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$251+ Cheap flights from Sioux Falls (FSD) to Idaho

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — BOI
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Sioux Falls to Idaho

Keep the following information in mind while searching for Sioux Falls to Idaho flight deals. Data was last updated September 11, 2025.

Round-trip from

$251
(Delta)

Popular in

December

Cheapest in

January

Average price

$389
From Sioux Falls Joe Foss Field to Idaho
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Sioux Falls to Idaho

Cheapest flights from Sioux Falls to Idaho
Explore the most affordable flight options available from Sioux Falls to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/10. 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 11/128:01 amFSD - GEG
1 stop7h 04mDelta
Sat 11/152:09 pmGEG - FSD
1 stop6h 51mDelta
Deal found 9/10$251
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:00 amFSD - BOI
1 stop4h 53mUnited Airlines
Wed 10/155:00 amBOI - FSD
1 stop4h 42mUnited Airlines
Deal found 9/10$251
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/35:14 pmFSD - GEG
1 stop5h 10mUnited Airlines
Mon 10/65:05 amGEG - FSD
1 stop5h 46mUnited Airlines
Deal found 9/10$259
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:00 amFSD - BOI
1 stop4h 42mUnited Airlines
Wed 10/85:00 amBOI - FSD
1 stop4h 42mUnited Airlines
Deal found 9/10$270
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Wed 10/156:00 amFSD - BOI
1 stop4h 53mUnited Airlines
Sat 10/185:39 pmBOI - FSD
1 stop4h 36mUnited Airlines
Deal found 9/9$273
This Delta deal was found by Cheapflights users on 9/9. 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 12/58:01 amFSD - BOI
1 stop7h 16mDelta
Sun 12/73:12 pmBOI - FSD
1 stop6h 59mDelta
Deal found 9/9$274
This Delta deal was found by Cheapflights users on 9/11. 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 10/228:01 amFSD - GEG
1 stop7h 04mDelta
Sun 10/265:45 amGEG - FSD
1 stop7h 59mDelta
Deal found 9/11$310
This Delta deal was found by Cheapflights users on 9/10. 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.
Tue 10/215:20 amFSD - GEG
2 stops8h 41mDelta
Sun 10/265:45 amGEG - FSD
1 stop7h 59mDelta
Deal found 9/10$315
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/246:49 amFSD - GEG
1 stop6h 54mAmerican Airlines
Mon 10/2712:33 pmGEG - FSD
1 stop6h 42mAmerican Airlines
Deal found 9/9$319
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/151:58 pmFSD - BOI
1 stop4h 50mUnited Airlines
Sun 10/195:00 amBOI - FSD
1 stop4h 42mUnited Airlines
Deal found 9/10$325
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 9/186:00 amFSD - GEG
1 stop8h 44mAmerican Airlines
Tue 9/2312:35 pmGEG - FSD
1 stop6h 48mAmerican Airlines
Deal found 9/9$329
This Delta deal was found by Cheapflights users on 9/9. 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.
Sat 10/118:01 amFSD - GEG
1 stop7h 28mDelta
Tue 10/146:20 amGEG - FSD
2 stops14h 37mDelta
Deal found 9/9$333

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux Falls 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 September 11, 2025.
Use the filters below to find and compare flights from Sioux Falls to Idaho that are best for you.

Fly from

Sioux Falls

Fly to

Idaho

Route

Depart

Return

Price

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Wed 11/12

8:01 am-1:05 pm

1 stop7h 04m

Spokane

Sat 11/15

2:09 pm-11:00 pm

1 stop6h 51m

$251

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Tue 3/3

8:10 am-2:09 pm

1 stop6h 59m

Boise Air Term. Gowen Fld

Sat 3/7

5:40 am-12:35 pm

1 stop5h 55m

$255

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Wed 10/8

8:00 am-5:48 pm

2 stops10h 48m

Boise Air Term. Gowen Fld

Wed 10/15

5:00 am-10:42 am

1 stop4h 42m

$256

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Wed 9/24

6:00 am-9:42 am

1 stop4h 42m

Boise Air Term. Gowen Fld

Wed 10/8

5:00 am-10:42 am

1 stop4h 42m

$270

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Wed 10/15

6:00 am-9:53 am

1 stop4h 53m

Boise Air Term. Gowen Fld

Sat 10/18

5:39 pm-11:15 pm

1 stop4h 36m

$273

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Fri 12/5

8:01 am-2:17 pm

1 stop7h 16m

Boise Air Term. Gowen Fld

Sun 12/7

3:12 pm-11:11 pm

1 stop6h 59m

$274

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Wed 10/22

8:01 am-1:05 pm

1 stop7h 04m

Spokane

Sun 10/26

5:45 am-3:44 pm

1 stop7h 59m

$310

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Tue 10/21

5:20 am-12:01 pm

2 stops8h 41m

Spokane

Sun 10/26

5:45 am-3:44 pm

1 stop7h 59m

$315

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Fri 10/24

6:49 am-11:43 am

1 stop6h 54m

Spokane

Mon 10/27

12:33 pm-9:15 pm

1 stop6h 42m

$319

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Wed 10/15

1:58 pm-5:48 pm

1 stop4h 50m

Boise Air Term. Gowen Fld

Sun 10/19

5:00 am-10:42 am

1 stop4h 42m

$325

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 30 results
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Best time to book a flight from Sioux Falls to Idaho

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

What is the cheapest month to book a flight from Sioux Falls to Idaho?

Currently, October is the cheapest month in which you can book a flight from Sioux Falls to Idaho (average of $314). Flying from Sioux Falls to Idaho in June is currently the most expensive (average of $398). 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.

What is the cheapest time of day to fly from FSD to ID?

Find hourly flight availability from Sioux Falls to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sioux Falls to Idaho as you normally would.

How much does it cost to fly round-trip from Sioux Falls 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 September 11, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Sioux Falls to Idaho. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to Idaho. 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 from for flights from Sioux Falls to Idaho?

    Sioux Falls Joe Foss Field (FSD), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Sioux Falls to Idaho.

  • How long is the flight from Sioux Falls to Idaho?

    Departing from Sioux Falls to Idaho will take you 7h 04m. The distance from Sioux Falls to Idaho is about 1039 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Sioux Falls to Idaho one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $270. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Sioux Falls to Idaho for a low price.

  • What are the most popular routes from Sioux Falls to Idaho?

    The most popular route from Sioux Falls to Idaho is Sioux Falls Joe Foss Field - Spokane. You may also consider Sioux Falls Joe Foss Field - Boise Air Term. Gowen Fld or Sioux Falls Joe Foss Field - Jackson Hole.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sioux Falls 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 Sioux Falls to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Sioux Falls to Idaho (average of $314). Flying from Sioux Falls to Idaho in June is currently the most expensive (average of $398). 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.

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Top 2 airlines flying from Sioux Falls to Idaho

Discover the top 2 airlines that operate flights from Sioux Falls 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$231Average$329FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$427FlexibilityNo cancel feeOn-time69%

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