$400+ Cheap flights from Rapid City to Idaho Falls (RAP - IDA)
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 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — IDA
Dec 11 — Dec 181
Round-trip
1 adult, Economy
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Find cheap flights from Rapid City to Idaho Falls 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 Rapid City to Idaho Falls
Cheapest
Best
Last-minute
Cheapest flights from Rapid City to Idaho FallsExplore the most affordable flight options available from Rapid City to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 11, 2026.
Explore the most affordable flight options available from Rapid City to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Sun 11/2210:08 pm -
1 stop17h 26m
Thu 11/265:09 pm -
1 stop25h 48m
Deal found 11/6![Allegiant Air logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Sun 11/2210:08 pm -
2 stops23h 27m
Thu 11/265:09 pm -
1 stop25h 48m
Deal found 11/6![Multiple Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Tue 11/245:00 am -
1 stop4h 53m
Sat 11/289:40 pm -
1 stop3h 44m
Deal found 11/9![United Airlines logo]()
$633
This United Airlines deal was found by Cheapflights users on 11/8. 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 11/254:00 pm -
1 stop17h 53m
Sun 11/299:40 pm -
1 stop3h 44m
Deal found 11/8![United Airlines logo]()
$733
This Delta deal was found by Cheapflights users on 11/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/222:23 pm -
2 stops7h 36m
Thu 11/266:00 am -
2 stops9h 54m
Deal found 11/6![Delta logo]()
$1,811
This Delta deal was found by Cheapflights users on 11/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:45 am -
2 stops11h 32m
Sun 11/291:11 pm -
2 stops9h 30m
Deal found 11/8![Delta logo]()
$1,971
Best flights from Rapid City to Idaho FallsDiscover carefully curated flight deals from Rapid City to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 11, 2026.
Discover carefully curated flight deals from Rapid City to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 11, 2026.
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/65:00 am -
1 stop4h 51m
Wed 2/102:30 pm -
1 stop6h 00m
Deal found 11/10![United Airlines logo]()
$439
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Sun 11/2210:08 pm -
2 stops23h 27m
Thu 11/265:09 pm -
1 stop25h 48m
Deal found 11/6![Multiple Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 11/7. 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 4/105:30 am -
1 stop3h 58m
Wed 4/145:57 pm -
1 stop4h 11m
Deal found 11/7![United Airlines logo]()
$553
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Tue 11/245:00 am -
1 stop4h 53m
Sat 11/289:40 pm -
1 stop3h 44m
Deal found 11/9![United Airlines logo]()
$633
This Delta deal was found by Cheapflights users on 11/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/222:23 pm -
2 stops7h 36m
Thu 11/266:00 am -
2 stops9h 54m
Deal found 11/6![Delta logo]()
$1,811
This Delta deal was found by Cheapflights users on 11/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:45 am -
2 stops11h 32m
Sun 11/291:11 pm -
2 stops9h 30m
Deal found 11/8![Delta logo]()
$1,971
Last-minute flights from Rapid City to Idaho FallsDiscover last-minute flight deals from Rapid City to Idaho Falls. Data last updated November 11, 2026 and is based on user searches.
Discover last-minute flight deals from Rapid City to Idaho Falls. Data last updated November 11, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Sun 11/2210:08 pm -
1 stop17h 26m
Thu 11/265:09 pm -
1 stop25h 48m
Deal found 11/6![Allegiant Air logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Sun 11/2210:08 pm -
2 stops23h 27m
Thu 11/265:09 pm -
1 stop25h 48m
Deal found 11/6![Multiple Airlines logo]()
$506
This Delta deal was found by Cheapflights users on 11/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/222:23 pm -
2 stops7h 36m
Thu 11/266:00 am -
2 stops9h 54m
Deal found 11/6![Delta logo]()
$1,811
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Tue 11/245:00 am -
1 stop4h 53m
Sat 11/289:40 pm -
1 stop3h 44m
Deal found 11/9![United Airlines logo]()
$633
This United Airlines deal was found by Cheapflights users on 11/8. 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 11/254:00 pm -
1 stop17h 53m
Sun 11/299:40 pm -
1 stop3h 44m
Deal found 11/8![United Airlines logo]()
$733
This Delta deal was found by Cheapflights users on 11/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:45 am -
2 stops11h 32m
Sun 11/291:11 pm -
2 stops9h 30m
Deal found 11/8![Delta logo]()
$1,971
Find flight deals from Rapid City to Idaho Falls
Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Idaho Falls (IDA). 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 November 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $400 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Rapid City to Idaho Falls 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 November 11, 2026.
Use the filters below to find and compare flights from Rapid City to Idaho Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Rapid CityIdaho Falls
RAP Rapid City - IDA Idaho Falls Fanning Field
RAPIDA
Rapid City
Sat 2/6
5:00 am-9:51 am
1 stop4h 51m
Idaho Falls Fanning Field
Wed 2/10
2:30 pm-8:30 pm
1 stop6h 00m
$439
Rapid CityIdaho Falls
RAP Rapid City - IDA Idaho Falls Fanning Field
RAPIDA
Rapid City
Sun 11/22
10:08 pm-9:35 pm
2 stops23h 27m
Idaho Falls Fanning Field
Thu 11/26
5:09 pm-6:57 pm
1 stop25h 48m
$506
Quickest round-trip
Rapid CityIdaho Falls
RAP Rapid City - IDA Idaho Falls Fanning Field
RAPIDA
Rapid City
Sat 4/10
5:30 am-9:28 am
1 stop3h 58m
Idaho Falls Fanning Field
Wed 4/14
5:57 pm-10:08 pm
1 stop4h 11m
$553
Rapid CityIdaho Falls
RAP Rapid City - IDA Idaho Falls Fanning Field
RAPIDA
Rapid City
Tue 11/24
5:00 am-9:53 am
1 stop4h 53m
Idaho Falls Fanning Field
Sat 11/28
9:40 pm-1:24 am
1 stop3h 44m
$633
Rapid CityIdaho Falls
RAP Rapid City - IDA Idaho Falls Fanning Field
RAPIDA
Rapid City
Sun 11/22
2:23 pm-9:59 pm
2 stops7h 36m
Idaho Falls Fanning Field
Thu 11/26
6:00 am-3:54 pm
2 stops9h 54m
$1,811
Rapid CityIdaho Falls
RAP Rapid City - IDA Idaho Falls Fanning Field
RAPIDA
Rapid City
Wed 11/25
6:45 am-6:17 pm
2 stops11h 32m
Idaho Falls Fanning Field
Sun 11/29
1:11 pm-10:41 pm
2 stops9h 30m
$1,971
Sorted by cheapest first
Compare providers for flights from Rapid City to Idaho Falls
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Rapid City to Idaho Falls in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Rapid City-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rapid City-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rapid City-Idaho Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Rapid City-Idaho Falls 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 Rapid City-Idaho Falls 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 Rapid City to Idaho Falls
Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Rapid City with our price prediction graph.
RAP-IDA
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 Rapid City to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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