What airlines fly to United States?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to United States from Sioux City according to our data. United Airlines is the first choice among our users, with 28% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 7 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

How many flights depart from Sioux City to United States on average per week?

The number of flights available between Sioux City and United States is 21 per week as of January 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

What is the cheapest airline that flies from Sioux City Sioux Gateway to United States?

United Airlines is the most popular carrier operating from Sioux City Sioux Gateway to United States

How many flights depart from Sioux City to United States on average per day?

As of January 2026, 3 flights take off from Sioux City and land in United States each day. The most common flight departure time for this route is 6:00AM, with 50% of daily flights taking off at noon.

When did momondo last update prices for flights from Sioux City Sioux Gateway Airport to United States?

Prices for flights from Sioux City Sioux Gateway Airport to United States were last updated today.

How many operators does momondo search for flights from Sioux City Sioux Gateway Airport to United States?

The number of operators available for flights from Sioux City Sioux Gateway Airport to United States is 1 as of January 2026.

How old do you have to be to fly from Sioux City Sioux Gateway Airport to United States?

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 Sioux City Sioux Gateway Airport to United States.

What documentation or ID do you need to fly to United States?

The travel and health documents required for your trip to United States can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United States. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$150 Cheap Flights from Sioux City to the United States in 2026

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:53 pm - 2:40 pm

SUX

ORD

1h 47mnonstop

4:05 pm - 5:56 pm

ORD

SUX

1h 51mnonstop

$204United Airlines

Fri, Mar 27 - Mon, Mar 30

6:43 pm - 7:40 pm

SUX

DEN

1h 57mnonstop

8:05 am - 10:55 am

DEN

SUX

1h 50mnonstop

$214United Airlines

Fri, Feb 6 - Mon, Feb 9

1:00 pm - 2:47 pm

SUX

ORD

1h 47mnonstop

3:50 pm - 5:41 pm

ORD

SUX

1h 51mnonstop

$244United Airlines

Sat, Feb 14 - Tue, Feb 17

6:43 pm - 7:40 pm

SUX

DEN

1h 57mnonstop

8:05 am - 10:55 am

DEN

SUX

1h 50mnonstop

$254United Airlines

Sat, Feb 7 - Wed, Feb 11

12:55 pm - 5:27 pm

SUX

BNA

4h 32m1 stop

5:37 pm - 11:44 pm

BNA

SUX

6h 07m1 stop

$254United Airlines

Fri, Apr 17 - Mon, Apr 20

6:46 pm - 11:21 pm

SUX

DFW

4h 35m1 stop

5:55 pm - 11:42 pm

DFW

SUX

5h 47m1 stop

$254United Airlines

Fri, Feb 13 - Sun, Feb 15

6:00 am - 6:57 am

SUX

DEN

1h 57mnonstop

8:05 am - 10:55 am

DEN

SUX

1h 50mnonstop

$262United Airlines

Thu, Jan 29 - Sun, Feb 1

6:00 am - 9:56 am

SUX

PHX

4h 56m1 stop

5:36 pm - 11:42 pm

PHX

SUX

5h 06m1 stop

$264United Airlines

Tue, Feb 17 - Tue, Feb 24

12:45 pm - 2:40 pm

SUX

ORD

1h 55mnonstop

3:35 pm - 5:32 pm

ORD

SUX

1h 57mnonstop

$265United Airlines

Sat, Jun 27 - Wed, Aug 19

1:00 pm - 7:18 pm

SUX

PHX

7h 18m1 stop

6:40 am - 5:41 pm

PHX

SUX

10h 01m2 stops

$274United Airlines

Tue, Feb 17 - Tue, Feb 24

United Airlines flights from Sioux City to United States

Our best United Airlines deals on Sioux City to United States flight tickets

United Airlines

Mar 27

SUX12:53 pmSioux City Sioux Gateway

1h 47m

ORD2:40 pmChicago O'Hare Intl

Mar 30

ORD4:05 pmChicago O'Hare Intl

1h 51m

SUX5:56 pmSioux City Sioux Gateway

$204

United Airlines

Feb 6

SUX6:43 pmSioux City Sioux Gateway

1h 57m

DEN7:40 pmDenver Intl

Feb 9

DEN8:05 amDenver Intl

1h 50m

SUX10:55 amSioux City Sioux Gateway

$214

United Airlines

Feb 14

SUX1:00 pmSioux City Sioux Gateway

1h 47m

ORD2:47 pmChicago O'Hare Intl

Feb 17

ORD3:50 pmChicago O'Hare Intl

1h 51m

SUX5:41 pmSioux City Sioux Gateway

$244

momondo Fare Finder

Use the filters below to find and compare flights from Sioux City to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 3/27

