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$126+ Cheap flights from Sioux Falls (FSD) 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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$255
(American Airlines)

One-way from

$126
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$357
From Sioux Falls Joe Foss Field to Idaho
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One-way flight from Sioux Falls Joe Foss Field to Idaho
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Highest demand for flights based on searches. 13% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

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.
Tue 9/26:00 amFSD - BOI
1 stop7h 19mAmerican Airlines
Thu 9/111:38 pmBOI - FSD
1 stop6h 41mAmerican Airlines
Deal found 6/10$255
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/206:00 amFSD - GEG
1 stop7h 44mAmerican Airlines
Sat 8/2312:29 pmGEG - FSD
1 stop6h 34mAmerican Airlines
Deal found 6/11$285
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/176:00 amFSD - BOI
2 stops8h 30mUnited Airlines
Sun 9/215:00 amBOI - FSD
1 stop4h 41mUnited Airlines
Deal found 6/11$285
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.
Mon 6/307:59 pmFSD - GEG
1 stop5h 12mDelta
Wed 7/22:22 pmGEG - FSD
1 stop7h 22mDelta
Deal found 6/9$289
This Delta deal was found by Cheapflights users on 6/12. 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 7/176:16 pmFSD - BOI
1 stop6h 43mDelta
Tue 7/225:40 amBOI - FSD
1 stop5h 41mDelta
Deal found 6/12$314
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/269:15 amFSD - JAC
1 stop6h 57mUnited Airlines
Sun 8/314:10 pmJAC - FSD
1 stop6h 30mUnited Airlines
Deal found 6/10$430
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/269:33 pmFSD - BOI
1 stop25h 14mMultiple Airlines
Mon 6/309:43 amBOI - FSD
2 stops10h 36mMultiple Airlines
Deal found 6/11$437
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:00 amFSD - GEG
2 stops30h 38mUnited Airlines
Tue 8/261:38 pmGEG - FSD
1 stop4h 51mUnited Airlines
Deal found 6/9$443
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2312:30 pmFSD - GEG
2 stops13h 29mAlaska Airlines
Mon 10/277:39 pmGEG - FSD
2 stops14h 19mAlaska Airlines
Deal found 6/10$505
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/261:09 pmFSD - JAC
1 stop8h 44mAmerican Airlines
Sun 6/297:00 amJAC - FSD
1 stop8h 34mAmerican Airlines
Deal found 6/11$818

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 June 12, 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 FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Tue 9/2

6:00 am-12:19 pm

1 stop7h 19m

Boise Air Term. Gowen Fld

Thu 9/11

1:38 pm-9:19 pm

1 stop6h 41m

$255

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Wed 9/17

6:00 am-1:30 pm

2 stops8h 30m

Boise Air Term. Gowen Fld

Sun 9/21

5:00 am-10:41 am

1 stop4h 41m

$285

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Wed 8/20

6:00 am-11:44 am

1 stop7h 44m

Spokane

Sat 8/23

12:29 pm-9:03 pm

1 stop6h 34m

$285

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Mon 6/30

7:59 pm-11:11 pm

1 stop5h 12m

Spokane

Wed 7/2

2:22 pm-11:44 pm

1 stop7h 22m

$289

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Tue 9/2

10:59 am-9:42 pm

2 stops11h 43m

Boise Air Term. Gowen Fld

Thu 9/11

3:00 pm-10:49 pm

1 stop6h 49m

$315

Sioux FallsJackson

FSD - JAC

FSDJAC

Sioux Falls Joe Foss Field

Tue 8/26

9:15 am-3:12 pm

1 stop6h 57m

Jackson Hole

Sun 8/31

4:10 pm-11:40 pm

1 stop6h 30m

$430

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Thu 6/26

9:33 pm-9:47 pm

1 stop25h 14m

Boise Air Term. Gowen Fld

Mon 6/30

9:43 am-9:19 pm

2 stops10h 36m

$437

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Fri 8/22

6:00 am-10:38 am

2 stops30h 38m

Spokane

Tue 8/26

1:38 pm-8:29 pm

1 stop4h 51m

$443

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Thu 10/23

12:30 pm-11:59 pm

2 stops13h 29m

Spokane

Mon 10/27

7:39 pm-11:58 am

2 stops14h 19m

$505

Sioux FallsJackson

FSD - JAC

FSDJAC

Sioux Falls Joe Foss Field

Thu 6/26

1:09 pm-8:53 pm

1 stop8h 44m

Jackson Hole

Sun 6/29

7:00 am-4:34 pm

1 stop8h 34m

$818

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 21 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 $395). 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 June 12, 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.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
See what other customers who have flown with Alaska Airlines, Delta and United Airlines from Sioux Falls to Idaho have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Allegiant Air
7.3
Good
725 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

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

    The cheapest airline one-way is Allegiant Air, with whom users have recently found tickets for as low as $126. However, be on the lookout for offers from Frontier 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 $395). 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 Sioux Falls to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$195Average$308FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$286Average$419FlexibilityNo cancel feeOn-time69%

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