$389+ 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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — RAP
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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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
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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
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Cheapest flights from Idaho Falls to Rapid CityExplore 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 September 17, 2026.
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 September 17, 2026.
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/14:05 pm -
1 stop4h 47m
Mon 10/55:00 am -
1 stop4h 53m
Deal found 9/16![United Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 9/245:51 pm -
1 stop4h 39m
Sun 9/278:57 am -
1 stop4h 27m
Deal found 9/15![United Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/255:40 pm -
1 stop4h 50m
Sun 11/15:00 am -
1 stop4h 53m
Deal found 9/16![United Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/302:28 pm -
1 stop6h 24m
Sun 10/45:00 am -
1 stop4h 53m
Deal found 9/14![United Airlines logo]()
$586
This United Airlines deal was found by Cheapflights users on 9/16. 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 9/244:05 pm -
1 stop4h 47m
Sat 9/265:00 am -
1 stop4h 53m
Deal found 9/16![United Airlines logo]()
$645
Best flights from Idaho Falls to Rapid CityDiscover carefully curated flight deals from Idaho Falls to Rapid City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from Idaho Falls to Rapid City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This United Airlines deal was found by Cheapflights users on 9/16. 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 2/64:17 pm -
1 stop4h 16m
Tue 2/97:05 am -
1 stop6h 30m
Deal found 9/16![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/302:28 pm -
1 stop6h 24m
Sun 10/45:00 am -
1 stop4h 53m
Deal found 9/14![United Airlines logo]()
$586
This United Airlines deal was found by Cheapflights users on 9/12. 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 9/12![United Airlines logo]()
$593
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/15:51 pm -
2 stops16h 24m
Mon 10/511:17 am -
1 stop5h 59m
Deal found 9/16![United Airlines logo]()
$1,253
Last-minute flights from Idaho Falls to Rapid CityDiscover last-minute flight deals from Idaho Falls to Rapid City. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Rapid City. Data last updated September 17, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 9/245:51 pm -
1 stop4h 39m
Sun 9/278:57 am -
1 stop4h 27m
Deal found 9/15![United Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 9/16. 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 9/244:05 pm -
1 stop4h 47m
Sat 9/265:00 am -
1 stop4h 53m
Deal found 9/16![United Airlines logo]()
$645
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/302:28 pm -
1 stop6h 24m
Sun 10/45:00 am -
1 stop4h 53m
Deal found 9/14![United Airlines logo]()
$586
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/14:05 pm -
1 stop4h 47m
Mon 10/55:00 am -
1 stop4h 53m
Deal found 9/16![United Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/255:40 pm -
1 stop4h 50m
Sun 11/15:00 am -
1 stop4h 53m
Deal found 9/16![United Airlines logo]()
$454
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 September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $389 (United Airlines) |
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 7,457,451 searches. Data last updated September 17, 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
Cheapest round-trip
Quickest round-trip
Idaho FallsRapid City
IDA Idaho Falls Fanning Field - RAP Rapid City
IDARAP
Idaho Falls Fanning Field
Sat 2/6
4:17 pm-8:33 pm
1 stop4h 16m
Rapid City
Tue 2/9
7:05 am-1:35 pm
1 stop6h 30m
$389
Idaho FallsRapid City
IDA Idaho Falls Fanning Field - RAP Rapid City
IDARAP
Idaho Falls Fanning Field
Wed 9/30
2:28 pm-8:52 pm
1 stop6h 24m
Rapid City
Sun 10/4
5:00 am-9:53 am
1 stop4h 53m
$586
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
$593
Idaho FallsRapid City
IDA Idaho Falls Fanning Field - RAP Rapid City
IDARAP
Idaho Falls Fanning Field
Thu 10/1
5:51 pm-10:15 am
2 stops16h 24m
Rapid City
Mon 10/5
11:17 am-5:16 pm
1 stop5h 59m
$1,253
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.
IDA-RAP
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.
Traveling to a place near Rapid City?
Book flights to Rapid City if you plan to visit one of these locationsDeadwood
Keystone
Spearfish
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