$175 Cheap Flights from Rochester (RST) to Rapid City (RAP)

View $175 flight on Sun, Oct 5, 2025Opens in a new window

Popular airlines from Rochester, MN (RST-Rochester Intl.) to Rapid City Regional Airport (RAP)

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Cheap Flights from Rochester to Rapid City (RST-RAP)

Prices were available within the past 7 days and start at $175 for one-way flights and $290 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Sep 30 - Tue, Oct 14
RST
Rochester
RAP
Rapid City
$290 Roundtrip, found 2 days ago
$290
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Sep 30 from Rochester to Rapid City, returning Tue, Oct 14, priced at $290 found 2 days ago
Delta
Sun, Sep 28 - Tue, Oct 7
RST
Rochester
RAP
Rapid City
$313 Roundtrip, found 2 days ago
$313
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Sep 28 from Rochester to Rapid City, returning Tue, Oct 7, priced at $313 found 2 days ago
Delta
Sun, Sep 28 - Fri, Oct 10
RST
Rochester
RAP
Rapid City
$319 Roundtrip, found 2 days ago
$319
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Sep 28 from Rochester to Rapid City, returning Fri, Oct 10, priced at $319 found 2 days ago
Delta
Tue, Sep 30 - Mon, Oct 20
RST
Rochester
RAP
Rapid City
$323 Roundtrip, found 2 days ago
$323
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Sep 30 from Rochester to Rapid City, returning Mon, Oct 20, priced at $323 found 2 days ago
Delta
Wed, Oct 22 - Tue, Nov 4
RST
Rochester
RAP
Rapid City
$336 Roundtrip, found 3 days ago
$336
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Oct 22 from Rochester to Rapid City, returning Tue, Nov 4, priced at $336 found 3 days ago
Delta
Wed, Nov 5 - Fri, Nov 7
RST
Rochester
RAP
Rapid City
$340 Roundtrip, found 4 days ago
$340
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Nov 5 from Rochester to Rapid City, returning Fri, Nov 7, priced at $340 found 4 days ago
Delta
Wed, Oct 1 - Tue, Oct 14
RST
Rochester
RAP
Rapid City
$343 Roundtrip, found 2 days ago
$343
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Oct 1 from Rochester to Rapid City, returning Tue, Oct 14, priced at $343 found 2 days ago
Delta
Fri, Sep 19 - Wed, Oct 1
RST
Rochester
RAP
Rapid City
$346 Roundtrip, found 2 days ago
$346
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Sep 19 from Rochester to Rapid City, returning Wed, Oct 1, priced at $346 found 2 days ago
Delta
Sun, Oct 5 - Tue, Oct 7
RST
Rochester
RAP
Rapid City
$348 Roundtrip, found 4 days ago
$348
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Oct 5 from Rochester to Rapid City, returning Tue, Oct 7, priced at $348 found 4 days ago
American Airlines
Sun, Oct 5 - Tue, Oct 7
RST
Rochester
RAP
Rapid City
$356 Roundtrip, found 4 days ago
$356
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Oct 5 from Rochester to Rapid City, returning Tue, Oct 7, priced at $356 found 4 days 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 $463
RAP
Rapid City Regional
CheapestClosest
Average driving time to city center16 min
Flights from $463
Flights from Rochester (RST) to Rapid City (RAP)
Origin airport
Rochester Intl.
Destination airport
Rapid City Regional
Airlines serving
American Airlines, Delta
Roundtrip price
$284
Distance
525 mi

Rochester to Rapid City Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Rochester 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 Rochester 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 Rochester to Rapid City in 2025. You can also book with separate airlines for your outbound and return journeys, from $175 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 Rochester 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 Rochester 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 Rochester Intl. Airport (RST) to Rapid City Regional Airport (RAP) cost?
Snag a cheap one-way flight from $175 or cheap return flight from $290 from Rochester Intl. Airport (RST) 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 Rochester Intl. Airport (RST) to Rapid City Regional Airport (RAP)?
Planning your getaway for September can help you save, as it's the cheapest month for flights between RST and RAP. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Rochester Intl. Airport (RST) to Rapid City Regional Airport (RAP)?
To find the cheapest airline flying from RST to RAP, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Rochester Intl. Airport (RST) to Rapid City Regional Airport (RAP)?
Direct flights from Rochester Intl. Airport (RST) to Rapid City Regional Airport (RAP) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from RST to RAP?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can vary based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Rochester Intl. Airport (RST) to Rapid City Regional Airport (RAP)?
To avoid potential delays on the Rochester Intl. Airport (RST) to Rapid City Regional Airport (RAP) route, fly before 3 PM. Later flights are 22% more likely to be canceled.**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 Rochester Intl. Airport (RST) to Rapid City Regional Airport (RAP) last-minute?
Holding off until just before your departure to book your flight from RST to RAP often results in higher prices. While it's possible to find some last-minute offers, there's no guarantee. Keep your travel plans flexible to boost your chances of scoring a bargain.
Is it cheaper to book a RST to RAP flight and hotel package?
You'll typically save money by booking a RST to RAP flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've chosen your preferred flights and accommodations, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Rochester Intl. Airport (RST) to Rapid City Regional Airport (RAP)?
If you reserved your RST to RAP flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

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*Available to One Key members.