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Cheap flights from Idaho to Sioux City from $374

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho 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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Find the cheapest flights from Idaho to Sioux City

Cheap round-trip flights

Enter your travel dates to find the best prices.
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
$374United Airlines
Find Deal
vie., feb. 20 - mar., 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
$384United Airlines
Find Deal
vie., feb. 20 - mar., feb. 24
United Airlines Logo
5:10 pm - 5:41 pmBOI-SUX
23h 31m2 stops
United Airlines Logo
1:00 pm - 9:32 pmSUX-BOI
9h 32m2 stops
$458United Airlines
Find Deal
vie., feb. 20 - mar., feb. 24
United Airlines Logo
5:10 am - 6:08 pmGEG-SUX
10h 58m1 stop
United Airlines Logo
6:46 pm - 12:45 pmSUX-GEG
19h 59m1 stop
$867United Airlines
Find Deal
lun., nov. 24 - vie., nov. 28
United Airlines Logo
4:05 pm - 10:59 pmGEG-SUX
28h 54m2 stops
United Airlines Logo
6:46 pm - 12:45 pmSUX-GEG
19h 59m1 stop
$1,090United Airlines
Find Deal
lun., nov. 24 - vie., nov. 28
United Airlines Logo
1:47 pm - 10:59 pmGEG-SUX
31h 12m3 stops
United Airlines Logo
6:46 pm - 12:45 pmSUX-GEG
19h 59m1 stop
$1,099United Airlines
Find Deal
lun., nov. 24 - vie., nov. 28
United Airlines Logo
1:47 pm - 10:59 pmGEG-SUX
31h 12m3 stops
United Airlines Logo
6:46 pm - 10:42 amSUX-GEG
17h 56m2 stops
$2,584United Airlines
Find Deal
lun., nov. 24 - vie., nov. 28

United Airlines flights from Idaho to Sioux City

Our best United Airlines deals on Idaho 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
SUX6:30 pmSioux City Sioux Gateway
5h 53m
1 stop
BOI11:23 pmBoise Air Term. Gowen Fld
$374
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
SUX1:00 pmSioux City Sioux Gateway
11h 23m
2 stops
BOI11:23 pmBoise Air Term. Gowen Fld
$384
Find similar
United Airlines
Feb 20
BOI5:10 pmBoise Air Term. Gowen Fld
23h 31m
2 stops
SUX5:41 pmSioux City Sioux Gateway
Feb 24
SUX1:00 pmSioux City Sioux Gateway
9h 32m
2 stops
BOI9:32 pmBoise Air Term. Gowen Fld
$458
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Idaho 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 noviembre 10, 2025.
Use the filters below to find and compare flights from Idaho 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

vie. 2/20

5:00 am-10:45 am

1 stop4h 45m

Sioux City Sioux Gateway

mar. 2/24

6:30 pm-11:23 pm

1 stop5h 53m

$374

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

vie. 2/20

5:00 am-10:45 am

1 stop4h 45m

Sioux City Sioux Gateway

mar. 2/24

1:00 pm-11:23 pm

2 stops11h 23m

$384

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

vie. 2/20

5:10 pm-5:41 pm

2 stops23h 31m

Sioux City Sioux Gateway

mar. 2/24

1:00 pm-9:32 pm

2 stops9h 32m

$458

SpokaneSioux City

GEG - SUX

GEGSUX

Spokane

lun. 11/24

5:10 am-6:08 pm

1 stop10h 58m

Sioux City Sioux Gateway

vie. 11/28

6:46 pm-12:45 pm

1 stop19h 59m

$867

SpokaneSioux City

GEG - SUX

GEGSUX

Spokane

lun. 11/24

4:05 pm-10:59 pm

2 stops28h 54m

Sioux City Sioux Gateway

vie. 11/28

6:46 pm-12:45 pm

1 stop19h 59m

$1,090

SpokaneSioux City

GEG - SUX

GEGSUX

Spokane

lun. 11/24

1:47 pm-10:59 pm

3 stops31h 12m

Sioux City Sioux Gateway

vie. 11/28

6:46 pm-12:45 pm

1 stop19h 59m

$1,099

SpokaneSioux City

GEG - SUX

GEGSUX

Spokane

lun. 11/24

1:47 pm-10:59 pm

3 stops31h 12m

Sioux City Sioux Gateway

vie. 11/28

6:46 pm-10:42 am

2 stops17h 56m

$2,584

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Sioux City from

How to get the cheapest flight ticket from Idaho 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 Idaho according to our data. United Airlines is the first choice among our users, with 61% 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.

Cheap Idaho to Sioux City flight deals and tips

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

Direct flights

None
There are no direct flights from Idaho to Sioux City. There are no popular flight routes from Idaho to Sioux City.
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  • When did momondo last update prices for flights from Idaho to Sioux City Sioux Gateway Airport?

    Prices for flights from Idaho to Sioux City Sioux Gateway Airport refresh daily.

  • How many operators does momondo search for flights from Idaho to Sioux City Sioux Gateway Airport?

  • How old do you have to be to fly from Idaho to Sioux City Sioux Gateway Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho to Sioux City Sioux Gateway Airport.

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

    The required travel and health documents for your Sioux City Sioux Gateway Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sioux City Sioux Gateway Airport. We recommend that you seek guidance from your airline or a reliable 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 Idaho to Sioux City?

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

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

Yes. All flights to Sioux City from Idaho on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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

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

If you are not ready to book a flight from Idaho 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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