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

According to our current data, United Airlines ($255), American Airlines ($274), and Delta ($329) offers the cheapest pricing from Sioux Falls to Boise. These flights start at 38% lower than the current average price 3 months from now.

What is the cheapest day to fly from Sioux Falls to Boise?

Travelers seeking maximum savings on their Sioux Falls to Boise flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Boise 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 Boise when rainfall is around 0.2 in.

If weather is an important factor for your trip to Boise, 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).

What is the cheapest day to fly round-trip from Sioux Falls to Boise?

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from Sioux Falls to Boise?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, January can be a great choice for travel to Boise. Flights to Boise from Sioux Falls in January are about $414 on average during January, but can be found for as low as $278.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Sioux Falls to Boise by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$116+ Flights from Sioux Falls to Boise

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Cheap flight deals from Sioux Falls to Boise

Round-trip from	$255 (United Airlines)
One-way from	$116 (Mytrip)
Popular in	December
Cheapest in	January
Average price	$469

From Sioux Falls Joe Foss Field to Boise Air Term. Gowen Fld

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One-way flight from Sioux Falls Joe Foss Field to Boise Air Term. Gowen Fld

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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 July 2025

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Find flight deals from Sioux Falls to Boise

Cheapest flights from Sioux Falls to Boise
Explore the most affordable flight options available from Sioux Falls to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Mon 8/256:00 amFSD - BOI

1 stop4h 42mUnited Airlines

Sat 8/302:42 pmBOI - FSD

1 stop4h 47mUnited Airlines

Deal found 7/3

$255

Thu 9/111:21 pmFSD - BOI

1 stop9h 24mAmerican Airlines

Wed 9/176:35 amBOI - FSD

1 stop6h 11mAmerican Airlines

Deal found 7/2

$274

Thu 10/25:00 amFSD - BOI

2 stops8h 01mDelta

Sun 10/55:25 amBOI - FSD

1 stop7h 26mDelta

Deal found 7/1

$329

Best flights from Sioux Falls to Boise
Discover carefully curated flight deals from Sioux Falls to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Mon 8/256:00 amFSD - BOI

1 stop4h 42mUnited Airlines

Sat 8/302:42 pmBOI - FSD

1 stop4h 47mUnited Airlines

Deal found 7/3

$255

Thu 9/111:21 pmFSD - BOI

1 stop9h 24mAmerican Airlines

Wed 9/176:35 amBOI - FSD

1 stop6h 11mAmerican Airlines

Deal found 7/2

$274

Thu 10/25:00 amFSD - BOI

2 stops8h 01mDelta

Sun 10/55:25 amBOI - FSD

1 stop7h 26mDelta

Deal found 7/1

$329

Sat 7/194:37 pmFSD - BOI

3 stops27h 01mMultiple Airlines

Sun 8/35:56 pmBOI - FSD

2 stops25h 53mMultiple Airlines

Deal found 7/1

$653

Last-minute flights from Sioux Falls to Boise
Discover last-minute flight deals from Sioux Falls to Boise. Data last updated July 3, 2025 and is based on user searches.

Tue 7/86:00 amFSD - BOI

1 stop5h 50mDelta

Tue 7/295:40 amBOI - FSD

1 stop5h 41mDelta

Deal found 7/2

$374

Wed 7/96:21 amFSD - BOI

1 stop9h 20mAmerican Airlines

Mon 7/1411:44 amBOI - FSD

1 stop9h 17mAmerican Airlines

Deal found 7/1

$369

Wed 7/96:00 amFSD - BOI

1 stop4h 46mUnited Airlines

Mon 7/147:15 pmBOI - FSD

2 stops14h 35mUnited Airlines

Deal found 7/1

$444

Fri 7/185:11 pmFSD - BOI

1 stop7h 05mAmerican Airlines

Mon 7/2111:44 amBOI - FSD

1 stop9h 17mAmerican Airlines

Deal found 7/3

$314

Thu 8/76:16 pmFSD - BOI

1 stop6h 43mDelta

Sun 8/103:17 pmBOI - FSD

1 stop7h 27mDelta

Deal found 7/1

$333

Mon 8/256:00 amFSD - BOI

1 stop4h 42mUnited Airlines

Sat 8/302:42 pmBOI - FSD

1 stop4h 47mUnited Airlines

Deal found 7/3

$255

One-way flights from Sioux Falls to Boise
Search for one-way flight options from Sioux Falls to Boise. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Mon 8/1111:57 amFSD - BOI

