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Cheap flights from Boise to Sioux City from $390

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Sioux City departing on 2/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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United Airlines Logo
5:00 am - 10:45 amBOI-SUX
4h 45m1 stop
United Airlines Logo
6:00 am - 10:12 amSUX-BOI
5h 12m1 stop
$390United Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
5:10 pm - 11:42 pmBOI-SUX
5h 32m1 stop
United Airlines Logo
1:00 pm - 11:23 pmSUX-BOI
11h 23m2 stops
$400United Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
5:00 am - 10:45 amBOI-SUX
4h 45m1 stop
United Airlines Logo
6:30 pm - 11:23 pmSUX-BOI
5h 53m1 stop
$404United Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
5:00 am - 10:45 amBOI-SUX
4h 45m1 stop
United Airlines Logo
1:00 pm - 11:23 pmSUX-BOI
11h 23m2 stops
$414United Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
5:00 am - 5:41 pmBOI-SUX
11h 41m2 stops
United Airlines Logo
1:00 pm - 9:32 pmSUX-BOI
9h 32m2 stops
$458United Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24

United Airlines flights from Boise to Sioux City

Our best United Airlines deals on Boise to Sioux City flight tickets
United Airlines
Feb 20
BOI5:00 amBoise Air Term. Gowen Fld
4h 45m
1 stop
SUX10:45 amSioux City Sioux Gateway
Feb 24
SUX6:00 amSioux City Sioux Gateway
5h 12m
1 stop
BOI10:12 amBoise Air Term. Gowen Fld
$390
Find similar
United Airlines
Feb 20
BOI5:10 pmBoise Air Term. Gowen Fld
5h 32m
1 stop
SUX11:42 pmSioux City Sioux Gateway
Feb 24
SUX1:00 pmSioux City Sioux Gateway
11h 23m
2 stops
BOI11:23 pmBoise Air Term. Gowen Fld
$400
Find similar
United Airlines
Feb 20
BOI5:00 amBoise Air Term. Gowen Fld
4h 45m
1 stop
SUX10:45 amSioux City Sioux Gateway
Feb 24
SUX6:30 pmSioux City Sioux Gateway
5h 53m
1 stop
BOI11:23 pmBoise Air Term. Gowen Fld
$404
Find similar

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 October 29, 2025.
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

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Fri 2/20

5:00 am-10:45 am

1 stop4h 45m

Sioux City Sioux Gateway

Tue 2/24

6:00 am-10:12 am

1 stop5h 12m

$390

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Fri 2/20

5:10 pm-11:42 pm

1 stop5h 32m

Sioux City Sioux Gateway

Tue 2/24

1:00 pm-11:23 pm

2 stops11h 23m

$400

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Fri 2/20

5:00 am-10:45 am

1 stop4h 45m

Sioux City Sioux Gateway

Tue 2/24

6:30 pm-11:23 pm

1 stop5h 53m

$404

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Fri 2/20

5:00 am-10:45 am

1 stop4h 45m

Sioux City Sioux Gateway

Tue 2/24

1:00 pm-11:23 pm

2 stops11h 23m

$414

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Fri 2/20

5:00 am-5:41 pm

2 stops11h 41m

Sioux City Sioux Gateway

Tue 2/24

1:00 pm-9:32 pm

2 stops9h 32m

$458

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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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 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 54% of people opting to fly with this airline when traveling to Sioux City. Keep in mind that there are 4 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

Direct flights

None
There are no direct flights from Boise to Sioux City. There are no popular flight routes from Boise to Sioux City.
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  • 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 45m, 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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