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Cheap flights from Boise to Sioux City from $374

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Sioux City departing on 8/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Boise to Sioux City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:00 am - 10:55 am
BOI
-
SUX
4h 55m
1 stop
United Airlines Logo
9:05 am - 10:40 pm
SUX
-
BOI
14h 35m
2 stops
$414United Airlines
Tue, Aug 18 - Sat, Aug 22
United Airlines Logo
5:00 am - 10:55 am
BOI
-
SUX
4h 55m
1 stop
United Airlines Logo
6:43 pm - 10:40 pm
SUX
-
BOI
4h 57m
1 stop
$429United Airlines
Wed, Aug 12 - Sun, Aug 16
United Airlines Logo
9:40 am - 6:11 pm
BOI
-
SUX
7h 31m
1 stop
United Airlines Logo
9:03 am - 9:16 pm
SUX
-
BOI
13h 13m
2 stops
$529United Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
5:00 am - 10:55 am
BOI
-
SUX
4h 55m
1 stop
United Airlines Logo
11:30 am - 5:58 pm
SUX
-
BOI
7h 28m
1 stop
$534United Airlines
Tue, Aug 18 - Sat, Aug 22
United Airlines Logo
9:40 am - 6:11 pm
BOI
-
SUX
7h 31m
1 stop
United Airlines Logo
6:46 pm - 9:43 am
SUX
-
BOI
15h 57m
1 stop
$572United Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
10:39 am - 6:11 pm
BOI
-
SUX
6h 32m
1 stop
United Airlines Logo
9:03 am - 9:16 pm
SUX
-
BOI
13h 13m
2 stops
$574United Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
9:40 am - 6:11 pm
BOI
-
SUX
7h 31m
1 stop
United Airlines Logo
6:46 pm - 9:43 am
SUX
-
BOI
15h 57m
1 stop
$577United Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
2:44 pm - 5:53 pm
BOI
-
SUX
26h 09m
2 stops
United Airlines Logo
9:05 am - 5:58 pm
SUX
-
BOI
9h 53m
2 stops
$586United Airlines
Tue, Aug 18 - Sat, Aug 22
United Airlines Logo
7:00 am - 6:11 pm
BOI
-
SUX
10h 11m
1 stop
United Airlines Logo
6:46 pm - 9:43 am
SUX
-
BOI
15h 57m
1 stop
$605United Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
5:00 am - 10:55 am
BOI
-
SUX
4h 55m
1 stop
United Airlines Logo
6:43 pm - 9:24 pm
SUX
-
BOI
27h 41m
2 stops
$617United Airlines
Wed, Aug 12 - Sun, Aug 16

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United Airlines flights from Boise to Sioux City

Our best United Airlines deals on Boise to Sioux City flight tickets
United Airlines
Aug 18
BOI5:00 amBoise Air Term. Gowen Fld
4h 55m
1 stop
SUX10:55 amSioux City Sioux Gateway
Aug 22
SUX9:05 amSioux City Sioux Gateway
14h 35m
2 stops
BOI10:40 pmBoise Air Term. Gowen Fld
$414
United Airlines
Aug 12
BOI5:00 amBoise Air Term. Gowen Fld
4h 55m
1 stop
SUX10:55 amSioux City Sioux Gateway
Aug 16
SUX6:43 pmSioux City Sioux Gateway
4h 57m
1 stop
BOI10:40 pmBoise Air Term. Gowen Fld
$429
United Airlines
Dec 2
BOI9:40 amBoise Air Term. Gowen Fld
7h 31m
1 stop
SUX6:11 pmSioux City Sioux Gateway
Dec 5
SUX9:03 amSioux City Sioux Gateway
13h 13m
2 stops
BOI9:16 pmBoise Air Term. Gowen Fld
$529

momondo Fare Finder

 
Customize your flight search to find flights from Boise to Sioux City 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, momondo users made 832,500 searches. Data last updated July 28, 2026.
Use the filters below to find and compare flights from Boise to Sioux City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Tue 8/18