1 stop7h 55mMultiple Airlines

Deal found 7/1

$116

Mon 8/116:06 amFSD - BOI

2 stops10h 49mUnited Airlines

Deal found 7/1

$276

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sioux Falls to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Mon 8/25

6:00 am-9:42 am

1 stop4h 42m

Boise Air Term. Gowen Fld

Sat 8/30

2:42 pm-8:29 pm

1 stop4h 47m

$255

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Thu 9/11

1:21 pm-9:45 pm

1 stop9h 24m

Boise Air Term. Gowen Fld

Wed 9/17

6:35 am-1:46 pm

1 stop6h 11m

$274

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Thu 10/2

5:00 am-12:01 pm

2 stops8h 01m

Boise Air Term. Gowen Fld

Sun 10/5

5:25 am-1:51 pm

1 stop7h 26m

$329

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Sat 7/19

4:37 pm-6:38 pm

3 stops27h 01m

Boise Air Term. Gowen Fld

Sun 8/3

5:56 pm-8:49 pm

2 stops25h 53m

$653

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Mon 8/11

11:57 am-6:52 pm

1 stop7h 55m

$116

Sioux FallsBoise

FSD - BOI

FSDBOI

Sioux Falls Joe Foss Field

Mon 8/11

6:06 am-3:55 pm

2 stops10h 49m

$276

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Sioux Falls to Boise

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

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

Currently, October is the cheapest month in which you can book a flight from Sioux Falls to Boise (average of $314). Flying from Sioux Falls to Boise in June is currently the most expensive (average of $398). 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 FSD to BOI?

It’s optimal to fly from Sioux Falls to Boise in the evening. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Boise

Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Sioux Falls to Boise. 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.

Delta

8.0

Very good

7,982 reviews

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

7,982 reviews

Delta

8.0

Very good

7,982 reviews

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

8,861 reviews

Delta

8.0

Very good

7,982 reviews

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!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,982 reviews

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

What are the cheapest airlines flying from Sioux Falls to Boise round-trip?
According to our current data, United Airlines ($255), American Airlines ($274), and Delta ($329) offers the cheapest pricing from Sioux Falls to Boise. These flights start at 38% lower than the current average price 3 months from now.
Can I find deals for flights from Sioux Falls to Boise that include hotel bookings?
Yes. In addition to deals on Sioux Falls to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sioux Falls to Boise?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to Boise.
Can I find deals for business class flights from Sioux Falls to Boise?
Yes. Cheapflights offers flight deals from Sioux Falls to Boise 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 Sioux Falls to Boise?
Currently, October is the cheapest month in which you can book a flight from Sioux Falls to Boise (average of $314). Flying from Sioux Falls to Boise in June is currently the most expensive (average of $398). 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

Meridian

Nampa

McCall

Ontario

Caldwell

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Other flights to Boise

Top 2 airlines flying from Sioux Falls to Boise

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$195	Average$308	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$286	Average$427	FlexibilityNo cancel fee	On-time69%

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$116+ Cheap flights from Sioux Falls to Boise (FSD - BOI)

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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sioux Falls to Boise with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Sioux Falls to Boise

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Sioux Falls to Boise

Cheapest flights from Sioux Falls to BoiseExplore the most affordable flight options available from Sioux Falls to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Sioux Falls to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sioux Falls to Boise that are best for you.

Best time to book a flight from Sioux Falls to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Sioux Falls with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to Boise

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

What is the cheapest time of day to fly from FSD to BOI?

Find hourly flight availability from Sioux Falls to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated July 3, 2025.

Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Sioux Falls to Boise. 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.

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to Boise. 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 flying from Sioux Falls to Boise round-trip?

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

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

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

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

Traveling to a place near Sioux Falls?

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Alternative routes for Sioux Falls to Boise

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Top 2 airlines flying from Sioux Falls to Boise

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Cheapest flights from Sioux Falls to Boise
Explore the most affordable flight options available from Sioux Falls to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.