$309+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FSD
Sep 28 — Oct 51
Round-trip
1 adult, Economy
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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
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Best
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Cheapest flights from Boise to Sioux FallsExplore 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 29, 2026.
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 29, 2026.
This American Airlines deal was found by Cheapflights users on 8/24. 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 10/72:02 pm -
1 stop8h 54m
Wed 10/148:05 am -
1 stop6h 17m
Deal found 8/24![American Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/185:40 pm -
1 stop5h 04m
Wed 9/236:00 am -
2 stops10h 31m
Deal found 8/27![United Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 8/26. 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 10/162:02 pm -
1 stop8h 54m
Sat 10/248:05 am -
1 stop6h 17m
Deal found 8/26![American Airlines logo]()
$354
This Delta deal was found by Cheapflights users on 8/27. 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 9/242:50 pm -
1 stop7h 01m
Sat 10/310:40 am -
2 stops9h 13m
Deal found 8/27![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/25. 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 10/172:35 pm -
2 stops8h 09m
Sat 10/241:46 pm -
2 stops8h 53m
Deal found 8/25![United Airlines logo]()
$366
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Sat 9/126:30 am -
1 stop6h 09m
Wed 9/162:10 pm -
1 stop8h 53m
Deal found 8/28![American Airlines logo]()
$377
This United Airlines deal was found by Cheapflights users on 8/24. 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 10/165:30 pm -
1 stop5h 14m
Sun 10/186:00 am -
1 stop4h 34m
Deal found 8/24![United Airlines logo]()
$380
This United Airlines deal was found by Cheapflights users on 8/28. 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 9/1210:36 am -
2 stops11h 36m
Wed 9/169:35 am -
1 stop5h 00m
Deal found 8/28![United Airlines logo]()
$382
This United Airlines deal was found by Cheapflights users on 8/24. 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 10/72:44 pm -
1 stop4h 36m
Wed 10/146:00 am -
2 stops8h 03m
Deal found 8/24![United Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Fri 9/252:50 pm -
2 stops19h 48m
Sun 9/2710:02 pm -
1 stop16h 53m
Deal found 8/25![Multiple Airlines logo]()
$401
This United Airlines deal was found by Cheapflights users on 8/26. 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 9/105:40 pm -
1 stop5h 04m
Mon 9/146:50 pm -
1 stop4h 50m
Deal found 8/26![United Airlines logo]()
$402
Best flights from Boise to Sioux FallsDiscover carefully curated flight deals from Boise to Sioux Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 29, 2026.
Discover carefully curated flight deals from Boise to Sioux Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 29, 2026.
This United Airlines deal was found by Cheapflights users on 8/25. 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 10/172:44 pm -
1 stop4h 56m
Sat 10/249:42 am -
1 stop4h 56m
Deal found 8/25![United Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 8/29. 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.
Thu 10/155:58 pm -
2 stops16h 40m
Sun 10/1812:26 pm -
1 stop26h 29m
Deal found 8/29![Multiple Airlines logo]()
$518
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/185:40 pm -
1 stop5h 04m
Wed 9/236:00 am -
2 stops10h 31m
Deal found 8/27![United Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/24. 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 10/165:30 pm -
1 stop5h 14m
Sun 10/186:00 am -
1 stop4h 34m
Deal found 8/24![United Airlines logo]()
$380
This United Airlines deal was found by Cheapflights users on 8/27. 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 10/172:44 pm -
1 stop4h 56m
Tue 10/206:00 am -
2 stops7h 58m
Deal found 8/27![United Airlines logo]()
$465
Last-minute flights from Boise to Sioux FallsDiscover last-minute flight deals from Boise to Sioux Falls. Data last updated August 29, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Sioux Falls. Data last updated August 29, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/45:44 pm -
1 stop5h 00m
Wed 9/95:05 pm -
1 stop5h 40m
Deal found 8/27![United Airlines logo]()
$455
This Delta deal was found by Cheapflights users on 8/25. 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 9/52:53 pm -
1 stop6h 58m
Mon 9/78:22 am -
1 stop6h 20m
Deal found 8/25![Delta logo]()
$422
This United Airlines deal was found by Cheapflights users on 8/26. 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 9/105:40 pm -
1 stop5h 04m
Mon 9/146:50 pm -
1 stop4h 50m
Deal found 8/26![United Airlines logo]()
$402
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Sat 9/126:30 am -
1 stop6h 09m
Wed 9/162:10 pm -
1 stop8h 53m
Deal found 8/28![American Airlines logo]()
$377
This United Airlines deal was found by Cheapflights users on 8/28. 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 9/1210:36 am -
2 stops11h 36m
Wed 9/169:35 am -
1 stop5h 00m
Deal found 8/28![United Airlines logo]()
$382
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/185:40 pm -
1 stop5h 04m
Wed 9/236:00 am -
2 stops10h 31m
Deal found 8/27![United Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 8/27. 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 9/242:50 pm -
1 stop7h 01m
Sat 10/310:40 am -
2 stops9h 13m
Deal found 8/27![Delta logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Fri 9/252:50 pm -
2 stops19h 48m
Sun 9/2710:02 pm -
1 stop16h 53m
Deal found 8/25![Multiple Airlines logo]()
$401
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/252:44 pm -
1 stop4h 36m
Sun 9/276:00 am -
1 stop4h 34m
Deal found 8/25![United Airlines logo]()
$443
One-way flights from Boise to Sioux FallsSearch for one-way flight options from Boise to Sioux Falls. Find affordable one-way fares based on user searches. Data last updated August 29, 2026.
