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Rapid City

$362+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — RAP
Apr 19 — Apr 261
Sun 4/19
Sun 4/26
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 March 20, 2026.

This United Airlines deal was found by Cheapflights users on 3/17. 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 7/224:10 pm
IDA
-
RAP
1 stop6h 15m
United Airlines
Wed 7/295:00 am
RAP
-
IDA
1 stop4h 50m
United Airlines
Deal found 3/17$362
This United Airlines deal was found by Cheapflights users on 3/15. 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 5/125:26 pm
IDA
-
RAP
1 stop4h 29m
United Airlines
Sat 5/165:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 3/15$369
This United Airlines deal was found by Cheapflights users on 3/15. 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 5/125:26 pm
IDA
-
RAP
1 stop4h 29m
United Airlines
Fri 5/225:00 am
RAP
-
IDA
1 stop4h 50m
United Airlines
Deal found 3/15$424
This United Airlines deal was found by Cheapflights users on 3/15. 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
Tue 5/195:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 3/15$480
This United Airlines deal was found by Cheapflights users on 3/15. 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 5/125:26 pm
IDA
-
RAP
1 stop4h 29m
United Airlines
Mon 5/185:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 3/15$483
This United Airlines deal was found by Cheapflights users on 3/15. 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 10/245:57 pm
IDA
-
RAP
1 stop4h 11m
United Airlines
Wed 10/2810:45 am
RAP
-
IDA
1 stop6h 37m
United Airlines
Deal found 3/15$503
This United Airlines deal was found by Cheapflights users on 3/15. 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 5/112:31 pm
IDA
-
RAP
1 stop18h 52m
United Airlines
Sat 5/165:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 3/15$533
This United Airlines deal was found by Cheapflights users on 3/15. 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 5/1310:40 am
IDA
-
RAP
1 stop5h 15m
United Airlines
Sun 5/175:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 3/15$538
This United Airlines deal was found by Cheapflights users on 3/18. 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 4/22:30 pm
IDA
-
RAP
1 stop6h 14m
United Airlines
Mon 4/68:30 am
RAP
-
IDA
1 stop25h 23m
United Airlines
Deal found 3/18$573
This United Airlines deal was found by Cheapflights users on 3/15. 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 5/115:26 pm
IDA
-
RAP
1 stop15h 57m
United Airlines
Tue 5/195:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Deal found 3/15$588

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 March 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$362
(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

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 March 20, 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

Wed 7/22

5:54 pm-10:25 pm

1 stop4h 31m

Rapid City

Wed 7/29

5:00 am-9:50 am

1 stop4h 50m

$480

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Wed 5/13

10:40 am-3:55 pm

1 stop5h 15m

Rapid City

Sat 5/16

5:20 am-9:55 am

1 stop4h 35m

$483

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Mon 5/11

2:31 pm-9:23 am

1 stop18h 52m

Rapid City

Wed 5/20

5:20 am-9:55 am

1 stop4h 35m

$588

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sun 5/10

5:26 pm-9:55 pm

1 stop4h 29m

Rapid City

Thu 5/21

11:20 am-9:50 am

1 stop22h 30m

$588

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 5/15

5:26 pm-8:28 pm

1 stop27h 02m

Rapid City

Wed 5/20

5:20 am-9:55 am

1 stop4h 35m

$633

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Mon 5/11

5:26 pm-9:23 am

1 stop15h 57m

Rapid City

Thu 5/21

5:00 am-1:25 pm

1 stop8h 25m

$697

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 5/15

5:26 pm-8:28 pm

1 stop27h 02m

Rapid City

Thu 5/21

11:20 am-9:50 am

1 stop22h 30m

$742

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Thu 4/2

1:10 pm-10:25 pm

2 stops9h 15m

Rapid City

Mon 4/6

11:03 am-6:15 pm

2 stops7h 12m

$1,871

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

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.

Reviews of airlines servicing Rapid City

Get insights into the airlines that provide service to Rapid City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Rapid City. Reviews last updated March 20, 2026.
Read through reviews of airlines operating flights from Idaho Falls to Rapid City, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,450 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,450 reviews
United Airlines
7.4
Good
9,450 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Idaho Falls to Rapid City

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Idaho Falls to Rapid City

Discover the top airline that operate flights from Idaho Falls to Rapid City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$298Average$558FlexibilityNo cancel feeOn-time69%

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