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South Dakota

$178+ Cheap flights from Idaho to South Dakota

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FSD
Jul 11 — Jul 181
Sat 7/11
Sat 7/18
1 adult, Economy
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Cheap flight deals from Idaho to South Dakota

Cheapest flights from Idaho to South Dakota
Explore the most affordable flight options available from Idaho to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.

This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:30 am
BOI
-
RAP
1 stop8h 18m
Delta
Sun 8/164:30 pm
RAP
-
BOI
1 stop7h 29m
Delta
Deal found 6/9$309
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/31:57 pm
BOI
-
FSD
1 stop9h 00m
American Airlines
Fri 7/105:34 pm
FSD
-
BOI
1 stop6h 47m
American Airlines
Deal found 6/10$319
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/141:55 pm
BOI
-
FSD
1 stop8h 53m
American Airlines
Wed 8/198:30 am
FSD
-
BOI
1 stop5h 54m
American Airlines
Deal found 6/10$329
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/182:50 pm
BOI
-
FSD
1 stop7h 01m
Delta
Sat 9/1910:50 am
FSD
-
BOI
2 stops8h 53m
Delta
Deal found 6/7$334
This Delta deal was found by Cheapflights users on 6/8. 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.
Fri 7/315:30 am
BOI
-
FSD
1 stop6h 19m
Delta
Sat 8/84:28 pm
FSD
-
BOI
1 stop5h 24m
Delta
Deal found 6/8$354
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Sat 6/275:46 pm
BOI
-
FSD
1 stop5h 07m
United Airlines
Sat 7/49:30 am
FSD
-
BOI
2 stops11h 35m
United Airlines
Deal found 6/8$359
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:20 am
GEG
-
FSD
1 stop6h 20m
American Airlines
Mon 8/2412:57 pm
FSD
-
GEG
1 stop9h 45m
American Airlines
Deal found 6/7$366
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:30 am
BOI
-
FSD
1 stop6h 08m
Delta
Sat 8/2910:54 am
FSD
-
BOI
2 stops9h 06m
Delta
Deal found 6/7$370
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:20 pm
GEG
-
FSD
2 stops12h 45m
Delta
Tue 11/104:09 pm
FSD
-
GEG
1 stop5h 18m
Delta
Deal found 6/9$371
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:15 pm
BOI
-
FSD
2 stops8h 31m
Delta
Thu 9/178:23 am
FSD
-
BOI
1 stop6h 15m
Delta
Deal found 6/10$384
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Tue 10/272:43 pm
BOI
-
RAP
1 stop5h 50m
United Airlines
Sat 10/318:35 am
RAP
-
BOI
1 stop4h 55m
United Airlines
Deal found 6/7$389
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:15 pm
BOI
-
FSD
2 stops8h 31m
Delta
Sat 9/121:20 pm
FSD
-
BOI
2 stops10h 36m
Delta
Deal found 6/7$394

Find flight deals from Idaho to South Dakota

Keep the following information in mind while searching for Idaho to South Dakota flight deals. Data was last updated June 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(Delta)

One-way from

$178
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$668
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Sioux Falls Joe Foss Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Sioux Falls Joe Foss Field flights.
Search Deals
From Idaho to South Dakota
Search Deals
One-way flight from Idaho to South Dakota
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho 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 11, 2026.
Use the filters below to find and compare flights from Idaho to South Dakota that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Fri 8/14

5:30 am-1:48 pm

1 stop8h 18m

Rapid City

Sun 8/16

4:30 pm-11:59 pm

1 stop7h 29m

$309
Quickest round-trip

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Sat 8/15

5:44 pm-10:28 pm

1 stop4h 44m

Rapid City

Wed 8/19

5:00 am-9:35 am

1 stop4h 35m

$309

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Wed 9/9

5:40 pm-11:44 pm

1 stop5h 04m

Sioux Falls Joe Foss Field

Thu 9/17

6:00 am-9:35 am

1 stop4h 35m

$319

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Fri 9/18

5:40 pm-11:44 pm

1 stop5h 04m

Sioux Falls Joe Foss Field

Sat 9/19

9:35 am-1:35 pm

1 stop5h 00m

$329

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Tue 8/4

5:46 pm-11:53 pm

1 stop5h 07m

Sioux Falls Joe Foss Field

Fri 8/14

5:05 pm-9:37 pm

1 stop5h 32m

$329

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Fri 7/31

5:30 am-12:49 pm

1 stop6h 19m

Sioux Falls Joe Foss Field

Sat 8/8

4:28 pm-8:52 pm

1 stop5h 24m

$354

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Fri 7/3

12:15 pm-9:58 pm

1 stop8h 43m

Sioux Falls Joe Foss Field

Fri 7/10

5:34 pm-11:21 pm

1 stop6h 47m

$389

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Tue 10/27

2:43 pm-8:33 pm

1 stop5h 50m

Rapid City

Sat 10/31

8:35 am-1:30 pm

1 stop4h 55m

$389

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Wed 10/28

5:22 pm-10:56 pm

1 stop4h 34m

Sioux Falls Joe Foss Field

Sat 10/31

5:00 pm-9:16 pm

1 stop5h 16m

$399

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Fri 7/3

4:18 pm-10:25 pm

1 stop5h 07m

Rapid City

Tue 7/7

7:00 am-12:37 pm

1 stop6h 37m

$408

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Idaho to South Dakota

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

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

Currently, March is the cheapest month in which you can book a flight from Idaho to South Dakota (average of $224). Flying from Idaho to South Dakota in June is currently the most expensive (average of $448). 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 Idaho to South Dakota?

Reviews of airlines servicing South Dakota

Get insights into the airlines that provide service to South Dakota. 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 South Dakota. Reviews last updated June 11, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Idaho to South Dakota have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,399 reviews

Crew

8.5

Overall

7.9

Comfort

7.8

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,399 reviews
Delta
7.9
Good
8,399 reviews

Crew

8.5

Overall

7.9

Comfort

7.8

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,805 reviews
Delta
7.9
Good
8,399 reviews

Crew

8.5

Overall

7.9

Comfort

7.8

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,640 reviews
Delta
7.9
Good
8,399 reviews

Crew

8.5

Overall

7.9

Comfort

7.8

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

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

    For as low as $309, Delta can have you in South Dakota from Idaho in 4h 44m. The distance from Idaho to South Dakota is about 656 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho 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.

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

    Currently, March is the cheapest month in which you can book a flight from Idaho to South Dakota (average of $224). Flying from Idaho to South Dakota in June is currently the most expensive (average of $448). 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 Idaho to South Dakota

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

Discover the top 3 airlines that operate flights from Idaho to South Dakota. 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 June 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$250Average$368FlexibilityNo cancel feeOn-time71%
DeltaCheapest$250Average$398FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$284Average$452FlexibilityNo cancel feeOn-time69%

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