HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sioux Falls

$126+ Cheap flights from Boise to Sioux Falls (BOI - FSD)

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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FSD
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boise to Sioux Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Boise to Sioux Falls

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Sioux Falls (FSD). 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 August 18, 2025.

Round-trip from

$261
(Kiwi.com)

One-way from

$126
(Delta)

Popular in

December

Cheapest in

June

Average price

$340
From Boise Air Term. Gowen Fld to Sioux Falls Joe Foss Field
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Sioux Falls Joe Foss Field
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Boise to Sioux Falls

Cheapest flights from Boise to Sioux Falls
Explore the most affordable flight options available from Boise to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/159:26 pmBOI - FSD
2 stops39h 22mMultiple Airlines
Mon 9/2212:43 pmFSD - BOI
1 stop8h 48mMultiple Airlines
Deal found 8/16$261
This Delta deal was found by Cheapflights users on 8/15. 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 8/275:30 amBOI - FSD
1 stop5h 46mDelta
Fri 9/56:04 pmFSD - BOI
1 stop6h 52mDelta
Deal found 8/15$329
This Delta deal was found by Cheapflights users on 8/16. 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 9/43:06 pmBOI - FSD
1 stop7h 40mDelta
Sun 9/76:04 pmFSD - BOI
1 stop6h 52mDelta
Deal found 8/16$344
This United Airlines deal was found by Cheapflights users on 8/16. 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 9/155:00 amBOI - FSD
1 stop4h 41mUnited Airlines
Mon 9/226:00 amFSD - BOI
1 stop4h 42mUnited Airlines
Deal found 8/16$400
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/45:00 amBOI - FSD
1 stop4h 41mUnited Airlines
Mon 9/85:06 pmFSD - BOI
1 stop6h 15mUnited Airlines
Deal found 8/18$409
This United Airlines deal was found by Cheapflights users on 8/15. 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 8/272:13 pmBOI - FSD
2 stops8h 27mUnited Airlines
Fri 9/59:16 amFSD - BOI
1 stop5h 19mUnited Airlines
Deal found 8/15$454
This United Airlines deal was found by Cheapflights users on 8/16. 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 8/1612:39 pmBOI - FSD
1 stop8h 21mUnited Airlines
Mon 8/185:10 pmFSD - BOI
1 stop5h 24mUnited Airlines
Deal found 8/16$459

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Sioux Falls 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 August 18, 2025.
Use the filters below to find and compare flights from Boise to Sioux Falls that are best for you.

Fly from

Boise

Fly to

Sioux Falls

Route

Depart

Return

Price

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Mon 9/15

9:26 pm-1:48 pm

2 stops39h 22m

Sioux Falls Joe Foss Field

Mon 9/22

12:43 pm-8:31 pm

1 stop8h 48m

$261

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Thu 9/4

3:06 pm-11:46 pm

1 stop7h 40m

Sioux Falls Joe Foss Field

Sun 9/7

6:04 pm-11:56 pm

1 stop6h 52m

$344

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Mon 9/15

5:00 am-10:41 am

1 stop4h 41m

Sioux Falls Joe Foss Field

Mon 9/22

6:00 am-9:42 am

1 stop4h 42m

$400

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Thu 9/4

5:00 am-10:41 am

1 stop4h 41m

Sioux Falls Joe Foss Field

Mon 9/8

5:06 pm-10:21 pm

1 stop6h 15m

$409

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Thu 9/4

2:13 pm-11:40 pm

2 stops8h 27m

Sioux Falls Joe Foss Field

Sun 9/7

6:00 am-1:30 pm

2 stops8h 30m

$468

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Mon 9/1

5:00 am-10:41 am

1 stop4h 41m

Sioux Falls Joe Foss Field

Fri 9/5

8:00 am-11:31 am

1 stop28h 31m

$480

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Thu 10/16

5:00 am-10:42 am

1 stop4h 42m

Sioux Falls Joe Foss Field

Sun 10/19

6:00 am-9:42 am

1 stop4h 42m

$483

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Sat 9/6

3:06 pm-11:46 pm

1 stop7h 40m

$126

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Sat 9/6

2:16 pm-7:46 pm

3 stops52h 30m

$321

BoiseSioux Falls

BOI - FSD

BOIFSD

Boise Air Term. Gowen Fld

Fri 9/5

3:06 pm-11:46 pm

1 stop7h 40m

$338

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 11 results
1
2

Best time to book a flight from Boise to Sioux Falls

Have a flexible travel schedule? Discover the best time to fly to Sioux Falls from Boise 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 Boise to Sioux Falls

What is the cheapest month to book a flight from Boise to Sioux Falls?

Currently, September is the cheapest month in which you can book a flight from Boise to Sioux Falls (average of $334). Flying from Boise to Sioux Falls 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.

Reviews of airlines servicing Sioux Falls

Get insights into the airlines that provide service to Sioux Falls. 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 Sioux Falls. Reviews last updated August 18, 2025.
See what other customers who have flown with Delta and United Airlines from Boise to Sioux Falls have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

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
8,925 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

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 Boise to Sioux Falls. 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 Boise to Sioux Falls?

    There are many flights that can get you from Boise to Sioux Falls in 4h 41m. Fly via Delta or United Airlines to get the fastest option. The distance between Boise and Sioux Falls is about 972 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Boise to Sioux Falls round-trip?

    Our cheapest airline available from Boise to Sioux Falls is United Airlines. Our recent data shows that you can find tickets from as low as $219 on this airline. An additional option worth looking into is Delta, starting at $228. Users have found that United Airlines is 46% cheaper than the other options available to this destination.

  • Can I find deals for flights from Boise to Sioux Falls that include hotel bookings?

    Yes. In addition to deals on Boise to Sioux Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boise to Sioux Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Sioux Falls.

  • Can I find deals for business class flights from Boise to Sioux Falls?

    Yes. Cheapflights offers flight deals from Boise to Sioux Falls 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 Boise to Sioux Falls?

    Currently, September is the cheapest month in which you can book a flight from Boise to Sioux Falls (average of $334). Flying from Boise to Sioux Falls 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Boise to Sioux Falls

Discover the top 2 airlines that operate flights from Boise to Sioux Falls. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$219Average$448FlexibilityNo cancel feeOn-time69%
DeltaCheapest$228Average$348FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.