South Dakota

$230+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FSD
Jan 26 — Feb 21
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Cheap flight deals from Idaho to South Dakota

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) to South Dakota (USSD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$249
(Delta)

One-way from

$230
(Delta)
From Idaho to South Dakota
One-way flight from Idaho to South Dakota

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 January 21, 2025.

This United Airlines deal was found by Cheapflights users on 1/21. 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.
Wed 2/52:32 pmBOI - FSD
1 stop4h 51mUnited Airlines
Sun 2/95:55 amFSD - BOI
1 stop5h 10mUnited Airlines
Deal found 1/21$244
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/25:30 amBOI - RAP
1 stop5h 34mDelta
Sat 4/54:17 pmRAP - BOI
1 stop7h 32mDelta
Deal found 1/21$249
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/76:00 amGEG - RAP
1 stop8h 33mDelta
Wed 3/126:00 amRAP - GEG
1 stop7h 58mDelta
Deal found 1/21$249
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 2/42:28 pmIDA - RAP
1 stop6h 09mUnited Airlines
Sat 2/85:20 amRAP - IDA
1 stop4h 32mUnited Airlines
Deal found 1/20$299
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Fri 4/45:25 pmBOI - RAP
1 stop4h 35mUnited Airlines
Mon 4/75:55 pmRAP - BOI
1 stop5h 08mUnited Airlines
Deal found 1/21$305
This Delta deal was found by Cheapflights users on 1/19. 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 2/285:30 amBOI - FSD
1 stop6h 04mDelta
Sun 3/26:59 pmFSD - BOI
1 stop5h 59mDelta
Deal found 1/19$309
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/136:00 amGEG - FSD
1 stop7h 43mDelta
Mon 3/176:59 pmFSD - GEG
1 stop5h 41mDelta
Deal found 1/21$309
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 2/54:20 pmJAC - RAP
1 stop4h 17mUnited Airlines
Sun 2/98:18 amRAP - JAC
1 stop4h 59mUnited Airlines
Deal found 1/20$319
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 3/131:46 pmGEG - FSD
1 stop7h 57mUnited Airlines
Mon 3/175:00 pmFSD - GEG
1 stop5h 53mUnited Airlines
Deal found 1/20$534
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/82:11 amBOI - FSD
1 stop9h 16mAmerican Airlines
Mon 7/147:11 amFSD - BOI
1 stop8h 29mAmerican Airlines
Deal found 1/20$579
This Delta deal was found by Cheapflights users on 1/20. 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.
Tue 2/46:20 amPIH - RAP
2 stops9h 13mDelta
Sat 2/811:49 amRAP - PIH
2 stops10h 38mDelta
Deal found 1/20$1,611

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 January 21, 2025.

Fly from

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Fly to

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Route

Depart

Return

Price

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Wed 2/5

2:32 pm-8:23 pm

1 stop4h 51m

Sioux Falls Joe Foss Field

Sun 2/9

5:55 am-10:05 am

1 stop5h 10m

$244

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Wed 4/2

5:30 am-11:04 am

1 stop5h 34m

Rapid City

Sat 4/5

4:17 pm-11:49 pm

1 stop7h 32m

$249

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Fri 3/7

6:00 am-3:33 pm

1 stop8h 33m

Rapid City

Wed 3/12

6:00 am-12:58 pm

1 stop7h 58m

$249

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Tue 2/4

2:28 pm-8:37 pm

1 stop6h 09m

Rapid City

Sat 2/8

5:20 am-9:52 am

1 stop4h 32m

$299

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Fri 4/4

5:25 pm-10:00 pm

1 stop4h 35m

Rapid City

Mon 4/7

5:55 pm-11:03 pm

1 stop5h 08m

$305

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Fri 2/28

5:30 am-12:34 pm

1 stop6h 04m

Sioux Falls Joe Foss Field

Sun 3/2

6:59 pm-11:58 pm

1 stop5h 59m

$309

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

Thu 3/13

6:00 am-3:43 pm

1 stop7h 43m

Sioux Falls Joe Foss Field

Mon 3/17

6:59 pm-10:40 pm

1 stop5h 41m

$309

JacksonRapid City

JAC - RAP

JACRAP

Jackson Hole

Wed 2/5

4:20 pm-8:37 pm

1 stop4h 17m

Rapid City

Sun 2/9

8:18 am-1:17 pm

1 stop4h 59m

$319

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

Thu 3/13

1:46 pm-11:43 pm

1 stop7h 57m

Sioux Falls Joe Foss Field

Mon 3/17

5:00 pm-8:53 pm

1 stop5h 53m

$534

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Tue 7/8

2:11 am-12:27 pm

1 stop9h 16m

Sioux Falls Joe Foss Field

Mon 7/14

7:11 am-2:40 pm

1 stop8h 29m

$579

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 12 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 January 21, 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 January 21, 2025.
Read reviews from past customers who have flown 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.
8.0
Very good
8,521 reviews

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

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

8.0
Very good
8,521 reviews
8.0
Very good
8,521 reviews

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

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

7.4
Good
8,985 reviews
8.0
Very good
8,521 reviews

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

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

7.2
Good
10,000 reviews
8.0
Very good
8,521 reviews

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

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.
  • 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.

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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.

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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$198Average$343FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$228Average$406FlexibilityNo cancel feeOn-time69%
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