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Idaho

$182+ Cheap flights from South Dakota to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — BOI
May 25 — Jun 11
Mon 5/25
Mon 6/1
1 adult, Economy
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Cheap flight deals from South Dakota to Idaho

Cheapest flights from South Dakota to Idaho
Explore the most affordable flight options available from South Dakota to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2026.

This United Airlines deal was found by Cheapflights users on 4/20. 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 5/55:20 am
RAP
-
IDA
1 stop4h 35m
United Airlines
Sat 5/95:26 pm
IDA
-
RAP
1 stop4h 29m
United Airlines
Deal found 4/20$319
This Delta deal was found by Cheapflights users on 4/23. 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 5/84:16 pm
FSD
-
JAC
1 stop4h 59m
Delta
Tue 5/127:00 am
JAC
-
FSD
1 stop4h 49m
Delta
Deal found 4/23$329
This United Airlines deal was found by Cheapflights users on 4/23. 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 8/227:00 am
RAP
-
BOI
1 stop6h 35m
United Airlines
Sun 8/305:00 am
BOI
-
RAP
1 stop4h 17m
United Airlines
Deal found 4/23$329
This Delta deal was found by Cheapflights users on 4/23. 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 5/116:50 am
RAP
-
GEG
1 stop7h 21m
Delta
Mon 5/182:16 pm
GEG
-
RAP
1 stop7h 07m
Delta
Deal found 4/23$334
This Delta deal was found by Cheapflights users on 4/20. 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.
Thu 9/171:20 pm
FSD
-
GEG
1 stop8h 00m
Delta
Tue 9/222:05 pm
GEG
-
FSD
1 stop6h 41m
Delta
Deal found 4/20$339
This Delta deal was found by Cheapflights users on 4/20. 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.
Tue 5/56:00 am
RAP
-
BOI
1 stop8h 26m
Delta
Sat 5/92:23 pm
BOI
-
RAP
1 stop8h 00m
Delta
Deal found 4/20$339
This Delta deal was found by Cheapflights users on 4/20. 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.
Tue 5/56:00 am
RAP
-
GEG
1 stop8h 04m
Delta
Sat 5/92:16 pm
GEG
-
RAP
1 stop7h 07m
Delta
Deal found 4/20$339
This United Airlines deal was found by Cheapflights users on 4/21. 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 6/25:00 am
RAP
-
BOI
1 stop4h 45m
United Airlines
Tue 6/95:00 am
BOI
-
RAP
1 stop4h 20m
United Airlines
Deal found 4/21$348
This United Airlines deal was found by Cheapflights users on 4/23. 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 7/1710:21 am
RAP
-
BOI
1 stop7h 35m
United Airlines
Mon 7/205:46 pm
BOI
-
RAP
1 stop4h 39m
United Airlines
Deal found 4/23$350
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:00 am
FSD
-
BOI
1 stop6h 21m
American Airlines
Wed 7/223:06 pm
BOI
-
FSD
1 stop8h 04m
American Airlines
Deal found 4/21$352
This Delta deal was found by Cheapflights users on 4/21. 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 10/234:09 pm
FSD
-
GEG
1 stop5h 18m
Delta
Mon 10/262:05 pm
GEG
-
FSD
1 stop6h 46m
Delta
Deal found 4/21$354
This United Airlines deal was found by Cheapflights users on 4/23. 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 8/2710:13 am
RAP
-
GEG
1 stop5h 45m
United Airlines
Mon 8/315:00 am
GEG
-
RAP
1 stop6h 24m
United Airlines
Deal found 4/23$355

Find flight deals from South Dakota to Idaho

Keep the following information in mind while searching for South Dakota to Idaho flight deals. Data was last updated April 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(United Airlines)

One-way from

$182
(Kiwi.com)

Popular in

May

Cheapest in

June

Average price

$524
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Boise Air Term. Gowen Fld flights.
Search Deals
From South Dakota to Idaho
Search Deals
One-way flight from South Dakota to Idaho
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Dakota to Idaho 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 April 25, 2026.
Use the filters below to find and compare flights from South Dakota to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Tue 5/5

5:20 am-9:55 am

1 stop4h 35m

Idaho Falls Fanning Field

Sat 5/9

5:26 pm-9:55 pm

1 stop4h 29m

$319

Sioux FallsJackson

FSD - JAC

FSDJAC

Sioux Falls Joe Foss Field

Fri 5/8

4:16 pm-8:15 pm

1 stop4h 59m

Jackson Hole

Tue 5/12

7:00 am-12:49 pm

1 stop4h 49m

$329

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Thu 9/17

1:20 pm-7:20 pm

1 stop8h 00m

Spokane

Tue 9/22

2:05 pm-10:46 pm

1 stop6h 41m

$339

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Sat 6/6

5:05 pm-8:30 pm

1 stop5h 25m

Spokane

Sat 6/13

4:08 pm-11:53 pm

1 stop5h 45m

$339

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Thu 9/17

1:20 pm-7:20 pm

1 stop8h 00m

Spokane

Mon 9/21

7:21 pm-10:00 am

2 stops12h 39m

$344

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Wed 10/14

9:43 am-12:35 pm

1 stop4h 52m

Spokane

Tue 10/20

12:50 pm-11:44 pm

2 stops8h 54m

$344

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Thu 8/20

7:00 am-12:35 pm

1 stop6h 35m

Spokane

Tue 8/25

1:38 pm-8:32 pm

1 stop5h 54m

$363

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Thu 5/21

6:50 am-1:11 pm

1 stop7h 21m

Spokane

Sun 5/24

2:16 pm-10:24 pm

1 stop7h 08m

$364

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Sat 5/23

7:05 am-1:25 pm

1 stop6h 20m

Idaho Falls Fanning Field

Mon 5/25

5:54 pm-10:25 pm

1 stop4h 31m

$367

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Sat 5/23

5:00 am-9:50 am

1 stop4h 50m

Idaho Falls Fanning Field

Sun 5/24

7:00 am-12:29 pm

1 stop5h 29m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 41 resultsSorted by cheapest first
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Best time to book a flight from South Dakota to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho 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

What is the cheapest month to book a flight from South Dakota to Idaho?

Currently, February is the cheapest month in which you can book a flight from South Dakota to Idaho (average of $248). Flying from South Dakota to Idaho in December is currently the most expensive (average of $489). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from South Dakota to Idaho?

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated April 25, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from South Dakota to Idaho have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,458 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,458 reviews
Delta
7.9
Good
8,458 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,650 reviews
Delta
7.9
Good
8,458 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,672 reviews
Delta
7.9
Good
8,458 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from South Dakota to Idaho. 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 South Dakota to Idaho?

    United Airlines, Delta, and American Airlines can get you from South Dakota to Idaho in just under 4h 35m. Your travel time can differ by up to 17h 44m. South Dakota and Idaho are separated by 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 South Dakota to Idaho that include hotel bookings?

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

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

    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.

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

    Yes. Cheapflights offers flight deals from South Dakota to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from South Dakota to Idaho?

    Currently, February is the cheapest month in which you can book a flight from South Dakota to Idaho (average of $248). Flying from South Dakota to Idaho in December is currently the most expensive (average of $489). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for South Dakota to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from South Dakota to Idaho

Discover the top 3 airlines that operate flights from South Dakota to Idaho. 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 April 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$152Average$392FlexibilityNo cancel feeOn-time69%
DeltaCheapest$248Average$366FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$334Average$413FlexibilityNo cancel feeOn-time71%

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