SUX

$153 Find Cheap Flights to Sioux City

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Sioux City departing on 4/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sioux City

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Sioux City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Sioux City, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$214
Overall average: $258
United Airlines
Mon 4/13Mon 4/20
DEN - SUX • Non-stop
Cheapest one-way
$153
United Airlines
Sat 4/4
DEN - SUX • Non-stop
Top routes
DEN
-
SUX
Cheapest
ORD
-
SUX
Most popular
Insights
Insights
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Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sioux City!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Sioux City

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Sioux City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals to Sioux City

Mon, Apr 13 - Mon, Apr 20
United Airlines Logo
8:05 am - 10:46 am
DEN
-
SUX
1h 41mnonstop
United Airlines Logo
6:00 am - 6:53 am
SUX
-
DEN
1h 53mnonstop
$214United Airlines
Sat, Aug 29 - Tue, Sep 1
United Airlines Logo
4:00 pm - 5:53 pm
ORD
-
SUX
1h 53mnonstop
United Airlines Logo
9:03 am - 10:57 am
SUX
-
ORD
1h 54mnonstop
$244United Airlines
Sun, Apr 12 - Mon, Apr 27
United Airlines Logo
8:05 am - 10:46 am
DEN
-
SUX
1h 41mnonstop
United Airlines Logo
6:00 am - 6:53 am
SUX
-
DEN
1h 53mnonstop
$254United Airlines
Fri, Jul 3 - Mon, Jul 6
United Airlines Logo
9:05 pm - 11:41 pm
DEN
-
SUX
1h 36mnonstop
United Airlines Logo
6:30 pm - 7:24 pm
SUX
-
DEN
1h 54mnonstop
$262United Airlines
Fri, Apr 3 - Sun, Apr 5
United Airlines Logo
4:05 pm - 5:56 pm
ORD
-
SUX
1h 51mnonstop
United Airlines Logo
12:55 pm - 2:40 pm
SUX
-
ORD
1h 45mnonstop
$265United Airlines
Thu, Apr 30 - Sun, May 3
United Airlines Logo
8:00 am - 10:41 am
DEN
-
SUX
1h 41mnonstop
United Airlines Logo
6:42 pm - 7:35 pm
SUX
-
DEN
1h 53mnonstop
$302United Airlines
Tue, May 26 - Fri, May 29
United Airlines Logo
8:15 am - 10:57 am
DEN
-
SUX
1h 42mnonstop
United Airlines Logo
6:30 pm - 7:24 pm
SUX
-
DEN
1h 54mnonstop
$310United Airlines
Tue, Aug 11 - Tue, Aug 18
United Airlines Logo
5:35 am - 10:55 am
AUS
-
SUX
5h 20m
1 stop
United Airlines Logo
11:32 am - 4:58 pm
SUX
-
AUS
5h 26m
1 stop
$314United Airlines
Tue, Aug 11 - Tue, Aug 18
United Airlines Logo
5:35 am - 10:55 am
AUS
-
SUX
5h 20m
1 stop
United Airlines Logo
11:32 am - 9:06 pm
SUX
-
AUS
9h 34m
2 stops
$324United Airlines
Sat, Aug 15 - Sat, Aug 22
United Airlines Logo
4:10 pm - 11:46 pm
AUS
-
SUX
7h 36m
2 stops
United Airlines Logo
11:32 am - 11:13 pm
SUX
-
AUS
11h 41m
2 stops
$329United Airlines
Booking Insights

KAYAK's insights & trends for flights to Sioux City

Get data-powered insights and trends for flights to Sioux City to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Sioux City?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Sioux City was found on the route from Denver, at $214 return. The most popular connection is from Chicago to Sioux City and KAYAK users have found round-trip deals for as low as $244 in the last 3 days.

What is the cheapest day to fly to Sioux City?

The average price of all round-trip flights to Sioux City clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Sioux City is Saturday where round-trip tickets can be as cheap as $214. On the other hand, the most expensive day to fly is Tuesday, where round-trip prices are $460 on average.

Find deals

Good to know - Book Cheap Sioux City Plane Tickets

Low seasonAugust
Cheapest flight$153
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Denver to Sioux City

When to book flights to Sioux City

Are your dates flexible? Find out the best times to travel to Sioux City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. The information is for flights to Sioux City based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Sioux City flights

  • What is the cheapest flight to Sioux City?

    In the last 3 days, the cheapest flight deal to Sioux City was found on the route from Denver, at $214 return. The most popular connection is from Chicago to Sioux City and KAYAK users have found round-trip deals for as low as $244 in the last 3 days.

  • How far is Sioux City Sioux Gateway Airport from central Sioux City?

    There are 7 miles between Sioux City city center and Sioux City Sioux Gateway Airport.

  • What is the name of Sioux City’s airport?

    Sioux City is served by Sioux City Sioux Gateway Airport, also commonly referred to as Sioux Gateway. The airport code is SUX.

  • How much is a flight to Sioux City?

    On average, a flight to Sioux City costs $254. The cheapest price found on KAYAK in the last 2 weeks cost $214 and departed from Denver Intl Airport.

  • How does KAYAK find such low prices on flights to Sioux City?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Sioux City.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Sioux City?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux City is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Sioux City?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sioux City with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Sioux City?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sioux City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Sioux City

  • Looking for cheap airfare to Sioux City? 25% of our users found round-trip tickets to Sioux City for the following prices or less: From Denver $214
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Sioux City flight deals.

Reviews of the top airline flying to Sioux City

 
See real verified KAYAK customer reviews for airlines flying to Sioux City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United States to Sioux City. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Sioux City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9439 reviews
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

Economy plus was so cramped I could not use my laptop. It was beyond bad.

4.0 OkayBryan, Mar 2026
MCO - ORD
Read more United Airlines reviews

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Everything you need to know for your flight to Sioux City

Information on the airport you'll fly into in Sioux City

Sioux City (SUX)