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Rapid City

$346+ Cheap flights from Idaho Falls to Rapid City (IDA - RAP)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — RAP
Sep 2 — Sep 91
Wed 9/2
Wed 9/9
1 adult, Economy
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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 3, 2026.

This United Airlines deal was found by Cheapflights users on 8/3. 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 9/254:05 pm
IDA
-
RAP
1 stop6h 25m
United Airlines
Tue 9/295:00 am
RAP
-
IDA
1 stop4h 53m
United Airlines
Deal found 8/3$346
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/115:53 pm
IDA
-
RAP
1 stop4h 40m
United Airlines
Mon 9/147:00 am
RAP
-
IDA
1 stop6h 29m
United Airlines
Deal found 8/3$383
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/144:04 pm
IDA
-
RAP
1 stop6h 24m
United Airlines
Tue 8/188:55 am
RAP
-
IDA
1 stop6h 28m
United Airlines
Deal found 7/30$399
This United Airlines deal was found by Cheapflights users on 8/3. 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.
Tue 9/12:25 pm
IDA
-
RAP
1 stop6h 12m
United Airlines
Mon 9/77:00 am
RAP
-
IDA
1 stop6h 29m
United Airlines
Deal found 8/3$414
This United Airlines deal was found by Cheapflights users on 7/30. 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
IDA
-
RAP
1 stop6h 08m
United Airlines
Sun 11/15:00 am
RAP
-
IDA
1 stop4h 53m
United Airlines
Deal found 7/30$434
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 11/34:30 pm
IDA
-
RAP
1 stop5h 59m
United Airlines
Sat 11/77:00 am
RAP
-
IDA
1 stop6h 28m
United Airlines
Deal found 7/30$474

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 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$399
(United Airlines)
Provider with most accurate pricing for Idaho Falls Fanning Field-Rapid City flight deals.
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Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Rapid City flights.
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From Idaho Falls Fanning Field to Rapid City
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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 3, 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 - RAP

IDARAP

Idaho Falls Fanning Field

Fri 9/25

4:05 pm-10:30 pm

1 stop6h 25m

Rapid City

Tue 9/29

5:00 am-9:53 am

1 stop4h 53m

$346

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 8/14

4:04 pm-10:28 pm

1 stop6h 24m

Rapid City

Tue 8/18

8:55 am-3:23 pm

1 stop6h 28m

$399

Idaho FallsRapid City

IDA - RAP

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

$434
Quickest round-trip

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Tue 11/3

4:30 pm-8:43 pm

1 stop4h 13m

Rapid City

Sat 11/7

5:00 am-9:53 am

1 stop4h 53m

$434

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

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 25m. 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

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