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Idaho

$151+ 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 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — BOI
feb. 26 — mar. 51
jue. 2/26
jue. 3/5
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 enero 27, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
jue. 2/262:16 pm
FSD
-
BOI
1 stop21h 55m
Frontier
dom. 3/111:56 am
BOI
-
FSD
1 stop25h 01m
Frontier
Deal found 1/25$209
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
jue. 2/262:16 pm
FSD
-
BOI
1 stop21h 55m
Multiple Airlines
jue. 3/512:38 pm
BOI
-
FSD
2 stops28h 09m
Multiple Airlines
Deal found 1/25$216
This Delta deal was found by Cheapflights users on 1/25. 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.
mar. 2/248:05 am
FSD
-
BOI
1 stop6h 53m
Delta
mié. 3/45:20 am
BOI
-
FSD
1 stop5h 55m
Delta
Deal found 1/25$251
This Delta deal was found by Cheapflights users on 1/25. 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.
mar. 2/248:05 am
FSD
-
BOI
1 stop6h 53m
Delta
vie. 3/62:54 pm
BOI
-
FSD
1 stop7h 01m
Delta
Deal found 1/25$265
This United Airlines deal was found by Cheapflights users on 1/25. 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.
mié. 2/255:50 am
FSD
-
BOI
1 stop5h 22m
United Airlines
mié. 3/42:40 pm
BOI
-
FSD
1 stop4h 59m
United Airlines
Deal found 1/25$266
This United Airlines deal was found by Cheapflights users on 1/27. 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.
jue. 2/267:00 am
RAP
-
GEG
1 stop6h 42m
United Airlines
jue. 3/55:00 am
GEG
-
RAP
1 stop7h 13m
United Airlines
Deal found 1/27$269
This Delta deal was found by Cheapflights users on 1/24. 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.
jue. 2/126:00 am
RAP
-
GEG
1 stop8h 08m
Delta
sáb. 2/142:05 pm
GEG
-
RAP
1 stop7h 22m
Delta
Deal found 1/24$274
This Delta deal was found by Cheapflights users on 1/27. 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.
vie. 3/138:00 am
FSD
-
GEG
1 stop7h 10m
Delta
mar. 3/172:15 pm
GEG
-
FSD
1 stop6h 49m
Delta
Deal found 1/27$279
This United Airlines deal was found by Cheapflights users on 1/27. 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.
mar. 3/245:45 am
FSD
-
BOI
1 stop5h 21m
United Airlines
sáb. 3/285:31 pm
BOI
-
FSD
1 stop5h 13m
United Airlines
Deal found 1/27$279
This Delta deal was found by Cheapflights users on 1/25. 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.
mar. 2/106:00 am
RAP
-
BOI
1 stop7h 34m
Delta
sáb. 2/143:01 pm
BOI
-
RAP
1 stop7h 26m
Delta
Deal found 1/25$279
This Delta deal was found by Cheapflights users on 1/27. 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.
mié. 2/116:00 am
RAP
-
GEG
1 stop8h 03m
Delta
dom. 2/156:45 am
GEG
-
RAP
1 stop7h 59m
Delta
Deal found 1/27$279
This Delta deal was found by Cheapflights users on 1/25. 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.
lun. 2/234:19 pm
FSD
-
BOI
1 stop5h 36m
Delta
mié. 3/45:20 am
BOI
-
FSD
1 stop5h 55m
Delta
Deal found 1/25$280

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 enero 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$209
(Kiwi.com)

One-way from

$151
(United Airlines)

Popular in

November

Cheapest in

April

Average price

$458
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. 22% potential increase in price ($127 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 enero 27, 2026.
Use the filters below to find and compare flights from South Dakota to Idaho that are best for you.

Fly from

South Dakota

Fly to

Idaho

Route

Depart

Return

Price

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

jue. 2/26

7:00 am-12:42 pm

1 stop6h 42m

Spokane

jue. 3/5

5:00 am-1:13 pm

1 stop7h 13m

$269

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

jue. 5/28

11:15 am-3:05 pm

1 stop4h 50m

Spokane

jue. 6/4

4:03 pm-10:24 pm

1 stop5h 21m

$269

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

jue. 2/12

6:00 am-1:08 pm

1 stop8h 08m

Spokane

sáb. 2/14

2:05 pm-10:27 pm

1 stop7h 22m

$274

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

jue. 2/26

6:00 am-1:08 pm

1 stop8h 08m

Spokane

jue. 3/5

11:22 am-10:27 pm

2 stops10h 05m

$274

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

vie. 3/13

8:00 am-1:10 pm

1 stop7h 10m

Spokane

mar. 3/17

2:15 pm-11:04 pm

1 stop6h 49m

$279

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

mar. 3/24

5:45 am-10:06 am

1 stop5h 21m

Boise Air Term. Gowen Fld

sáb. 3/28

5:31 pm-11:44 pm

1 stop5h 13m

$279

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

mar. 2/10

6:00 am-1:34 pm

1 stop7h 34m

Boise Air Term. Gowen Fld

sáb. 2/14

3:01 pm-10:27 pm

1 stop7h 26m

$279

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

mié. 2/11

6:00 am-1:03 pm

1 stop8h 03m

Spokane

dom. 2/15

6:45 am-3:44 pm

1 stop7h 59m

$279

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

mié. 4/22

6:00 am-9:54 am

1 stop4h 54m

Boise Air Term. Gowen Fld

mié. 4/29

7:11 am-8:30 pm

2 stops12h 19m

$284

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

lun. 4/20

4:57 pm-9:22 pm

1 stop5h 25m

Boise Air Term. Gowen Fld

mar. 4/28

5:00 am-10:29 am

1 stop4h 29m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 49 results
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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, May is the cheapest month in which you can book a flight from South Dakota to Idaho (average of $226). Flying from South Dakota to Idaho in December is currently the most expensive (average of $508). 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 enero 27, 2026.
See what other customers who have flown with Delta, United Airlines, and American 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
8,119 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

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
8,119 reviews
Delta
7.9
Good
8,119 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

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
9,205 reviews
Delta
7.9
Good
8,119 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

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
7.2
Good
11,197 reviews
Delta
7.9
Good
8,119 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

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 and Delta can get you from South Dakota to Idaho in just under 6h 42m. Your travel time can differ by up to 1h 26m. South Dakota and Idaho are separated by a distance of 738 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, May is the cheapest month in which you can book a flight from South Dakota to Idaho (average of $226). Flying from South Dakota to Idaho in December is currently the most expensive (average of $508). 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

Browse thousands of different options on Cheapflights for your next trip

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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 enero 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$243Average$328FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$404FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$334Average$394FlexibilityNo cancel feeOn-time71%

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