$228 Cheap Flights from Rapid City (RAP) to Sioux Falls (FSD)

View $228 flight on Sat, Jan 31, 2026Opens in a new window

Popular airlines from Rapid City Regional Airport (RAP) to Sioux Falls Regional Airport (FSD)

Cheap Flights from Rapid City to Sioux Falls (RAP-FSD)

Prices were available within the past 7 days and start at $228 for one-way flights and $229 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Jan 31 - Mon, Feb 2
RAP
Rapid City
FSD
Sioux Falls
$229 Roundtrip, found 5 hours ago
$229
Roundtrip
found 5 hours ago
Select Delta flight, departing Sat, Jan 31 from Rapid City to Sioux Falls, returning Mon, Feb 2, priced at $229 found 5 hours ago
Delta
Thu, Dec 4 - Sat, Dec 6
RAP
Rapid City
FSD
Sioux Falls
$234 Roundtrip, found 2 days ago
$234
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Dec 4 from Rapid City to Sioux Falls, returning Sat, Dec 6, priced at $234 found 2 days ago
United
Fri, Jan 30 - Sun, Feb 1
RAP
Rapid City
FSD
Sioux Falls
$239 Roundtrip, found 3 days ago
$239
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 30 from Rapid City to Sioux Falls, returning Sun, Feb 1, priced at $239 found 3 days ago
United
Thu, Oct 16 - Thu, Oct 23
RAP
Rapid City
FSD
Sioux Falls
$248 Roundtrip, found 1 day ago
$248
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 16 from Rapid City to Sioux Falls, returning Thu, Oct 23, priced at $248 found 1 day ago
United
Fri, Dec 5 - Sat, Dec 6
RAP
Rapid City
FSD
Sioux Falls
$248 Roundtrip, found 3 days ago
$248
Roundtrip
found 3 days ago
Select United flight, departing Fri, Dec 5 from Rapid City to Sioux Falls, returning Sat, Dec 6, priced at $248 found 3 days ago
Delta
Sat, Oct 18 - Sat, Oct 25
RAP
Rapid City
FSD
Sioux Falls
$259 Roundtrip, found 2 days ago
$259
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Oct 18 from Rapid City to Sioux Falls, returning Sat, Oct 25, priced at $259 found 2 days ago
Delta
Sat, Oct 18 - Sun, Oct 19
RAP
Rapid City
FSD
Sioux Falls
$264 Roundtrip, found 2 days ago
$264
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Oct 18 from Rapid City to Sioux Falls, returning Sun, Oct 19, priced at $264 found 2 days ago
United
Fri, Oct 17 - Sun, Oct 19
RAP
Rapid City
FSD
Sioux Falls
$272 Roundtrip, found 3 days ago
$272
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 17 from Rapid City to Sioux Falls, returning Sun, Oct 19, priced at $272 found 3 days ago
United
Fri, Jan 30 - Sun, Feb 1
RAP
Rapid City
FSD
Sioux Falls
$274 Roundtrip, found 3 days ago
$274
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 30 from Rapid City to Sioux Falls, returning Sun, Feb 1, priced at $274 found 3 days ago
American Airlines
Sat, Jan 31 - Mon, Feb 2
RAP
Rapid City
FSD
Sioux Falls
$398 Roundtrip, found 5 hours ago
$398
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Sat, Jan 31 from Rapid City to Sioux Falls, returning Mon, Feb 2, priced at $398 found 5 hours ago

Find the cheapest month to fly from Rapid City (RAP) to Sioux Falls (FSD)

May is typically the cheapest month to fly

From $228 - $536 per traveler.

Alternative airports near Sioux Falls

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sioux Falls Regional FSD. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $368
FSD
Sioux Falls Regional
CheapestClosest
Average driving time to city center6 min
Flights from $368
Flights from Rapid City (RAP) to Sioux Falls (FSD)
Origin airport
Rapid City Regional
Destination airport
Sioux Falls Regional
Airlines serving
American Airlines, Delta, United
Roundtrip price
$228
Distance
316 mi

Rapid City to Sioux Falls Flights

The cheapest times to fly from Rapid City to Sioux Falls

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 Rapid City to Sioux Falls are during the month of January. You can find some of the cheapest flights from Rapid City to Sioux Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Rapid City to Sioux Falls

Sunday is one of the best days to book for cheap flights from Rapid City to Sioux Falls: 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 Rapid City to Sioux Falls

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 Rapid City to Sioux Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $228 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 Rapid City to Sioux Falls 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 Rapid City to Sioux Falls 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 Rapid City Regional Airport (RAP) to Sioux Falls Regional Airport (FSD) cost?
Get a cheap one-way flight from $228 or cheap return flight from $229 from Rapid City Regional Airport (RAP) to Sioux Falls Regional Airport (FSD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Rapid City Regional Airport (RAP) to Sioux Falls Regional Airport (FSD)?
January is the cheapest month to fly from RAP to FSD. Traveling during an off-peak travel window is often the key to better flight prices.
What is the cheapest airline that flies from Rapid City Regional Airport (RAP) to Sioux Falls Regional Airport (FSD)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest RAP to FSD flight.
How many flights per day from Rapid City Regional Airport (RAP) to Sioux Falls Regional Airport (FSD)?
You'll need to take a flight with a layover when traveling from Rapid City Regional Airport (RAP) to Sioux Falls Regional Airport (FSD). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from RAP to FSD?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a number of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Rapid City Regional Airport (RAP) to Sioux Falls Regional Airport (FSD)?
Opt for a flight from Rapid City Regional Airport (RAP) to Sioux Falls Regional Airport (FSD) that leaves before 3 PM to reduce the risk of cancellations. Departures after this hour are on average 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 Rapid City Regional Airport (RAP) to Sioux Falls Regional Airport (FSD) last-minute?
Booking your plane ticket from RAP to FSD right before your journey is usually more expensive. However, if you're flexible with your travel dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a RAP to FSD flight and hotel package?
Booking a RAP to FSD flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our impressive range of hotels 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 Rapid City Regional Airport (RAP) to Sioux Falls Regional Airport (FSD)?
You can usually reschedule or cancel your RAP to FSD flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.