$167 Cheap Flights from Buffalo (BUF) to Rapid City (RAP)

Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $167 for one-way flights and $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
United
American Airlines
American Airlines
United
United
United
United
United
Delta
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
$268
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 July. 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 2025. You can also book with separate airlines for your outbound and return journeys, from $167 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?
Discover the latest flight deals from BUF to RAP by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BUF to RAP?
The cheapest flights from BUF to RAP are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BUF to RAP?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from BUF to RAP. Sort your results by “Price (lowest to highest)” to snap up a great deal.
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.

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*Available to One Key members.