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South Dakota

$156+ Cheap flights from Idaho to South Dakota

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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FSD
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Idaho to South Dakota

Keep the following information in mind while searching for Idaho to South Dakota flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(Delta)

One-way from

$156
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$391
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Sioux Falls Joe Foss Field flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Sioux Falls Joe Foss Field flights.
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From Idaho to South Dakota
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One-way flight from Idaho to South Dakota
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Highest demand for flights based on searches. 8% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Idaho to South Dakota

Cheapest flights from Idaho to South Dakota
Explore the most affordable flight options available from Idaho to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Delta deal was found by Cheapflights users on 2/20. 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 3/215:30 amBOI - RAP
1 stop5h 34mDelta
Thu 3/274:16 pmRAP - BOI
1 stop7h 43mDelta
Deal found 2/20$249
This United Airlines deal was found by Cheapflights users on 2/18. 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.
Thu 3/65:00 amGEG - RAP
1 stop5h 06mUnited Airlines
Mon 3/101:15 pmRAP - GEG
1 stop5h 15mUnited Airlines
Deal found 2/18$259
This Delta deal was found by Cheapflights users on 2/20. 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 11/152:05 pmGEG - FSD
1 stop6h 42mDelta
Wed 11/197:37 pmFSD - GEG
1 stop5h 26mDelta
Deal found 2/20$259
This Delta deal was found by Cheapflights users on 2/19. 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 3/73:00 pmBOI - FSD
1 stop7h 07mDelta
Tue 3/116:59 pmFSD - BOI
1 stop6h 00mDelta
Deal found 2/19$289
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Thu 3/132:35 pmIDA - RAP
1 stop6h 22mUnited Airlines
Mon 3/175:15 amRAP - IDA
1 stop4h 19mUnited Airlines
Deal found 2/19$290
This Delta deal was found by Cheapflights users on 2/18. 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 3/62:10 pmGEG - RAP
1 stop7h 31mDelta
Mon 3/104:16 pmRAP - GEG
2 stops8h 42mDelta
Deal found 2/18$294
This United Airlines deal was found by Cheapflights users on 2/19. 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 3/75:25 pmBOI - FSD
1 stop5h 18mUnited Airlines
Tue 3/118:00 amFSD - BOI
2 stops11h 05mUnited Airlines
Deal found 2/19$295
This United Airlines deal was found by Cheapflights users on 2/20. 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 3/77:00 amJAC - RAP
1 stop5h 40mUnited Airlines
Tue 3/118:20 amRAP - JAC
1 stop5h 02mUnited Airlines
Deal found 2/20$320
This United deal was found by Cheapflights users on 2/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/15:22 pmBOI - RAP
1 stop4h 38mUnited Airlines
Fri 8/85:30 amRAP - BOI
1 stop4h 13mUnited Airlines
Deal found 2/20$420
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Sat 3/86:20 amGEG - FSD
2 stops12h 16mMultiple Airlines
Wed 3/123:33 pmFSD - GEG
3 stops33h 54mMultiple Airlines
Deal found 2/20$533
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Sat 2/225:00 amGEG - FSD
1 stop5h 42mUnited Airlines
Wed 2/2611:20 amFSD - GEG
2 stops11h 18mUnited Airlines
Deal found 2/20$541
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Fri 3/211:31 pmBOI - RAP
2 stops25h 00mMultiple Airlines
Thu 3/275:40 pmRAP - BOI
2 stops19h 54mMultiple Airlines
Deal found 2/20$548

Find flights from Idaho to South Dakota within your budget

Customize your flight search to find flights from Idaho to South Dakota 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 February 20, 2025.

