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Idaho

$179+ 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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — BOI
Nov 5 — Nov 121
Wed 11/5
Wed 11/12
1 adult, Economy
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Cheap 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 October 6, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(United Airlines)

One-way from

$179
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$423
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Boise Air Term. Gowen Fld flights.
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From South Dakota to Idaho
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One-way flight from South Dakota to Idaho
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Highest demand for flights based on searches. 9% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 6, 2025.

This United Airlines deal was found by Cheapflights users on 10/5. 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 10/315:14 pmFSD - JAC
1 stop4h 23mUnited Airlines
Mon 11/32:40 pmJAC - FSD
1 stop4h 43mUnited Airlines
Deal found 10/5$249
This Delta deal was found by Cheapflights users on 10/5. 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 10/296:05 amRAP - GEG
1 stop8h 00mDelta
Tue 11/42:17 pmGEG - RAP
1 stop7h 19mDelta
Deal found 10/5$249
This Delta deal was found by Cheapflights users on 10/6. 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.
Wed 10/295:30 amFSD - GEG
1 stop8h 11mDelta
Wed 11/52:17 pmGEG - FSD
1 stop6h 40mDelta
Deal found 10/6$251
This Delta deal was found by Cheapflights users on 10/5. 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 10/244:34 pmRAP - BOI
1 stop7h 22mDelta
Tue 10/283:00 pmBOI - RAP
1 stop7h 36mDelta
Deal found 10/5$254
This Delta deal was found by Cheapflights users on 10/4. 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 10/296:05 amRAP - GEG
1 stop8h 00mDelta
Mon 11/31:10 pmGEG - RAP
2 stops8h 26mDelta
Deal found 10/4$254
This Delta deal was found by Cheapflights users on 10/5. 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 11/15:30 amFSD - GEG
1 stop8h 11mDelta
Tue 11/41:10 pmGEG - FSD
2 stops7h 47mDelta
Deal found 10/5$256
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/213:20 pmRAP - BOI
1 stop6h 04mUnited Airlines
Sat 10/259:30 amBOI - RAP
1 stop5h 15mUnited Airlines
Deal found 10/6$259
This Delta deal was found by Cheapflights users on 10/5. 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 11/16:05 amRAP - GEG
1 stop8h 00mDelta
Sat 11/82:17 pmGEG - RAP
1 stop7h 19mDelta
Deal found 10/5$269
This United Airlines deal was found by Cheapflights users on 10/5. 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 11/48:57 amFSD - SUN
1 stop5h 43mUnited Airlines
Tue 11/112:43 pmSUN - FSD
1 stop4h 40mUnited Airlines
Deal found 10/5$271
This Delta deal was found by Cheapflights users on 10/4. 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 10/241:35 pmFSD - GEG
1 stop8h 11mDelta
Mon 10/272:17 pmGEG - FSD
1 stop6h 40mDelta
Deal found 10/4$274
This Delta deal was found by Cheapflights users on 10/4. 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 17mDelta
Mon 12/85:35 amBOI - FSD
1 stop6h 13mDelta
Deal found 10/4$274
This Delta deal was found by Cheapflights users on 10/6. 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.
Sat 10/256:05 amRAP - BOI
1 stop7h 57mDelta
Wed 10/293:00 pmBOI - RAP
1 stop7h 36mDelta
Deal found 10/6$274

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 October 6, 2025.
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

Sioux FallsJackson

FSD - JAC

FSDJAC

Sioux Falls Joe Foss Field

Fri 10/31

5:14 pm-8:37 pm

1 stop4h 23m

Jackson Hole

Mon 11/3

2:40 pm-8:23 pm

1 stop4h 43m

$249

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Sat 2/28

4:00 pm-11:16 pm

1 stop8h 16m

Spokane

Tue 3/3

2:05 pm-10:14 pm

1 stop7h 09m

$249

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Sat 11/1

6:05 am-1:05 pm

1 stop8h 00m

Spokane

Sat 11/8

2:17 pm-10:36 pm

1 stop7h 19m

$249

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Sat 11/1

8:45 am-3:21 pm

1 stop7h 36m

Spokane

Wed 11/5

1:47 pm-8:26 pm

1 stop5h 39m

$249

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Thu 10/30

6:05 am-1:05 pm

1 stop8h 00m

Spokane

Sat 11/8

2:17 pm-10:36 pm

1 stop7h 19m

$249

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Wed 10/29

6:05 am-1:05 pm

1 stop8h 00m

Spokane

Sat 11/8

2:17 pm-10:36 pm

1 stop7h 19m

$249

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Sat 11/1

6:00 am-12:09 pm

1 stop8h 09m

Spokane

Tue 11/4

1:14 pm-10:27 pm

1 stop7h 13m

$251

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Wed 10/29

6:00 am-12:20 pm

1 stop8h 20m

Spokane

Wed 11/5

1:14 pm-10:27 pm

1 stop7h 13m

$251

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Wed 10/29

8:47 am-12:45 pm

1 stop5h 58m

Spokane

Wed 11/5

1:47 pm-8:23 pm

1 stop4h 36m

$251

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Sat 11/1

5:30 am-11:41 am

1 stop8h 11m

Spokane

Tue 11/4

2:17 pm-10:57 pm

1 stop6h 40m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/4

Showing 1-10 of 37 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 November is currently the most expensive (average of $350). 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 SD to ID?

Find hourly flight availability from South Dakota 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 October 6, 2025.

When flying from South Dakota to Idaho, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 59% versus a flight in the afternoon.

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 October 6, 2025.
See what other customers who have flown with Delta and United 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
8.0
Very good
7,967 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
7,967 reviews
Delta
8.0
Very good
7,967 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
8,957 reviews
Delta
8.0
Very good
7,967 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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 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, Delta, and American Airlines can get you from South Dakota to Idaho in just under 4h 23m. Your travel time can differ by up to 3h 53m. 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.

  • What are the cheapest airlines to fly from South Dakota to Idaho one-way?

    One-way options have recently been found by users for as low as $179 on Allegiant Air. Other airlines that offer cheap prices include American Airlines from $271 and United Airlines from $320 one-way.

  • 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 November is currently the most expensive (average of $350). 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 2 airlines flying from South Dakota to Idaho

Discover the top 2 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 October 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$243Average$293FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$424FlexibilityNo cancel feeOn-time69%

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