12:53 pm-2:40 pm

Nonstop1h 47m

Chicago O'Hare Intl

Mon 3/30

4:05 pm-5:56 pm

Nonstop1h 51m

$204

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Fri 2/6

6:43 pm-7:40 pm

Nonstop1h 57m

Denver Intl

Mon 2/9

8:05 am-10:55 am

Nonstop1h 50m

$214

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 2/14

1:00 pm-2:47 pm

Nonstop1h 47m

Chicago O'Hare Intl

Tue 2/17

3:50 pm-5:41 pm

Nonstop1h 51m

$244

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 2/7

6:43 pm-7:40 pm

Nonstop1h 57m

Denver Intl

Wed 2/11

8:05 am-10:55 am

Nonstop1h 50m

$254

Sioux CityNashville

SUX - BNA

SUXBNA

Sioux City Sioux Gateway

Fri 4/17

12:55 pm-5:27 pm

1 stop4h 32m

Nashville Intl

Mon 4/20

5:37 pm-11:44 pm

1 stop6h 07m

$254

Sioux CityDallas

SUX - DFW

SUXDFW

Sioux City Sioux Gateway

Fri 2/13

6:46 pm-11:21 pm

1 stop4h 35m

Dallas/Fort Worth

Sun 2/15

5:55 pm-11:42 pm

1 stop5h 47m

$254

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Thu 1/29

6:00 am-6:57 am

Nonstop1h 57m

Denver Intl

Sun 2/1

8:05 am-10:55 am

Nonstop1h 50m

$262

Sioux CityPhoenix

SUX - PHX

SUXPHX

Sioux City Sioux Gateway

Tue 2/17

6:00 am-9:56 am

1 stop4h 56m

Phoenix Sky Harbor Intl

Tue 2/24

5:36 pm-11:42 pm

1 stop5h 06m

$264

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 6/27

12:45 pm-2:40 pm

Nonstop1h 55m

Chicago O'Hare Intl

Wed 8/19

3:35 pm-5:32 pm

Nonstop1h 57m

$265

Sioux CityPhoenix

SUX - PHX

SUXPHX

Sioux City Sioux Gateway

Tue 2/17

1:00 pm-7:18 pm

1 stop7h 18m

Phoenix Sky Harbor Intl

Tue 2/24

6:40 am-5:41 pm

2 stops10h 01m

$274

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Sioux City to United States

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

Prices

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Other information

What is the cheapest Sioux City Sioux Gateway to United States flight route?

Fly from Sioux City Sioux Gateway to Denver Intl for the best Sioux City Sioux Gateway - United States flight prices

What cabin class options are available on Sioux City Sioux Gateway to United States flights?

There are 2 cabin classes available to choose from on Sioux City Sioux Gateway to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Sioux City to United States flights?

You could potentially save up to 46% on your flight if you consider stops on a Sioux City to United States flight.

Cheap Sioux City to United States flight deals and tips

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

Best Price Found	$190
Fastest flight time	1h 45m
Direct flights	Mon, Wed, Thu, Fri, Sat and Sun
Airports in United States	4,296 airports

The best one-way flight to United States from Sioux City in the past 72 hours is $190. The best round-trip flight deal from Sioux City to United States found on momondo in the last 72 hours is $287.

The fastest flight from Sioux City to United States takes 1h 45m

Direct flights go from Sioux City to United States on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.

There are 4,296 airports in United States. From Sioux City there are direct flights to Chicago O'Hare Intl (ORD), Denver Intl (DEN).

Search flight deals

When did momondo last update prices for flights from Sioux City Sioux Gateway Airport to United States?
Prices for flights from Sioux City Sioux Gateway Airport to United States were last updated today.
How many operators does momondo search for flights from Sioux City Sioux Gateway Airport to United States?
The number of operators available for flights from Sioux City Sioux Gateway Airport to United States is 1 as of January 2026.
How old do you have to be to fly from Sioux City Sioux Gateway Airport to United States?
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 Sioux City Sioux Gateway Airport to United States.
What documentation or ID do you need to fly to United States?
The travel and health documents required for your trip to United States can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United States. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Sioux City to United States?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Sioux City to United States is Canadair (Bombardier) Regional Jet (38.57% of total bookings). The next most popular plane models are Airbus A320-100/200 (11.43%), Boeing 737-800 (8.57%), and Airbus A319 (7.14%).

Best airlines flying from Sioux City to United States

Compare and see reviews for airlines that fly from Sioux City to United States with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $205	Free Cancellation	Rating 7.4 9,143 reviews		Search United Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sioux City to United States for you.

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

momondo does allow users to show only those flights to United States from Sioux City which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Sioux City and United States by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to United States, momondo offers a useful price alert feature which will track prices for flights to United States from Sioux City and alert you when they change.

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Cheap flights from Sioux City to the United States from $150

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux City to the United States departing on 2/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

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Find the cheapest flights from Sioux City to the United States

Cheap round-trip flights

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United Airlines flights from Sioux City to United States

Our best United Airlines deals on Sioux City to United States flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Sioux City to the United States that are best for you.

See travel insights to the United States from

How to get the cheapest flight ticket from Sioux City to United States

What is the cheapest Sioux City Sioux Gateway to United States flight route?

Fly from Sioux City Sioux Gateway to Denver Intl for the best Sioux City Sioux Gateway - United States flight prices

What cabin class options are available on Sioux City Sioux Gateway to United States flights?

There are 2 cabin classes available to choose from on Sioux City Sioux Gateway to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Sioux City to United States flights?

You could potentially save up to 46% on your flight if you consider stops on a Sioux City to United States flight.

What is the cheapest airline that flies from Sioux City Sioux Gateway to United States?

United Airlines is the most popular carrier operating from Sioux City Sioux Gateway to United States

What airlines fly to United States?

How many flights depart from Sioux City to United States on average per day?

As of January 2026, 3 flights take off from Sioux City and land in United States each day. The most common flight departure time for this route is 6:00AM, with 50% of daily flights taking off at noon.

How many flights depart from Sioux City to United States on average per week?

The number of flights available between Sioux City and United States is 21 per week as of January 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

Cheap Sioux City to United States flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in United States

When did momondo last update prices for flights from Sioux City Sioux Gateway Airport to United States?

How many operators does momondo search for flights from Sioux City Sioux Gateway Airport to United States?

How old do you have to be to fly from Sioux City Sioux Gateway Airport to United States?

What documentation or ID do you need to fly to United States?

What is the most popular plane model from Sioux City to United States?

Best airlines flying from Sioux City to United States

Compare and see reviews for airlines that fly from Sioux City to United States with momondo

Why use momondo?

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

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

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

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

An easier way to manage your United States trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo