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

View $216 flight on Tue, May 5, 2026Opens in a new window

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

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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.

American Airlines
Tue, May 5 - Tue, May 12
BUF
Buffalo
RAP
Rapid City
$289 Roundtrip, found 6 hours ago
$289
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, May 5 from Buffalo to Rapid City, returning Tue, May 12, priced at $289 found 6 hours ago
United
Tue, May 5 - Tue, May 12
BUF
Buffalo
RAP
Rapid City
$294 Roundtrip, found 6 hours ago
$294
Roundtrip
found 6 hours ago
Select United flight, departing Tue, May 5 from Buffalo to Rapid City, returning Tue, May 12, priced at $294 found 6 hours ago
United
Tue, Aug 25 - Tue, Sep 1
BUF
Buffalo
RAP
Rapid City
$309 Roundtrip, found 3 days ago
$309
Roundtrip
found 3 days ago
Select United flight, departing Tue, Aug 25 from Buffalo to Rapid City, returning Tue, Sep 1, priced at $309 found 3 days ago
Delta
Sat, Aug 22 - Sun, Sep 6
BUF
Buffalo
RAP
Rapid City
$314 Roundtrip, found 2 days ago
$314
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Aug 22 from Buffalo to Rapid City, returning Sun, Sep 6, priced at $314 found 2 days ago
Delta
Mon, Mar 9 - Wed, Mar 25
BUF
Buffalo
RAP
Rapid City
$325 Roundtrip, found 6 days ago
$325
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Mar 9 from Buffalo to Rapid City, returning Wed, Mar 25, priced at $325 found 6 days ago
United
Tue, May 5 - Tue, May 12
BUF
Buffalo
RAP
Rapid City
$328 Roundtrip, found 6 hours ago
$328
Roundtrip
found 6 hours ago
Select United flight, departing Tue, May 5 from Buffalo to Rapid City, returning Tue, May 12, priced at $328 found 6 hours ago
United
Thu, Aug 20 - Tue, Aug 25
BUF
Buffalo
RAP
Rapid City
$332 Roundtrip, found 6 days ago
$332
Roundtrip
found 6 days ago
Select United flight, departing Thu, Aug 20 from Buffalo to Rapid City, returning Tue, Aug 25, priced at $332 found 6 days ago
United
Tue, May 5 - Tue, May 12
BUF
Buffalo
RAP
Rapid City
$333 Roundtrip, found 6 hours ago
$333
Roundtrip
found 6 hours ago
Select United flight, departing Tue, May 5 from Buffalo to Rapid City, returning Tue, May 12, priced at $333 found 6 hours ago
United
Tue, Aug 25 - Tue, Sep 1
BUF
Buffalo
RAP
Rapid City
$334 Roundtrip, found 3 days ago
$334
Roundtrip
found 3 days ago
Select United flight, departing Tue, Aug 25 from Buffalo to Rapid City, returning Tue, Sep 1, priced at $334 found 3 days ago
United
Tue, May 5 - Tue, May 12
BUF
Buffalo
RAP
Rapid City
$336 Roundtrip, found 6 hours ago
$336
Roundtrip
found 6 hours ago
Select United flight, departing Tue, May 5 from Buffalo to Rapid City, returning Tue, May 12, priced at $336 found 6 hours ago

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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 $394
RAP
Rapid City Regional
CheapestClosest
Average driving time to city center16 min
Flights from $394

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.

Frequently asked questions

How much does a flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional) cost?
You can find cheap one-way flights from $216 and cheap return flights from $289 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional) with Expedia. One-way flights usually range from $238 to $946, and return flights typically cost between $375 and $1453. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional)?
The cheapest month to fly from BUF to RAP is May when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional)?
Enter BUF to RAP and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional)?
American Airlines is one of the cheapest airlines offering connecting flights from Buffalo, NY (BUF) to Rapid City, SD (RAP) with a layover in Charlotte-Douglas Intl. (CLT), starting from around $719. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional)?
To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional)?
The earliest flight from Buffalo Niagara International Airport (BUF) to Rapid City Regional Airport (RAP) usually departs at around 5:05 AM. This seasonal service is available in July, allowing you to arrive in Rapid City early in the day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional)?
The most popular departure times for flights from Buffalo, NY (BUF) to Rapid City, SD (RAP) are in the early morning, from 6am to 9am. This accounts for around 56% of total traffic. Many major carriers, including United Airlines and American Airlines, offer flights during this window. Many travelers prefer this time because it allows for a full day of activities upon arrival.
How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional)?
Flying from BUF to RAP with a connection usually takes about 6 hours 50 minutes, traveling roughly 1,217 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional)?
First class seats are offered on the BUF to RAP route. First class cabins are available on:

  • American Airlines
  • Delta Air Lines
  • United Airlines

How do I earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional) flight with Expedia?
It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Rapid City from Buffalo Niagara Intl. (BUF)?
If you're planning to travel to Rapid City from Buffalo Niagara Intl. (BUF), you can fly into Rapid City Regional (RAP) Some flights may connect through major hubs like O'Hare Intl. (ORD), Washington Dulles Intl. (IAD), LaGuardia (LGA) before reaching Rapid City. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional) at the last minute?
Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional) flight and hotel package?
Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional) Rapid City Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional)?
If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Rapid City, SD (RAP-Rapid City Regional) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Rapid City Regional
Airlines serving
American Airlines, Delta, United
Roundtrip price
$288
Distance
1217 mi

Book with confidence

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 May. 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.

 

Buffalo to Rapid City Flights

*Flight schedules are subject to change.

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*Available to One Key members.