$100 Cheap Flights from Sioux Falls (FSD) to Boise (BOI)

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Find available prices by choosing your travel dates.

Cheap Flights from Sioux Falls to Boise (FSD-BOI)

Prices were available within the past 7 days and start at $100 for one-way flights and $199 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Jul 1 - Wed, Jul 2
FSD
Sioux Falls
BOI
Boise
$199 Roundtrip, found 3 days ago
$199
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Jul 1 from Sioux Falls to Boise, returning Wed, Jul 2, priced at $199 found 3 days ago
Frontier Airlines
Mon, May 19 - Thu, May 29
FSD
Sioux Falls
BOI
Boise
$208 Roundtrip, found 1 day ago
$208
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, May 19 from Sioux Falls to Boise, returning Thu, May 29, priced at $208 found 1 day ago
Delta
Sat, Jun 21 - Sat, Jul 5
FSD
Sioux Falls
BOI
Boise
$225 Roundtrip, found 2 hours ago
$225
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, Jun 21 from Sioux Falls to Boise, returning Sat, Jul 5, priced at $225 found 2 hours ago
Delta
Wed, May 28 - Wed, Jun 4
FSD
Sioux Falls
BOI
Boise
$228 Roundtrip, found 2 days ago
$228
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, May 28 from Sioux Falls to Boise, returning Wed, Jun 4, priced at $228 found 2 days ago
Delta
Tue, Jun 24 - Sat, Jul 5
FSD
Sioux Falls
BOI
Boise
$230 Roundtrip, found 2 hours ago
$230
Roundtrip
found 2 hours ago
Select Delta flight, departing Tue, Jun 24 from Sioux Falls to Boise, returning Sat, Jul 5, priced at $230 found 2 hours ago
Delta
Thu, Jun 19 - Sat, Jul 5
FSD
Sioux Falls
BOI
Boise
$244 Roundtrip, found 2 hours ago
$244
Roundtrip
found 2 hours ago
Select Delta flight, departing Thu, Jun 19 from Sioux Falls to Boise, returning Sat, Jul 5, priced at $244 found 2 hours ago
Delta
Tue, Jul 1 - Tue, Jul 22
FSD
Sioux Falls
BOI
Boise
$248 Roundtrip, found 3 days ago
$248
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Jul 1 from Sioux Falls to Boise, returning Tue, Jul 22, priced at $248 found 3 days ago
Frontier Airlines
Mon, May 19 - Thu, May 29
FSD
Sioux Falls
BOI
Boise
$248 Roundtrip, found 20 hours ago
$248
Roundtrip
found 20 hours ago
Select Frontier Airlines flight, departing Mon, May 19 from Sioux Falls to Boise, returning Thu, May 29, priced at $248 found 20 hours ago
United
Sat, Jul 12 - Wed, Jul 16
FSD
Sioux Falls
BOI
Boise
$251 Roundtrip, found 2 hours ago
$251
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Jul 12 from Sioux Falls to Boise, returning Wed, Jul 16, priced at $251 found 2 hours ago
American Airlines
Fri, Jun 6 - Mon, Jun 9
FSD
Sioux Falls
BOI
Boise
$259 Roundtrip, just found
$259
Roundtrip
just found
Select American Airlines flight, departing Fri, Jun 6 from Sioux Falls to Boise, returning Mon, Jun 9, priced at $259 just found
Flights from Sioux Falls (FSD) to Boise (BOI)
Origin airport
Sioux Falls Regional
Destination airport
Boise
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$198
Distance
973 mi

Sioux Falls to Boise Flights

The cheapest times to fly from Sioux Falls to Boise

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sioux Falls to Boise are during the month of July. You can find some of the cheapest flights from Sioux Falls to Boise with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sioux Falls to Boise

Sunday is one of the best days to book for cheap flights from Sioux Falls to Boise: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Sioux Falls to Boise

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sioux Falls to Boise in 2025. You can also book with separate airlines for your outbound and return journeys, from $100 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sioux Falls to Boise flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sioux Falls to Boise airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Sioux Falls Regional Airport (FSD) to Boise Airport (BOI) cost?
Discover the latest flight deals from FSD to BOI by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from FSD to BOI?
The cheapest flights from FSD to BOI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from FSD to BOI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from FSD to BOI. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Sioux Falls Regional Airport (FSD) to Boise Airport (BOI)?
Direct flights from Sioux Falls Regional Airport (FSD) to Boise Airport (BOI) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with Expedia’s filters. Enter your travel details and click on either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from FSD to BOI?
You’ll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sioux Falls Regional Airport (FSD) to Boise Airport (BOI)?
Opt for a flight from Sioux Falls Regional Airport (FSD) to Boise Airport (BOI) that takes off before 3 PM to reduce the risk of cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Sioux Falls Regional Airport (FSD) to Boise Airport (BOI) last-minute?
Booking your ticket from FSD to BOI right before your journey is usually more expensive. But if you’re flexible with your itinerary, you could score a cheap last-minute fare.
Is it cheaper to book a FSD to BOI flight and hotel package?
You can save money by securing a FSD to BOI flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one place. After selecting your preferred accommodations and flights, consider adding extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Sioux Falls Regional Airport (FSD) to Boise Airport (BOI)?
If you booked your FSD to BOI flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

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*Available to One Key members.