Cheap Flights from Rapid City (RAP) to Rock Springs (RKS)

Popular airlines from Rapid City Regional Airport (RAP) to Rock Springs, WY (RKS-Sweetwater County)

Frequently asked questions

How much does a flight from Rapid City Regional Airport (RAP) to Sweetwater County Airport (RKS) cost?
Lock in a cheap one-way flight or cheap return flight from Rapid City Regional Airport (RAP) to Sweetwater County Airport (RKS) 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 Sweetwater County Airport (RKS)?
is the least expensive month to fly from RAP to RKS. Traveling outside of peak seasons is often the key to finding better deals on flights.
What is the cheapest airline that flies from Rapid City Regional Airport (RAP) to Sweetwater County Airport (RKS)?
To find the cheapest airline flying from RAP to RKS, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Rapid City Regional Airport (RAP) to Sweetwater County Airport (RKS)?
Direct flights from Rapid City Regional Airport (RAP) to Sweetwater County Airport (RKS) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from RAP to RKS?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary 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 Sweetwater County Airport (RKS)?
To avoid possible delays on the Rapid City Regional Airport (RAP) to Sweetwater County Airport (RKS) route, aim to fly before 3 PM. Departures after this time 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 Rapid City Regional Airport (RAP) to Sweetwater County Airport (RKS) last-minute?
Waiting until just before your departure to book a flight from RAP to RKS generally means paying more. While you might find some last-minute offers, they aren't always guaranteed. Keep your travel schedule open to boost your chances of getting a bargain.
Is it cheaper to book a RAP to RKS flight and hotel package?
Compared with arranging hotels and flights separately, booking a RAP to RKS flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place will take the stress out of travel planning. Simply secure your flights and select from our extensive range of stays, then tailor your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Rapid City Regional Airport (RAP) to Sweetwater County Airport (RKS)?
If you booked your RAP to RKS flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket 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, head to our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Rapid City Regional
Destination airport
Sweetwater County
Distance
348 mi

Book with confidence

Book with confidence

Rapid City to Rock Springs Flights

The cheapest times to fly from Rapid City to Rock Springs

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

 

The best time to book a flight from Rapid City to Rock Springs

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

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 Rock Springs in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Rock Springs 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 Rock Springs 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.

 

Rapid City to Rock Springs Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.