5:00 am-10:55 am

1 stop4h 55m

Sioux City Sioux Gateway

Sat 8/22

9:05 am-10:40 pm

2 stops14h 35m

$414
Quickest round-trip

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Wed 8/12

5:00 am-10:55 am

1 stop4h 55m

Sioux City Sioux Gateway

Sun 8/16

6:43 pm-10:40 pm

1 stop4h 57m

$429

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Wed 12/2

9:40 am-6:11 pm

1 stop7h 31m

Sioux City Sioux Gateway

Sat 12/5

9:03 am-9:16 pm

2 stops13h 13m

$529

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Tue 8/18

5:00 am-10:55 am

1 stop4h 55m

Sioux City Sioux Gateway

Sat 8/22

11:30 am-5:58 pm

1 stop7h 28m

$534

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Wed 12/2

9:40 am-6:11 pm

1 stop7h 31m

Sioux City Sioux Gateway

Sat 12/5

6:46 pm-9:43 am

1 stop15h 57m

$572

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Wed 12/2

10:39 am-6:11 pm

1 stop6h 32m

Sioux City Sioux Gateway

Sat 12/5

9:03 am-9:16 pm

2 stops13h 13m

$574

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Wed 12/2

9:40 am-6:11 pm

1 stop7h 31m

Sioux City Sioux Gateway

Sat 12/5

6:46 pm-9:43 am

1 stop15h 57m

$577

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Tue 8/18

2:44 pm-5:53 pm

2 stops26h 09m

Sioux City Sioux Gateway

Sat 8/22

9:05 am-5:58 pm

2 stops9h 53m

$586

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Wed 12/2

7:00 am-6:11 pm

1 stop10h 11m

Sioux City Sioux Gateway

Sat 12/5

6:46 pm-9:43 am

1 stop15h 57m

$605

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Wed 8/12

5:00 am-10:55 am

1 stop4h 55m

Sioux City Sioux Gateway

Sun 8/16

6:43 pm-9:24 pm

2 stops27h 41m

$617

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Sioux City from

How to get the cheapest flight ticket from Boise to Sioux City

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Boise Air Term. Gowen Fld to Sioux City Sioux Gateway?

United Airlines is the most popular carrier operating from Boise Air Term. Gowen Fld to Sioux City Sioux Gateway

What airlines fly to Sioux City?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Sioux City from Boise according to our data. United Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Sioux City. Keep in mind that there are 3 different airlines that fly to Sioux City on a routine basis, so you have a few additional options to choose from.

When to book flights from Boise to Sioux City

Are you open to changing your travel dates? Check out the ideal times to fly from Boise to Sioux City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boise to Sioux City (BOI to SUX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boise to Sioux City

Fastest flight time

4h 55m

Direct flights

None
The fastest flight from Boise to Sioux City takes 4h 55m
There are no direct flights from Boise to Sioux City. There are no popular flight routes from Boise to Sioux City.
Search flight deals

Frequently asked questions about flying from Boise to Sioux City

  • How far is Boise Air Term. Gowen Fld to Sioux City Sioux Gateway by plane?

    Boise Air Term. Gowen Fld and Sioux City Sioux Gateway are 999.6 mi apart from one another. Flights usually cover this in 4h 55m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Sioux City Sioux Gateway Airport?

    Prices for flights from Boise Air Term. Gowen Fld Airport to Sioux City Sioux Gateway Airport are updated daily.

  • How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Sioux City Sioux Gateway Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport to Sioux City Sioux Gateway Airport.

  • What documentation or ID do you need to fly to Sioux City Sioux Gateway Airport?

    The necessary travel and health documents for your Sioux City Sioux Gateway Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Sioux City?

Book flights to Sioux City if you plan to visit one of these locations
Norfolk

Why use momondo?

Why should I use momondo to find a flight deal from Boise to Sioux City?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boise to Sioux City. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Boise to Sioux City with flexible booking policies on momondo?

All flight searches from Boise to Sioux City on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boise to Sioux City?

momondo provides multiple filters to help you find the best flight to Sioux City from Boise. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Boise to Sioux City right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boise to Sioux City now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sioux City and let you know when they change.

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