Jul 7 - Fri, Jul 17
BUF
Buffalo
RAP
Rapid City
$336 Roundtrip, found 10 hours ago
$336
Roundtrip
found 10 hours ago
Select United flight, departing Tue, Jul 7 from Buffalo to Rapid City, returning Fri, Jul 17, priced at $336 found 10 hours ago
United
Tue, Jul 14 - Tue, Jul 21
BUF
Buffalo
RAP
Rapid City
$340 Roundtrip, found 2 days ago
$340
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jul 14 from Buffalo to Rapid City, returning Tue, Jul 21, priced at $340 found 2 days ago
American Airlines
Fri, May 1 - Tue, May 5
BUF
Buffalo
RAP
Rapid City
$344 Roundtrip, found 6 days ago
$344
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, May 1 from Buffalo to Rapid City, returning Tue, May 5, priced at $344 found 6 days ago
United
Tue, Mar 31 - Tue, Apr 7
BUF
Buffalo
RAP
Rapid City
$349 Roundtrip, found 16 hours ago
$349
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Mar 31 from Buffalo to Rapid City, returning Tue, Apr 7, priced at $349 found 16 hours ago

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 $483
RAP
Rapid City Regional
CheapestClosest
Average driving time to city center16 min
Flights from $483

Find the cheapest month to fly from Buffalo (BUF) to Rapid City (RAP)

September is typically the cheapest month to fly

From $268 - $524 per traveler.
Flights from Buffalo (BUF) to Rapid City (RAP)
Origin airport
Buffalo Niagara Intl.
Destination airport
Rapid City Regional
Airlines serving
American Airlines, Delta, United
Roundtrip price
$288
Distance
1217 mi

Buffalo to Rapid City Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Buffalo 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 Buffalo 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 Buffalo to Rapid City in 2026. You can also book with separate airlines for your outbound and return journeys, from $216 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 Buffalo 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 Buffalo 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 Buffalo Niagara Intl. Airport (BUF) to Rapid City Regional Airport (RAP) cost?
Lock in a cheap one-way flight from $216 or cheap return flight from $289 from Buffalo Niagara Intl. Airport (BUF) to Rapid City Regional Airport (RAP) 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 Buffalo Niagara Intl. Airport (BUF) to Rapid City Regional Airport (RAP)?
March is the cheapest month to fly from BUF to RAP. Traveling outside of peak seasons is often the key to better flight prices.
What is the cheapest airline that flies from Buffalo Niagara Intl. Airport (BUF) to Rapid City Regional Airport (RAP)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest BUF to RAP flight.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Rapid City Regional Airport (RAP)?
There are no daily nonstop flights available from Buffalo Niagara Intl. Airport (BUF) to Rapid City Regional Airport (RAP). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from BUF to RAP?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change based on a range of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Rapid City Regional Airport (RAP)?
To avoid possible delays on the Buffalo Niagara Intl. Airport (BUF) to Rapid City Regional Airport (RAP) route, travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**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 Buffalo Niagara Intl. Airport (BUF) to Rapid City Regional Airport (RAP) last-minute?
Booking your ticket from BUF to RAP just before your getaway is usually more expensive. But if you're flexible with your departure dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a BUF to RAP flight and hotel package?
Compared with arranging flights and hotels separately, booking a BUF to RAP flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the stress out of travel planning. Just secure your flights and choose from our extensive range of stays, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Rapid City Regional Airport (RAP)?
If you reserved your BUF to RAP flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

*Flight schedules are subject to change.

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*Available to One Key members.