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Idaho

$136+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — BOI
apr. 10 — apr. 171
fr. 4/10
fr. 4/17
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 mars 11, 2026.

This United Airlines deal was found by Cheapflights users on 3/8. 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.
lø. 4/257:00 am
RAP
-
IDA
1 stop6h 24m
United Airlines
ma. 4/272:30 pm
IDA
-
RAP
1 stop6h 14m
United Airlines
Deal found 3/8$269
This Delta deal was found by Cheapflights users on 3/7. 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.
lø. 4/259:25 am
FSD
-
BOI
1 stop6h 01m
Delta
lø. 5/23:23 pm
BOI
-
FSD
1 stop6h 39m
Delta
Deal found 3/7$271
This American Airlines deal was found by Cheapflights users on 3/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fr. 3/276:48 am
FSD
-
SUN
1 stop7h 06m
American Airlines
ti. 3/311:27 pm
SUN
-
FSD
1 stop8h 28m
American Airlines
Deal found 3/9$275
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lø. 5/26:00 am
FSD
-
BOI
1 stop4h 54m
United Airlines
lø. 5/98:28 am
BOI
-
FSD
2 stops10h 52m
United Airlines
Deal found 3/9$276
This Delta deal was found by Cheapflights users on 3/8. 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.
ti. 4/78:00 am
FSD
-
GEG
1 stop7h 10m
Delta
ti. 4/142:10 pm
GEG
-
FSD
1 stop6h 52m
Delta
Deal found 3/8$285
This Delta deal was found by Cheapflights users on 3/7. 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.
lø. 4/259:25 am
FSD
-
BOI
1 stop6h 01m
Delta
fr. 5/13:23 pm
BOI
-
FSD
1 stop6h 39m
Delta
Deal found 3/7$285
This American Airlines deal was found by Cheapflights users on 3/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fr. 9/251:42 pm
FSD
-
JAC
1 stop5h 39m
American Airlines
on. 9/303:32 pm
JAC
-
FSD
1 stop7h 19m
American Airlines
Deal found 3/9$289
This Delta deal was found by Cheapflights users on 3/6. 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.
fr. 4/106:00 am
RAP
-
BOI
1 stop8h 05m
Delta
ti. 4/143:23 pm
BOI
-
RAP
1 stop6h 57m
Delta
Deal found 3/6$289
This Delta deal was found by Cheapflights users on 3/9. 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.
ti. 4/74:01 pm
RAP
-
GEG
1 stop6h 28m
Delta
fr. 4/176:00 am
GEG
-
RAP
1 stop8h 15m
Delta
Deal found 3/9$289
This Delta deal was found by Cheapflights users on 3/9. 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.
ti. 4/76:00 am
RAP
-
GEG
1 stop8h 10m
Delta
ti. 4/141:07 pm
GEG
-
RAP
2 stops8h 13m
Delta
Deal found 3/9$294
This Delta deal was found by Cheapflights users on 3/7. 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.
ti. 8/255:25 am
FSD
-
GEG
1 stop7h 59m
Delta
lø. 8/296:05 am
GEG
-
FSD
1 stop7h 23m
Delta
Deal found 3/7$299
This United Airlines deal was found by Cheapflights users on 3/8. 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.
fr. 4/179:05 am
FSD
-
BOI
2 stops11h 48m
United Airlines
fr. 4/245:00 am
BOI
-
FSD
1 stop4h 29m
United Airlines
Deal found 3/8$304

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 mars 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(United Airlines)

One-way from

$136
(Delta)

Popular in

November

Cheapest in

June

Average price

$420
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 ($129 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 mars 11, 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

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

lø. 5/2

9:25 am-2:26 pm

1 stop6h 01m

Boise Air Term. Gowen Fld

lø. 5/9

2:12 pm-11:11 pm

1 stop7h 59m

$271

Sioux FallsJackson

FSD - JAC

FSDJAC

Sioux Falls Joe Foss Field

on. 4/1

9:05 am-1:21 pm

1 stop5h 16m

Jackson Hole

to. 4/30

2:30 pm-8:20 pm

1 stop4h 50m

$289

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

fr. 4/10

6:00 am-2:05 pm

1 stop8h 05m

Boise Air Term. Gowen Fld

ti. 4/14

3:23 pm-10:20 pm

1 stop6h 57m

$289

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

fr. 5/22

5:00 am-9:45 am

1 stop4h 45m

Boise Air Term. Gowen Fld

on. 5/27

5:46 pm-10:25 pm

1 stop4h 39m

$289

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

lø. 5/23

5:00 am-9:45 am

1 stop4h 45m

Boise Air Term. Gowen Fld

on. 5/27

5:46 pm-10:25 pm

1 stop4h 39m

$289

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

fr. 4/17

8:30 am-12:40 pm

1 stop5h 10m

Spokane

ti. 4/21

4:01 pm-10:28 pm

1 stop5h 27m

$289

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

ti. 8/25

5:15 am-10:35 am

2 stops7h 20m

Spokane

lø. 8/29

6:05 am-3:28 pm

1 stop7h 23m

$304

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

ti. 3/24

4:01 pm-9:29 pm

1 stop6h 28m

Spokane

lø. 3/28

2:15 pm-10:25 pm

1 stop7h 10m

$329

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

ti. 4/14

5:27 am-9:53 am

1 stop4h 26m

Idaho Falls Fanning Field

lø. 4/18

2:30 pm-9:04 pm

1 stop6h 34m

$329

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

ti. 4/14

6:10 am-11:49 am

1 stop6h 39m

Boise Air Term. Gowen Fld

lø. 4/18

2:37 pm-8:30 pm

1 stop4h 53m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 55 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, 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 mars 11, 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
8,278 reviews

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

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
8,278 reviews
Delta
7.9
Good
8,278 reviews

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

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
9,414 reviews
Delta
7.9
Good
8,278 reviews

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

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
11,419 reviews
Delta
7.9
Good
8,278 reviews

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

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?

    Delta and United Airlines can get you from South Dakota to Idaho in just under 5h 16m. Your travel time can differ by up to 45m. South Dakota and Idaho are separated by a distance of 699 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

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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 mars 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$248Average$414FlexibilityNo cancel feeOn-time69%
DeltaCheapest$248Average$301FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$334Average$394FlexibilityNo cancel feeOn-time71%

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