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Idaho Falls

$309+ Cheap flights from South Dakota to Idaho Falls (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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — IDA
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
1 adult, Economy
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Cheap flight deals from South Dakota to Idaho Falls

Cheapest flights from South Dakota to Idaho Falls
Explore the most affordable flight options available from South Dakota to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 6, 2026.

This United Airlines deal was found by Cheapflights users on 2/3. 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.
Sat 3/212:45 pm
RAP
-
IDA
1 stop6h 21m
United Airlines
Sat 3/282:35 pm
IDA
-
RAP
1 stop5h 59m
United Airlines
Deal found 2/3$309
This United Airlines deal was found by Cheapflights users on 2/5. 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 10/317:05 am
RAP
-
IDA
1 stop6h 30m
United Airlines
Wed 11/42:35 pm
IDA
-
RAP
1 stop5h 58m
United Airlines
Deal found 2/5$329
This United Airlines deal was found by Cheapflights users on 2/5. 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 2/245:20 am
RAP
-
IDA
1 stop4h 28m
United Airlines
Mon 3/25:33 pm
IDA
-
RAP
1 stop4h 43m
United Airlines
Deal found 2/5$379
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Tue 3/35:20 am
RAP
-
IDA
1 stop4h 28m
United Airlines
Tue 3/105:30 pm
IDA
-
RAP
1 stop19h 43m
United Airlines
Deal found 2/3$398
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Tue 9/295:30 am
RAP
-
IDA
1 stop3h 58m
United Airlines
Thu 10/12:35 pm
IDA
-
RAP
1 stop5h 58m
United Airlines
Deal found 2/3$483
This United Airlines deal was found by Cheapflights users on 2/3. 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 2/165:20 am
RAP
-
IDA
1 stop4h 28m
United Airlines
Tue 2/175:33 pm
IDA
-
RAP
1 stop4h 43m
United Airlines
Deal found 2/3$626
This United Airlines deal was found by Cheapflights users on 2/4. 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 3/218:30 am
RAP
-
IDA
1 stop7h 10m
United Airlines
Sun 3/2910:40 am
IDA
-
RAP
2 stops10h 56m
United Airlines
Deal found 2/4$1,020
This Delta deal was found by Cheapflights users on 2/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2111:03 am
RAP
-
IDA
2 stops7h 12m
Delta
Sat 3/285:45 am
IDA
-
RAP
2 stops9h 33m
Delta
Deal found 2/3$1,604
This Delta deal was found by Cheapflights users on 2/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/166:00 am
RAP
-
IDA
2 stops11h 49m
Delta
Tue 2/175:25 am
IDA
-
RAP
2 stops10h 19m
Delta
Deal found 2/3$1,611
This Delta deal was found by Cheapflights users on 2/4. 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.
Sat 3/2111:03 am
RAP
-
IDA
2 stops7h 12m
Delta
Sun 3/295:45 am
IDA
-
RAP
2 stops9h 33m
Delta
Deal found 2/4$1,672

Find flight deals from South Dakota to Idaho Falls

Keep the following information in mind while searching for South Dakota to Idaho Falls flight deals. Data was last updated February 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(United Airlines)
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Idaho Falls Fanning Field flights.
Search Deals
From South Dakota to Idaho Falls Fanning Field
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Dakota 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 2,558,603 searches. Data last updated February 6, 2026.
Use the filters below to find and compare flights from South Dakota to Idaho Falls that are best for you.

Fly from

South Dakota

Fly to

Idaho Falls

Route

Depart

Return

Price

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Sat 3/21

2:45 pm-9:06 pm

1 stop6h 21m

Idaho Falls Fanning Field

Sat 3/28

2:35 pm-8:34 pm

1 stop5h 59m

$309

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Sat 3/21

8:30 am-3:40 pm

1 stop7h 10m

Idaho Falls Fanning Field

Sun 3/29

2:30 pm-7:02 pm

1 stop4h 32m

$309

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Tue 2/24

5:20 am-9:48 am

1 stop4h 28m

Idaho Falls Fanning Field

Mon 3/2

5:33 pm-10:16 pm

1 stop4h 43m

$379

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Tue 3/3

5:20 am-9:48 am

1 stop4h 28m

Idaho Falls Fanning Field

Tue 3/10

5:30 pm-1:13 pm

1 stop19h 43m

$398

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Mon 2/16

5:20 am-9:48 am

1 stop4h 28m

Idaho Falls Fanning Field

Tue 2/17

5:33 pm-10:16 pm

1 stop4h 43m

$626

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Sat 3/21

11:03 am-6:15 pm

2 stops7h 12m

Idaho Falls Fanning Field

Sat 3/28

5:45 am-3:18 pm

2 stops9h 33m

$1,604

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Mon 2/16

6:00 am-5:49 pm

2 stops11h 49m

Idaho Falls Fanning Field

Tue 2/17

5:25 am-3:44 pm

2 stops10h 19m

$1,611

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Tue 3/3

6:00 am-5:49 pm

2 stops11h 49m

Idaho Falls Fanning Field

Tue 3/10

1:10 pm-10:25 pm

2 stops9h 15m

$1,611

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Tue 2/24

6:00 am-5:49 pm

2 stops11h 49m

Idaho Falls Fanning Field

Mon 3/2

5:25 am-3:44 pm

2 stops10h 19m

$1,611

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Sat 3/21

11:03 am-6:15 pm

2 stops7h 12m

Idaho Falls Fanning Field

Sun 3/29

5:45 am-3:18 pm

2 stops9h 33m

$1,672

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

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

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from South Dakota 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 South Dakota to Idaho Falls
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 South Dakota to Idaho Falls. 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 into for flights to Idaho Falls from South Dakota?

    Idaho Falls Fanning Field (IDA), located 3.8 mi from the city center, is the airport you fly into when you book flights from South Dakota to Idaho Falls.

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

    A quick flight from South Dakota to Idaho Falls can take about 6h 21m. United Airlines provides one of the quickest options available for as low as $309. The distance between South Dakota and Idaho Falls is about 450 mi.

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

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

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

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

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

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

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

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Alternative routes for South Dakota to Idaho Falls

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Top airline flying from South Dakota to Idaho Falls

Discover the top airline that operate flights from South Dakota to Idaho Falls. 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 February 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$404FlexibilityNo cancel feeOn-time69%

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