HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Rapid City

$264+ Cheap flights from Idaho Falls to Rapid City (IDA - RAP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — RAP
Sep 13 — Sep 201
Sun 9/13
Sun 9/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho Falls to Rapid City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Idaho Falls to Rapid City

Cheapest flights from Idaho Falls to Rapid City
Explore the most affordable flight options available from Idaho Falls to Rapid City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2026.

This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/282:25 pm -
1 stop6h 12m
Tue 9/111:22 am -
1 stop4h 01m
Deal found 8/13$329
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:35 pm -
1 stop6h 08m
Wed 11/185:00 am -
1 stop4h 53m
Deal found 8/12$369
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:05 pm -
1 stop4h 47m
Sat 10/245:00 am -
1 stop4h 53m
Deal found 8/8$434
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/252:35 pm -
1 stop6h 08m
Sun 11/15:00 am -
1 stop4h 53m
Deal found 8/12$474
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/244:04 pm -
1 stop6h 24m
Fri 8/2812:30 pm -
1 stop26h 53m
Deal found 8/9$553
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:37 pm -
2 stops15h 36m
Mon 11/309:13 am -
1 stop27h 48m
Deal found 8/10$567
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:18 pm -
1 stop18h 55m
Mon 11/309:13 am -
1 stop27h 48m
Deal found 8/10$644

Find flight deals from Idaho Falls to Rapid City

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Rapid City (RAP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(United Airlines)

One-way from

$264
(United Airlines)
Provider with most accurate pricing for Idaho Falls Fanning Field-Rapid City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Rapid City flights.
Search Deals
From Idaho Falls Fanning Field to Rapid City
Search Deals
One-way flight from Idaho Falls Fanning Field to Rapid City
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Rapid City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2026.
Use the filters below to find and compare flights from Idaho Falls to Rapid City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Idaho FallsRapid City

IDA Idaho Falls Fanning Field - RAP Rapid City

IDARAP

Idaho Falls Fanning Field

Fri 8/28

2:25 pm-8:37 pm

1 stop6h 12m

Rapid City

Tue 9/1

11:22 am-3:23 pm

1 stop4h 01m

$329
Quickest round-trip

Idaho FallsRapid City

IDA Idaho Falls Fanning Field - RAP Rapid City

IDARAP

Idaho Falls Fanning Field

Wed 10/21

4:05 pm-8:52 pm

1 stop4h 47m

Rapid City

Sat 10/24

5:00 am-9:53 am

1 stop4h 53m

$449

Idaho FallsRapid City

IDA Idaho Falls Fanning Field - RAP Rapid City

IDARAP

Idaho Falls Fanning Field

Sun 10/25

2:35 pm-8:43 pm

1 stop6h 08m

Rapid City

Sun 11/1

5:00 am-9:53 am

1 stop4h 53m

$474

Idaho FallsRapid City

IDA Idaho Falls Fanning Field - RAP Rapid City

IDARAP

Idaho Falls Fanning Field

Wed 11/25

6:37 pm-10:13 am

2 stops15h 36m

Rapid City

Mon 11/30

9:13 am-1:01 pm

1 stop27h 48m

$567

Idaho FallsRapid City

IDA Idaho Falls Fanning Field - RAP Rapid City

IDARAP

Idaho Falls Fanning Field

Sat 11/14

4:30 pm-10:31 am

2 stops18h 01m

Rapid City

Wed 11/18

5:00 am-9:53 am

1 stop4h 53m

$569

Idaho FallsRapid City

IDA Idaho Falls Fanning Field - RAP Rapid City

IDARAP

Idaho Falls Fanning Field

Wed 11/25

3:18 pm-10:13 am

1 stop18h 55m

Rapid City

Mon 11/30

9:13 am-1:01 pm

1 stop27h 48m

$644
Cheapest one-way
Quickest one-way

Idaho FallsRapid City

IDA Idaho Falls Fanning Field - RAP Rapid City

IDARAP

Idaho Falls Fanning Field

Thu 10/29

2:35 pm-7:19 pm

1 stop4h 44m

$264

Idaho FallsRapid City

IDA Idaho Falls Fanning Field - RAP Rapid City

IDARAP

Idaho Falls Fanning Field

Wed 10/28

5:40 pm-10:31 am

2 stops16h 51m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Idaho Falls-Rapid City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Rapid City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-Rapid City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Idaho Falls-Rapid City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Idaho Falls-Rapid City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Idaho Falls to Rapid City

Have a flexible travel schedule? Discover the best time to fly to Rapid City from Idaho Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Rapid City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Idaho Falls to Rapid City?

    Departing from Idaho Falls to Rapid City will take you 6h 12m. There are 450 mi between Idaho Falls and Rapid City.

  • Can I find deals for flights from Idaho Falls to Rapid City that include hotel bookings?

    Yes. In addition to deals on Idaho Falls to Rapid City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho Falls to Rapid City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to Rapid City.

  • Can I find deals for business class flights from Idaho Falls to Rapid City?

    Yes. Cheapflights offers flight deals from Idaho Falls to Rapid City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Rapid City?

Book flights to Rapid City if you plan to visit one of these locations
Keystone
Deadwood
Spearfish

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho Falls to Rapid City

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Sioux Falls flights
Spokane to Sioux Falls flights
Spokane to Rapid City flights
Boise to Rapid City flights
Jackson to Rapid City flights
Lewiston to Rapid City flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.