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South Dakota

$142+ 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FSD
abr. 27 — may. 41
dom. 4/27
dom. 5/4
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 abril 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$229
(Delta)

One-way from

$142
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$423
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. 10% potential increase in price ($48 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 April 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 abril 22, 2025.

This Delta deal was found by Cheapflights users on 4/22. 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.
vie. 5/2312:39 pmGEG - FSD
1 stop8h 46mDelta
vie. 5/307:59 pmFSD - GEG
1 stop5h 16mDelta
Deal found 4/22$229
This United Airlines deal was found by Cheapflights users on 4/22. 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.
mar. 5/205:25 pmBOI - RAP
1 stop4h 51mUnited Airlines
mar. 5/275:25 amRAP - BOI
1 stop4h 21mUnited Airlines
Deal found 4/22$249
This United Airlines deal was found by Cheapflights users on 4/22. 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.
mié. 9/104:00 pmGEG - RAP
1 stop4h 59mUnited Airlines
mié. 9/1710:15 amRAP - GEG
1 stop5h 58mUnited Airlines
Deal found 4/22$249
This Delta deal was found by Cheapflights users on 4/22. 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.
mar. 7/83:25 pmBOI - FSD
1 stop6h 22mDelta
lun. 7/147:37 pmFSD - BOI
1 stop4h 52mDelta
Deal found 4/22$255
This United Airlines deal was found by Cheapflights users on 4/21. 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.
mié. 6/45:43 pmBOI - FSD
1 stop5h 01mUnited Airlines
mié. 6/116:00 amFSD - BOI
1 stop4h 46mUnited Airlines
Deal found 4/21$284
This American Airlines deal was found by Cheapflights users on 4/22. 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.
jue. 8/216:10 amGEG - FSD
1 stop8h 20mAmerican Airlines
dom. 8/241:45 pmFSD - GEG
1 stop8h 42mAmerican Airlines
Deal found 4/22$304
This United Airlines deal was found by Cheapflights users on 4/22. 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.
sáb. 5/311:37 pmGEG - FSD
1 stop5h 31mUnited Airlines
sáb. 6/711:45 amFSD - GEG
1 stop7h 19mUnited Airlines
Deal found 4/22$312
This Mytrip deal was found by Cheapflights users on 4/22. 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.
vie. 6/610:33 pmBOI - RAP
1 stop16h 08mMultiple Airlines
mié. 6/1110:18 pmRAP - BOI
3 stops34h 23mMultiple Airlines
Deal found 4/22$375
This United Airlines deal was found by Cheapflights users on 4/22. 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.
mié. 5/77:00 amJAC - RAP
1 stop3h 58mUnited Airlines
dom. 5/115:25 amRAP - JAC
1 stop4h 14mUnited Airlines
Deal found 4/22$399
This Delta deal was found by Cheapflights users on 4/22. 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.
mié. 9/107:21 pmGEG - RAP
2 stops13h 44mDelta
mié. 9/176:20 amRAP - GEG
1 stop7h 50mDelta
Deal found 4/22$459
This Delta deal was found by Cheapflights users on 4/22. 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.
mié. 5/142:47 pmBOI - RAP
1 stop7h 47mDelta
vie. 5/166:33 amRAP - BOI
1 stop7h 13mDelta
Deal found 4/22$470
This American Airlines deal was found by Cheapflights users on 4/22. 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.
sáb. 5/177:14 amBOI - RAP
1 stop8h 50mAmerican Airlines
mié. 5/2112:32 pmRAP - BOI
1 stop9h 28mAmerican Airlines
Deal found 4/22$514

Cheapflights Fare Finder

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 abril 22, 2025.
Use the filters below to find and compare flights from Idaho to South Dakota that are best for you.

Fly from

Idaho

Fly to

South Dakota

Route

Depart

Return

Price

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

vie. 5/23

12:39 pm-11:25 pm

1 stop8h 46m

Sioux Falls Joe Foss Field

vie. 5/30

7:59 pm-11:15 pm

1 stop5h 16m

$229

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

mar. 5/20

5:25 pm-10:16 pm

1 stop4h 51m

Rapid City

mar. 5/27

5:25 am-9:46 am

1 stop4h 21m

$249

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

mié. 9/10

4:00 pm-9:59 pm

1 stop4h 59m

Rapid City

mié. 9/17

10:15 am-3:13 pm

1 stop5h 58m

$249

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

mar. 7/8

3:25 pm-10:47 pm

1 stop6h 22m

Sioux Falls Joe Foss Field

lun. 7/14

7:37 pm-11:29 pm

1 stop4h 52m

$255

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

mié. 6/4

5:43 pm-11:44 pm

1 stop5h 01m

Sioux Falls Joe Foss Field

mié. 6/11

6:00 am-9:46 am

1 stop4h 46m

$284

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

jue. 8/21

6:10 am-4:30 pm

1 stop8h 20m

Sioux Falls Joe Foss Field

dom. 8/24

1:45 pm-8:27 pm

1 stop8h 42m

$304

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

sáb. 5/31

1:37 pm-9:08 pm

1 stop5h 31m

Sioux Falls Joe Foss Field

sáb. 6/7

11:45 am-5:04 pm

1 stop7h 19m

$312

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

vie. 6/6

10:33 pm-2:41 pm

1 stop16h 08m

Rapid City

mié. 6/11

10:18 pm-8:41 am

3 stops34h 23m

$375

JacksonRapid City

JAC - RAP

JACRAP

Jackson Hole

mié. 5/7

7:00 am-10:58 am

1 stop3h 58m

Rapid City

dom. 5/11

5:25 am-9:39 am

1 stop4h 14m

$399

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

mié. 9/10

7:21 pm-10:05 am

2 stops13h 44m

Rapid City

mié. 9/17

6:20 am-1:10 pm

1 stop7h 50m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 25 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.

Cheapflights Insights

Everything you need to know about your flight from Idaho to South Dakota

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 abril 22, 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 abril 22, 2025.
Read reviews from past customers who have flown Delta, United Airlines and Allegiant Air 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.
Delta
8.0
Very good
7,920 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,683 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Allegiant Air
7.3
Good
734 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 $145. However, be on the lookout for offers from United Airlines and American 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 abril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$198Average$321FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$228Average$395FlexibilityNo cancel feeOn-time69%

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