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South Dakota

$359+ Cheap flights from Idaho Falls (IDA) to South Dakota

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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — FSD
Jul 15 — Jul 221
Wed 7/15
Wed 7/22
1 adult, Economy
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Cheap flight deals from Idaho Falls to South Dakota

Cheapest flights from Idaho Falls to South Dakota
Explore the most affordable flight options available from Idaho Falls to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.

This United Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 10/272:35 pm
IDA
-
RAP
1 stop5h 58m
United Airlines
Sat 10/315:30 am
RAP
-
IDA
1 stop3h 58m
United Airlines
Deal found 6/14$359
This United Airlines deal was found by Cheapflights users on 6/11. 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 6/264:14 pm
IDA
-
RAP
1 stop6h 11m
United Airlines
Tue 6/305:00 am
RAP
-
IDA
1 stop4h 50m
United Airlines
Deal found 6/11$426
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:47 am
IDA
-
RAP
1 stop11h 21m
Allegiant Air
Sun 7/199:50 pm
RAP
-
IDA
1 stop18h 10m
Allegiant Air
Deal found 6/14$555
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Sat 6/274:14 pm
IDA
-
RAP
1 stop4h 10m
United Airlines
Wed 7/15:00 am
RAP
-
IDA
1 stop4h 50m
United Airlines
Deal found 6/12$563
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:47 am
IDA
-
RAP
1 stop11h 21m
Multiple Airlines
Sun 7/199:50 pm
RAP
-
IDA
2 stops24h 07m
Multiple Airlines
Deal found 6/14$579
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/133:22 pm
IDA
-
RAP
2 stops7h 04m
Delta
Sun 7/196:48 am
RAP
-
IDA
2 stops11h 30m
Delta
Deal found 6/14$1,813
This Delta deal was found by Cheapflights users on 6/11. 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.
Fri 6/266:00 am
IDA
-
RAP
2 stops9h 48m
Delta
Tue 6/306:48 am
RAP
-
IDA
2 stops11h 29m
Delta
Deal found 6/11$2,809

Find flight deals from Idaho Falls to South Dakota

Keep the following information in mind while searching for Idaho Falls to South Dakota flight deals. Data was last updated June 15, 2026.

Round-trip from

$359
(United Airlines)
From Idaho Falls Fanning Field to South Dakota
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls to South Dakota 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 June 15, 2026.
Use the filters below to find and compare flights from Idaho Falls to South Dakota 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

Tue 10/27

2:35 pm-8:33 pm

1 stop5h 58m

Rapid City

Sat 10/31

5:30 am-9:28 am

1 stop3h 58m

$359

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 6/26

4:14 pm-10:25 pm

1 stop6h 11m

Rapid City

Tue 6/30

5:00 am-9:50 am

1 stop4h 50m

$426
Quickest round-trip

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sat 6/27

4:14 pm-8:24 pm

1 stop4h 10m

Rapid City

Wed 7/1

5:00 am-9:50 am

1 stop4h 50m

$563

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Mon 7/13

3:22 pm-10:26 pm

2 stops7h 04m

Rapid City

Sun 7/19

6:48 am-6:18 pm

2 stops11h 30m

$1,813

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 6/26

6:00 am-3:48 pm

2 stops9h 48m

Rapid City

Tue 6/30

6:48 am-6:17 pm

2 stops11h 29m

$2,809

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Sorted by cheapest first

Best time to book a flight from Idaho Falls to South Dakota

Have a flexible travel schedule? Discover the best time to fly to South Dakota 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.

Cheapflights Insights

Everything you need to know about your flight from Idaho Falls to South Dakota
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to South Dakota. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Idaho Falls to South Dakota?

    Located just 3.8 mi from the city center, Idaho Falls Fanning Field (IDA) is the airport most travelers will use when flying to South Dakota from Idaho Falls.

  • How long is the flight from Idaho Falls to South Dakota?

    United Airlines and Delta can get you from Idaho Falls to South Dakota in just under 5h 58m. Your travel time can differ by up to 1h 06m. Airlines will cover a distance of 450 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Idaho Falls to South Dakota that include hotel bookings?

    Yes. In addition to deals on Idaho Falls to South Dakota flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho Falls to South Dakota?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to South Dakota.

  • Can I find deals for business class flights from Idaho Falls to South Dakota?

    Yes. Cheapflights offers flight deals from Idaho Falls to South Dakota 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

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