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Idaho

$126+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — BOI
Apr 29 — May 61
Tue 4/29
Tue 5/6
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 April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$251
(Delta)

One-way from

$126
(Delta)

Popular in

December

Cheapest in

October

Average price

$323
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. 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 April 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 April 24, 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.
Tue 6/177:59 pmFSD - GEG
1 stop5h 12mDelta
Tue 6/242:22 pmGEG - FSD
1 stop7h 22mDelta
Deal found 4/22$251
This American Airlines deal was found by Cheapflights users on 4/23. 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 9/37:21 amFSD - GEG
1 stop7h 14mAmerican Airlines
Sun 9/76:07 amGEG - FSD
1 stop8h 47mAmerican Airlines
Deal found 4/23$255
This Delta deal was found by Cheapflights users on 4/23. 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 5/147:59 pmFSD - BOI
1 stop5h 23mDelta
Mon 5/195:35 amBOI - FSD
1 stop5h 29mDelta
Deal found 4/23$255
This United Airlines deal was found by Cheapflights users on 4/23. 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 5/85:25 amRAP - IDA
1 stop4h 07mUnited Airlines
Mon 5/122:40 pmIDA - RAP
1 stop5h 46mUnited Airlines
Deal found 4/23$321
This United Airlines deal was found by Cheapflights users on 4/23. 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 5/146:00 amFSD - BOI
1 stop4h 59mUnited Airlines
Mon 5/191:35 pmBOI - FSD
2 stops9h 11mUnited Airlines
Deal found 4/23$330
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.
Mon 9/85:06 pmFSD - GEG
1 stop5h 57mUnited Airlines
Sat 9/1312:35 pmGEG - FSD
2 stops9h 05mUnited Airlines
Deal found 4/22$340
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/54:10 pmFSD - GEG
2 stops23h 23mAlaska Airlines
Mon 5/125:49 pmGEG - FSD
2 stops16h 07mAlaska Airlines
Deal found 4/21$379
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.
Fri 5/23:43 pmRAP - GEG
1 stop6h 07mUnited Airlines
Sun 5/45:29 amGEG - RAP
1 stop4h 29mUnited Airlines
Deal found 4/22$379
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.
Fri 5/95:36 amRAP - GEG
1 stop7h 49mAmerican Airlines
Sun 5/115:34 amGEG - RAP
1 stop9h 30mAmerican Airlines
Deal found 4/22$390
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.
Wed 5/141:47 pmFSD - BOI
2 stops29h 14mMultiple Airlines
Mon 5/194:45 pmBOI - FSD
1 stop20h 51mMultiple Airlines
Deal found 4/22$406
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sun 6/155:25 amRAP - BOI
1 stop4h 21mUnited Airlines
Mon 6/235:43 pmBOI - RAP
1 stop4h 17mUnited Airlines
Deal found 4/23$408
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.
Sat 5/245:03 pmFSD - JAC
1 stop25h 52mUnited Airlines
Wed 5/287:50 amJAC - FSD
2 stops12h 18mUnited Airlines
Deal found 4/22$453

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 April 24, 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 FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Tue 6/17

7:59 pm-11:11 pm

1 stop5h 12m

Spokane

Tue 6/24

2:22 pm-11:44 pm

1 stop7h 22m

$251

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Wed 9/3

7:21 am-12:35 pm

1 stop7h 14m

Spokane

Sun 9/7

6:07 am-4:54 pm

1 stop8h 47m

$255

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Wed 5/14

7:59 pm-12:22 am

1 stop5h 23m

Boise Air Term. Gowen Fld

Mon 5/19

5:35 am-12:04 pm

1 stop5h 29m

$255

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Thu 5/8

5:25 am-9:32 am

1 stop4h 07m

Idaho Falls Fanning Field

Mon 5/12

2:40 pm-8:26 pm

1 stop5h 46m

$321

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Wed 5/14

6:00 am-9:59 am

1 stop4h 59m

Boise Air Term. Gowen Fld

Mon 5/19

1:35 pm-11:46 pm

2 stops9h 11m

$330

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Mon 9/8

5:06 pm-9:03 pm

1 stop5h 57m

Spokane

Sat 9/13

12:35 pm-11:40 pm

2 stops9h 05m

$340

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Mon 5/5

4:10 pm-1:33 pm

2 stops23h 23m

Spokane

Mon 5/12

5:49 pm-11:56 am

2 stops16h 07m

$379

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Fri 5/9

5:36 am-12:25 pm

1 stop7h 49m

Spokane

Sun 5/11

5:34 am-4:04 pm

1 stop9h 30m

$390

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Wed 5/14

1:47 pm-6:01 pm

2 stops29h 14m

Boise Air Term. Gowen Fld

Mon 5/19

4:45 pm-2:36 pm

1 stop20h 51m

$406

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Sun 6/15

5:25 am-9:46 am

1 stop4h 21m

Boise Air Term. Gowen Fld

Mon 6/23

5:43 pm-10:00 pm

1 stop4h 17m

$408

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 22 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, October is the cheapest month in which you can book a flight from South Dakota to Idaho (average of $314). Flying from South Dakota to Idaho in June is currently the most expensive (average of $419). 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 April 24, 2025.

When flying from South Dakota to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 April 24, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from South Dakota to Idaho to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.1

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
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.1

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
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.1

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
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.1

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
9,918 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.1

Overall

8.0

Entertainment

7.1

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 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.

  • 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 $126 on Delta. Other airlines that offer cheap prices include American Airlines from $160 and United Airlines from $294 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, October is the cheapest month in which you can book a flight from South Dakota to Idaho (average of $314). Flying from South Dakota to Idaho in June is currently the most expensive (average of $419). 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$204Average$315FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$431FlexibilityNo cancel feeOn-time69%

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