Cheap Flights from Sun Valley (SUN) to Rapid City (RAP)

Popular airlines from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City Regional Airport (RAP)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Frequently asked questions

How much does a flight from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional) cost?
You can find cheap one-way flights and cheap return flights Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional) with Expedia. Roundtrip flights usually range from $593 to $1492. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional)?
The cheapest month to fly from SUN to RAP is when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional)?
Enter SUN to RAP and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional)?
United is one of the cheapest airlines offering connecting flights from Sun Valley (SUN) to Rapid City (RAP), with round-trip tickets starting from around $593. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional)?
To find a cheap flight from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional)?
The earliest flight from Friedman Memorial (SUN) to Rapid City Regional (RAP) usually departs at 7:00 AM, operated by United Airlines. An early start like this allows you to maximize your time in Rapid City. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional)?
The most popular departure times for flights from Sun Valley, ID (SUN) to Rapid City, SD (RAP) are from 12pm to 3pm. About 46% of passengers prefer this time window. Many major carriers, including United Airlines and Delta, offer flights during this window. This timing works well because it allows you to enjoy a leisurely morning before heading to the airport.
How long does it take to fly from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional)?
A flight from SUN to RAP with a layover takes around 6 hours 20 minutes, with the route covering approximately 562 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional)?
Select the "Business class" and "First class" filters when looking for SUN to RAP flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional) flight with Expedia?
It's easy to earn miles on a Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Rapid City from Friedman Memorial (SUN)?
From Friedman Memorial (SUN), you can fly into Rapid City Regional (RAP) to reach Rapid City. Some flights may connect through major hubs like Salt Lake City Intl. (SLC), Seattle - Tacoma Intl. (SEA) before reaching Rapid City. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional) at the last minute?
Typically, booking a last minute flight from Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional) flight and hotel package?
Securing a Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional) Rapid City Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays 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 Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional)?
If you booked your Sun Valley, ID (SUN-Friedman Memorial) to Rapid City, SD (RAP-Rapid City Regional) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, 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 if you'd like more information.

Travel information

Origin airport
Friedman Memorial
Destination airport
Rapid City Regional
Distance
561 mi

Book with confidence

Sun Valley to Rapid City Flights

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

 

The best time to book a flight from Sun Valley to Rapid City

Sunday is one of the best days to book for cheap flights from Sun Valley 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 Sun Valley 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 Sun Valley to Rapid City in 2026. 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 Sun Valley 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 Sun Valley 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.

 

Sun Valley to Rapid City Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

Explore a world of travel with Expedia