$299 Cheap Flights from Rapid City (RAP) to Grand Forks (GFK)

View $299 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from Rapid City Regional Airport (RAP) to Grand Forks, ND (GFK-Grand Forks Intl.)

Cheap Flights from Rapid City to Grand Forks (RAP-GFK)

Prices were available within the past 7 days and start at $299 for one-way flights and $307 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Nov 4 - Tue, Nov 18
RAP
Rapid City
GFK
Grand Forks
$307 Roundtrip, found 2 days ago
$307
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Nov 4 from Rapid City to Grand Forks, returning Tue, Nov 18, priced at $307 found 2 days ago
Delta
Sat, Nov 1 - Tue, Nov 18
RAP
Rapid City
GFK
Grand Forks
$317 Roundtrip, found 2 days ago
$317
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Nov 1 from Rapid City to Grand Forks, returning Tue, Nov 18, priced at $317 found 2 days ago
Delta
Sat, Nov 1 - Mon, Nov 17
RAP
Rapid City
GFK
Grand Forks
$327 Roundtrip, found 2 days ago
$327
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Nov 1 from Rapid City to Grand Forks, returning Mon, Nov 17, priced at $327 found 2 days ago
Delta
Sun, Dec 14 - Sat, Jan 3
RAP
Rapid City
GFK
Grand Forks
$337 Roundtrip, found 2 days ago
$337
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Dec 14 from Rapid City to Grand Forks, returning Sat, Jan 3, priced at $337 found 2 days ago
Delta
Thu, Oct 23 - Mon, Oct 27
RAP
Rapid City
GFK
Grand Forks
$347 Roundtrip, found 13 hours ago
$347
Roundtrip
found 13 hours ago
Select Delta flight, departing Thu, Oct 23 from Rapid City to Grand Forks, returning Mon, Oct 27, priced at $347 found 13 hours ago
Delta
Tue, Oct 14 - Sun, Oct 19
RAP
Rapid City
GFK
Grand Forks
$387 Roundtrip, found 1 day ago
$387
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Oct 14 from Rapid City to Grand Forks, returning Sun, Oct 19, priced at $387 found 1 day ago
Delta
Thu, Oct 23 - Mon, Oct 27
RAP
Rapid City
GFK
Grand Forks
$407 Roundtrip, found 13 hours ago
$407
Roundtrip
found 13 hours ago
Select Delta flight, departing Thu, Oct 23 from Rapid City to Grand Forks, returning Mon, Oct 27, priced at $407 found 13 hours ago
Delta
Tue, Dec 9 - Wed, Dec 24
RAP
Rapid City
GFK
Grand Forks
$407 Roundtrip, found 2 days ago
$407
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Dec 9 from Rapid City to Grand Forks, returning Wed, Dec 24, priced at $407 found 2 days ago
Delta
Tue, Nov 4 - Thu, Nov 20
RAP
Rapid City
GFK
Grand Forks
$413 Roundtrip, found 2 days ago
$413
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Nov 4 from Rapid City to Grand Forks, returning Thu, Nov 20, priced at $413 found 2 days ago
Delta
Sat, Dec 6 - Wed, Dec 24
RAP
Rapid City
GFK
Grand Forks
$417 Roundtrip, found 2 days ago
$417
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Dec 6 from Rapid City to Grand Forks, returning Wed, Dec 24, priced at $417 found 2 days ago

Alternative airports near Grand Forks

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

Select flight to Grand Forks Intl. GFK. Cheapest and Closest option available. Average driving time to city center is 12 minutes. Flights from $387
GFK
Grand Forks Intl.
CheapestClosest
Average driving time to city center12 min
Flights from $387
Flights from Rapid City (RAP) to Grand Forks (GFK)
Origin airport
Rapid City Regional
Destination airport
Grand Forks Intl.
Airlines serving
Delta
Roundtrip price
$306
Distance
390 mi

Rapid City to Grand Forks Flights

The cheapest times to fly from Rapid City to Grand Forks

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

 

The best time to book a flight from Rapid City to Grand Forks

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

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 Grand Forks in 2025. You can also book with separate airlines for your outbound and return journeys, from $299 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 Grand Forks 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 Grand Forks 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 Grand Forks Intl. Airport (GFK) cost?
Snag a cheap one-way flight from $299 or cheap return flight from $307 from Rapid City Regional Airport (RAP) to Grand Forks Intl. Airport (GFK) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Rapid City Regional Airport (RAP) to Grand Forks Intl. Airport (GFK)?
November is the most affordable month to fly from RAP to GFK. Timing your trip outside of the busy season is often the key to better flight prices.
What is the cheapest airline that flies from Rapid City Regional Airport (RAP) to Grand Forks Intl. Airport (GFK)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest RAP to GFK flight.
How many flights per day from Rapid City Regional Airport (RAP) to Grand Forks Intl. Airport (GFK)?
You'll have to hop on a flight with a layover when traveling from Rapid City Regional Airport (RAP) to Grand Forks Intl. Airport (GFK). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from RAP to GFK?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*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 Grand Forks Intl. Airport (GFK)?
To reach Grand Forks Intl. Airport (GFK) on time, book a flight that leaves Rapid City Regional Airport (RAP) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Grand Forks Intl. Airport (GFK) last-minute?
Holding off until just before your trip to book a flight from RAP to GFK generally means paying more. While you may come across some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule for a better chance of landing a bargain.
Is it cheaper to book a RAP to GFK flight and hotel package?
Booking a RAP to GFK flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our wide range of hotels and then add car rentals, activities and flights 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 Grand Forks Intl. Airport (GFK)?
If you booked your RAP to GFK flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare 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, head to our Customer Service portal for more details.

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*Available to One Key members.