Fly from

Idaho

Fly to

South Dakota

Route

Depart

Return

Price

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Fri 3/21

5:30 am-11:04 am

1 stop5h 34m

Rapid City

Thu 3/27

4:16 pm-11:59 pm

1 stop7h 43m

$249

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Thu 3/6

5:00 am-11:06 am

1 stop5h 06m

Rapid City

Mon 3/10

1:15 pm-5:30 pm

1 stop5h 15m

$259

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Fri 3/7

3:00 pm-11:07 pm

1 stop7h 07m

Sioux Falls Joe Foss Field

Tue 3/11

6:59 pm-11:59 pm

1 stop6h 00m

$289

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

Sat 3/8

2:10 pm-11:26 pm

1 stop7h 16m

Sioux Falls Joe Foss Field

Wed 3/12

6:59 pm-10:40 pm

1 stop5h 41m

$289

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Thu 3/13

2:35 pm-8:57 pm

1 stop6h 22m

Rapid City

Mon 3/17

5:15 am-9:34 am

1 stop4h 19m

$290

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Thu 3/6

2:10 pm-10:41 pm

1 stop7h 31m

Rapid City

Mon 3/10

4:16 pm-11:58 pm

2 stops8h 42m

$294

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Fri 3/7

5:25 pm-11:43 pm

1 stop5h 18m

Sioux Falls Joe Foss Field

Tue 3/11

8:00 am-6:05 pm

2 stops11h 05m

$295

JacksonRapid City

JAC - RAP

JACRAP

Jackson Hole

Fri 3/7

7:00 am-12:40 pm

1 stop5h 40m

Rapid City

Tue 3/11

8:20 am-1:22 pm

1 stop5h 02m

$320

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Fri 8/1

5:22 pm-10:00 pm

1 stop4h 38m

Rapid City

Fri 8/8

5:30 am-9:43 am

1 stop4h 13m

$420

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

Sat 3/8

6:20 am-8:36 pm

2 stops12h 16m

Sioux Falls Joe Foss Field

Wed 3/12

3:33 pm-11:27 pm

3 stops33h 54m

$533

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 23 results
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Best time to book a flight from Idaho to South Dakota

Have a flexible travel schedule? Discover the best time to fly to South Dakota from Idaho 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.

Travel insights for flights from Idaho to South Dakota

Get recent, data-driven insights about flights from Idaho to South Dakota including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Idaho to South Dakota?

Currently, September is the cheapest month in which you can book a flight from Idaho to South Dakota (average of $334). Flying from Idaho to South Dakota in December is currently the most expensive (average of $446). 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 ID to SD?

Find hourly flight availability from Idaho to South Dakota. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

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

Rainfall in South Dakota by month

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

In terms of precipitation, rainfall in South Dakota ranges from 0.6 - 3.9 inches per month. June is typically the wettest month, when rainfall can reach 3.9 in. January is typically the driest time to visit South Dakota when rainfall is around 0.6 in.

Temperature in South Dakota by month

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

If weather is an important factor for your trip to South Dakota, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

Reviews of airlines servicing South Dakota

Get insights into the airlines that provide service to South Dakota. 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 South Dakota. Reviews last updated February 20, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and United Airlines from Idaho to South Dakota. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,697 reviews

Food

7.1

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

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
9,697 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Food

7.1

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

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
8,219 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Food

7.1

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

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
8,765 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Food

7.1

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

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
765 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Food

7.1

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

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
9,697 reviews

Food

7.1

Boarding

8.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

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 Idaho to South Dakota. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    The cheapest airline one-way is Allegiant Air, with whom users have recently found tickets for as low as $156. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Idaho to South Dakota for a low price.

  • Can I find deals for flights from Idaho to South Dakota that include hotel bookings?

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

  • How can I find direct flights from Idaho to South Dakota?

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

  • Can I find deals for business class flights from Idaho to South Dakota?

    Yes. Cheapflights offers flight deals from Idaho to South Dakota 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 Idaho to South Dakota?

    Currently, September is the cheapest month in which you can book a flight from Idaho to South Dakota (average of $334). Flying from Idaho to South Dakota in December is currently the most expensive (average of $446). 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 Idaho to South Dakota

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Idaho to South Dakota

Discover the top 2 airlines that operate flights from Idaho to South Dakota. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$198Average$337FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$219Average$406FlexibilityNo cancel feeOn-time69%
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