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Rapid City

$316+ 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 6/26. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — RAP
Jun 4 — Jun 111
Thu 6/4
Thu 6/11
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 May 5, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/263:58 pm
IDA
-
RAP
1 stop17h 16m
Allegiant Air
Mon 6/299:50 pm
RAP
-
IDA
1 stop20h 54m
Allegiant Air
Deal found 4/30$316
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/109:49 am
IDA
-
RAP
1 stop11h 22m
Allegiant Air
Wed 8/123:36 pm
RAP
-
IDA
1 stop17h 22m
Allegiant Air
Deal found 5/3$353
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Thu 5/72:31 pm
IDA
-
RAP
1 stop5h 57m
United Airlines
Mon 5/115:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 5/1$385
This United Airlines deal was found by Cheapflights users on 4/30. 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 5/105:26 pm
IDA
-
RAP
1 stop4h 29m
United Airlines
Wed 5/205:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 4/30$409
This United Airlines deal was found by Cheapflights users on 4/30. 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 5/105:26 pm
IDA
-
RAP
1 stop4h 29m
United Airlines
Mon 5/185:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 4/30$429
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 5/165:26 pm
IDA
-
RAP
1 stop4h 29m
United Airlines
Wed 5/205:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 4/30$444
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 5/165:26 pm
IDA
-
RAP
1 stop4h 29m
United Airlines
Mon 5/185:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 4/30$464
This United Airlines deal was found by Cheapflights users on 5/2. 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 6/265:54 pm
IDA
-
RAP
1 stop4h 31m
United Airlines
Tue 6/305:00 am
RAP
-
IDA
1 stop4h 50m
United Airlines
Deal found 5/2$479
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Thu 5/145:26 pm
IDA
-
RAP
1 stop4h 29m
United Airlines
Wed 5/205:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 4/30$484
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 5/165:26 pm
IDA
-
RAP
1 stop4h 29m
United Airlines
Sun 5/175:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 4/30$500
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Thu 5/145:26 pm
IDA
-
RAP
1 stop4h 29m
United Airlines
Mon 5/185:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 4/30$504
This United Airlines deal was found by Cheapflights users on 5/3. 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.
Mon 8/105:54 pm
IDA
-
RAP
1 stop4h 31m
United Airlines
Tue 8/117:00 am
RAP
-
IDA
1 stop6h 24m
United Airlines
Deal found 5/3$517

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 May 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$316
(Kiwi.com)
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

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 May 5, 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
Quickest round-trip

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sat 5/16

5:26 pm-9:55 pm

1 stop4h 29m

Rapid City

Mon 5/18

5:20 am-9:55 am

1 stop4h 35m

$464

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 6/26

5:54 pm-10:25 pm

1 stop4h 31m

Rapid City

Tue 6/30

5:00 am-9:50 am

1 stop4h 50m

$479

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Thu 5/14

5:26 pm-9:55 pm

1 stop4h 29m

Rapid City

Sat 5/16

5:20 am-9:55 am

1 stop4h 35m

$484

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 5/15

5:26 pm-9:55 pm

1 stop4h 29m

Rapid City

Wed 5/20

5:20 am-9:55 am

1 stop4h 35m

$484

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Thu 5/14

5:26 pm-9:55 pm

1 stop4h 29m

Rapid City

Mon 5/18

5:20 am-9:55 am

1 stop4h 35m

$504

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Mon 8/10

5:54 pm-10:25 pm

1 stop4h 31m

Rapid City

Tue 8/11

7:00 am-1:24 pm

1 stop6h 24m

$517

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Mon 6/1

5:54 pm-7:13 pm

1 stop25h 19m

Rapid City

Sun 6/7

5:00 am-9:50 am

1 stop4h 50m

$603

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Thu 5/14

5:26 pm-9:55 pm

1 stop4h 29m

Rapid City

Tue 5/19

7:00 am-1:25 pm

1 stop6h 25m

$608

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sat 5/16

5:26 pm-9:55 pm

1 stop4h 29m

Rapid City

Thu 5/21

11:20 am-9:50 am

1 stop22h 30m

$688

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Thu 5/14

5:26 pm-9:55 pm

1 stop4h 29m

Rapid City

Thu 5/21

7:05 am-9:50 am

1 stop26h 45m

$728

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/2

Showing 1-10 of 14 resultsSorted by cheapest first
1
2
  • 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 4h 29m. 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
Sturgis
Spearfish

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