Search for one-way flight options from Boise to Sioux Falls. Find affordable one-way fares based on user searches. Data last updated August 29, 2026.
This United Airlines deal was found by Cheapflights users on 8/26. 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 9/215:00 am -
1 stop4h 44m
Deal found 8/26![United Airlines logo]()
$309
This American Airlines deal was found by Cheapflights users on 8/26. 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 9/253:21 pm -
1 stop8h 08m
Deal found 8/26![American Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 8/26. 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 9/258:15 am -
2 stops11h 05m
Deal found 8/26![United Airlines logo]()
$689
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Fri 9/257:48 pm -
3 stops48h 24m
Deal found 8/26![Multiple Airlines logo]()
$854
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/216:23 am -
3 stops15h 28m
Deal found 8/26![Multiple Airlines logo]()
$874
Find 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 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $329 (American Airlines) |
One-way from | $309 (United Airlines) |
Popular in | June |
Cheapest in | March |
Average price | $443 |
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 7,457,451 searches. Data last updated August 29, 2026.
Use the filters below to find and compare flights from Boise to Sioux Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Sat 10/17
2:44 pm-8:40 pm
1 stop4h 56m
Sioux Falls Joe Foss Field
Sat 10/24
9:42 am-1:38 pm
1 stop4h 56m
$329
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Fri 9/18
5:40 pm-11:44 pm
1 stop5h 04m
Sioux Falls Joe Foss Field
Wed 9/23
6:00 am-3:31 pm
2 stops10h 31m
$334
Quickest round-trip
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Fri 10/16
5:30 pm-11:44 pm
1 stop5h 14m
Sioux Falls Joe Foss Field
Sun 10/18
6:00 am-9:34 am
1 stop4h 34m
$380
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Sat 10/17
2:44 pm-8:40 pm
1 stop4h 56m
Sioux Falls Joe Foss Field
Tue 10/20
6:00 am-12:58 pm
2 stops7h 58m
$465
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Thu 10/15
5:58 pm-11:38 am
2 stops16h 40m
Sioux Falls Joe Foss Field
Sun 10/18
12:26 pm-1:55 pm
1 stop26h 29m
$518
Cheapest one-way
Quickest one-way
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Mon 9/21
5:00 am-10:44 am
1 stop4h 44m
$309
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Fri 9/25
3:21 pm-12:29 am
1 stop8h 08m
$340
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Fri 9/25
8:15 am-8:20 pm
2 stops11h 05m
$689
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Fri 9/25
7:48 pm-9:12 pm
3 stops48h 24m
$854
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Mon 9/21
6:23 am-10:51 pm
3 stops15h 28m
$874
Sorted by cheapest first
Compare providers for flights from Boise to Sioux Falls
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Sioux Falls in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boise-Sioux Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Sioux Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Sioux Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boise-Sioux Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Sioux Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
BOI-FSD
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, March is the cheapest month in which you can book a flight from Boise to Sioux Falls (average of $381). Flying from Boise to Sioux Falls in June is currently the most expensive (average of $668). 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.
How much does it cost to fly round-trip from Boise to Sioux Falls?
Airfare is below average for this route at the moment.
Boise to Sioux Falls flights typically cost between $368 and $394 in October.The cheapest round-trip price found within the last 5 days was $329 on American Airlines (Oct 7-Oct 14).
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 29, 2026.
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.
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
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.
Traveling to a place near Sioux Falls?
Book flights to Sioux Falls if you plan to visit one of these locationsMarshall
Yankton
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Boise and Sioux Falls flights
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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 7,457,451 searches. Data last updated August 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$284 | Average$478 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$309 | Average$408 | FlexibilityNo cancel fee | On-timeN/A |