$376+ Cheap flights from Rapid City to Buffalo (RAP - BUF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — BUF
Sep 28 — Oct 51
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Rapid City to Buffalo with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Rapid City to Buffalo
Cheapest
Best
Last-minute
One-way
Cheapest flights from Rapid City to BuffaloExplore the most affordable flight options available from Rapid City to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 29, 2026.
Explore the most affordable flight options available from Rapid City to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 29, 2026.
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:05 am -
2 stops14h 06m
Sat 10/247:00 am -
1 stop5h 15m
Deal found 8/27![United Airlines logo]()
$434
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:36 pm -
1 stop5h 31m
Tue 9/1510:30 am -
2 stops12h 08m
Deal found 8/27![United Airlines logo]()
$442
This American Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:51 pm -
1 stop7h 57m
Sun 11/17:00 am -
1 stop7h 39m
Deal found 8/28![American Airlines logo]()
$500
This American Airlines deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:00 am -
1 stop7h 51m
Fri 11/2712:04 pm -
2 stops11h 30m
Deal found 8/25![American Airlines logo]()
$511
This American Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:36 pm -
1 stop7h 34m
Tue 9/154:47 pm -
1 stop6h 36m
Deal found 8/27![American Airlines logo]()
$524
This American Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:07 pm -
1 stop15h 32m
Fri 9/254:47 pm -
1 stop6h 36m
Deal found 8/26![American Airlines logo]()
$527
Best flights from Rapid City to BuffaloDiscover carefully curated flight deals from Rapid City to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 29, 2026.
Discover carefully curated flight deals from Rapid City to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 29, 2026.
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:05 am -
2 stops14h 06m
Sat 10/247:00 am -
1 stop5h 15m
Deal found 8/28![United Airlines logo]()
$434
This American Airlines deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am -
2 stops15h 59m
Sun 11/17:00 am -
1 stop7h 39m
Deal found 8/25![American Airlines logo]()
$531
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:36 pm -
1 stop5h 31m
Tue 9/1510:30 am -
2 stops12h 08m
Deal found 8/27![United Airlines logo]()
$442
Last-minute flights from Rapid City to BuffaloDiscover last-minute flight deals from Rapid City to Buffalo. Data last updated August 29, 2026 and is based on user searches.
Discover last-minute flight deals from Rapid City to Buffalo. Data last updated August 29, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:36 pm -
1 stop5h 31m
Tue 9/1510:30 am -
2 stops12h 08m
Deal found 8/27![United Airlines logo]()
$442
This American Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:36 pm -
1 stop7h 34m
Tue 9/154:47 pm -
1 stop6h 36m
Deal found 8/27![American Airlines logo]()
$524
This American Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:07 pm -
1 stop15h 32m
Fri 9/254:47 pm -
1 stop6h 36m
Deal found 8/26![American Airlines logo]()
$527
This United Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:48 pm -
2 stops17h 28m
Fri 9/255:45 pm -
3 stops29h 07m
Deal found 8/26![United Airlines logo]()
$756
This American Airlines deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:07 pm -
1 stop21h 11m
Thu 10/14:47 pm -
1 stop7h 05m
Deal found 8/25![American Airlines logo]()
$575
One-way flights from Rapid City to BuffaloSearch for one-way flight options from Rapid City to Buffalo. Find affordable one-way fares based on user searches. Data last updated August 29, 2026.
Search for one-way flight options from Rapid City to Buffalo. Find affordable one-way fares based on user searches. Data last updated August 29, 2026.
This Delta deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:46 am -
1 stop5h 37m
Deal found 8/27![Delta logo]()
$376
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:55 am -
2 stops10h 12m
Deal found 8/27![United Airlines logo]()
$381
Find flight deals from Rapid City to Buffalo
Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Buffalo (BUF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $434 (United Airlines) |
One-way from | $376 (Delta) |
Cheapflights Fare Finder
Customize your flight search to find flights from Rapid City to Buffalo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 29, 2026.
Use the filters below to find and compare flights from Rapid City to Buffalo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Rapid CityBuffalo
RAP Rapid City - BUF Buffalo
RAPBUF
Rapid City
Tue 10/20
7:05 am-11:11 pm
2 stops14h 06m
Buffalo
Sat 10/24
7:00 am-10:15 am
1 stop5h 15m
$434
Quickest round-trip
Rapid CityBuffalo
RAP Rapid City - BUF Buffalo
RAPBUF
Rapid City
Fri 9/11
1:36 pm-9:07 pm
1 stop5h 31m
Buffalo
Tue 9/15
10:30 am-8:38 pm
2 stops12h 08m
$442
Rapid CityBuffalo
RAP Rapid City - BUF Buffalo
RAPBUF
Rapid City
Thu 10/29
6:00 am-11:59 pm
2 stops15h 59m
Buffalo
Sun 11/1
7:00 am-12:39 pm
1 stop7h 39m
$531
Sorted by cheapest first
Compare providers for flights from Rapid City to Buffalo
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Rapid City to Buffalo in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Rapid City-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rapid City-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rapid City-Buffalo flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Rapid City-Buffalo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rapid City-Buffalo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Rapid City to Buffalo
Have a flexible travel schedule? Discover the best time to fly to Buffalo from Rapid City with our price prediction graph.
RAP-BUF
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Buffalo
Get insights into the airlines that provide service to Buffalo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buffalo. Reviews last updated August 29, 2026.
Read reviews from past customers who have flown United Airlines from Rapid City to Buffalo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Overall
7.4
Boarding
7.7
Food
6.7
Comfort
7.3
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Overall
7.4
Boarding
7.7
Food
6.7
Comfort
7.3
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Related info for your journey
Find useful and relevant information for your journey from Rapid City to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Buffalo?
Book flights to Buffalo if you plan to visit one of these locationsLockport
Cheektowaga
Amherst
Williamsville
Orchard Park
Eden
Bowmansville
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Buffalo flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Rapid City
Popular flights
Alternative routes for Rapid City to Buffalo
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Buffalo
Explore flights to Buffalo departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 29, 2026.
Complete your trip
Complete your trip to Buffalo by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Rapid City to Buffalo by cabin class
Find flights from Rapid City to Buffalo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Rapid City and Buffalo flights
Browse other Rapid City and Buffalo flight options. Last updated on August 29, 2026.
Other flights from Rapid City
Browse through other flights departing from Rapid City. Flights are based on user searches made on Cheapflights and were last updated on August 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Rapid City to Buffalo
Discover the top airline that operate flights from Rapid City to Buffalo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$531 | FlexibilityNo cancel fee | On-time69% |