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$158 Find Cheap Flights from Sioux City to Colorado

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux City to Colorado departing on 5/20. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux City to Colorado, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux City to Colorado, as well as popular online travel agencies
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Best Colorado Flight Deals from Sioux City

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Denver
Denvernonstop$360

Cheap Flight Deals from Sioux City to Colorado (SUX-USCO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux City to Colorado 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.

Recent round-trip flight deals from Sioux City to Colorado

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Sioux City to Colorado.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
United Airlines Logo
6:53 pm - 7:36 pmSUX-DEN
1h 43mnonstop
United Airlines Logo
3:40 pm - 6:18 pmDEN-SUX
1h 38mnonstop
$360United Airlines
Find Deal
Thu, Jul 3 - Sun, Jul 6
United Airlines Logo
6:48 pm - 7:35 pmSUX-DEN
1h 47mnonstop
United Airlines Logo
3:40 pm - 6:13 pmDEN-SUX
1h 33mnonstop
$410United Airlines
Find Deal
Fri, Sep 5 - Sun, Sep 7
United Airlines Logo
6:35 pm - 7:20 pmSUX-DEN
1h 45mnonstop
United Airlines Logo
5:40 pm - 10:40 pmDEN-SUX
28h 00m2 stops
$412United Airlines
Find Deal
Fri, Jun 13 - Sun, Jun 15
United Airlines Logo
6:35 pm - 7:20 pmSUX-DEN
1h 45mnonstop
United Airlines Logo
8:50 pm - 10:40 pmDEN-SUX
24h 50m1 stop
$417United Airlines
Find Deal
Fri, Jun 13 - Sun, Jun 15
United Airlines Logo
10:10 am - 8:58 amSUX-DEN
23h 48m1 stop
United Airlines Logo
3:40 pm - 6:18 pmDEN-SUX
1h 38mnonstop
$422United Airlines
Find Deal
Thu, Jul 3 - Sun, Jul 6
United Airlines Logo
3:26 pm - 4:12 pmSUX-DEN
1h 46mnonstop
United Airlines Logo
11:53 am - 2:28 pmDEN-SUX
1h 35mnonstop
$434United Airlines
Find Deal
Wed, May 7 - Sun, May 11
United Airlines Logo
6:48 pm - 7:35 pmSUX-DEN
1h 47mnonstop
United Airlines Logo
6:00 am - 10:57 pmDEN-SUX
15h 57m1 stop
$460United Airlines
Find Deal
Fri, Sep 5 - Sun, Sep 7
United Airlines Logo
6:35 pm - 7:20 pmSUX-DEN
1h 45mnonstop
United Airlines Logo
2:35 pm - 5:15 pmDEN-SUX
1h 40mnonstop
$462United Airlines
Find Deal
Fri, Jun 13 - Sun, Jun 15
United Airlines Logo
3:26 pm - 4:12 pmSUX-DEN
1h 46mnonstop
United Airlines Logo
7:45 am - 10:30 pmDEN-SUX
13h 45m2 stops
$470United Airlines
Find Deal
Wed, May 7 - Sun, May 11
United Airlines Logo
10:10 am - 8:53 amSUX-DEN
23h 43m2 stops
United Airlines Logo
3:40 pm - 6:18 pmDEN-SUX
1h 38mnonstop
$471United Airlines
Find Deal
Thu, Jul 3 - Sun, Jul 6

KAYAK's insights & trends for Sioux City to Colorado flights

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

What is the cheapest Sioux City to Colorado flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Sioux City to Colorado.
The cheapest ticket to Colorado from Sioux City found in the last 72 hours was to Denver, at $205 round-trip. The most popular route is from Sioux City (SUX) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $205.

What is the cheapest time of day to fly to Colorado?

The average price for all round-trip flights from Sioux City to Colorado depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $389 on average. Morning departures are around 1% more expensive than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $564.

Can I save money by flying with a layover from Sioux City to Colorado?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of $342, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Sioux City to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sioux City to Colorado, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Sioux City to Colorado is March, when tickets cost $214 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $325 and $319 respectively.

What’s the cheapest day of the week to fly from Sioux City to Colorado?

The average price of all round-trip flights from Sioux City to Colorado clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Colorado on a Saturday and more expensive on a Sunday. On your return trip to Sioux City, you should consider flying back on a Saturday, and avoid Mondays for better deals.
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Good to know

Low season

January

High season

July

Cheapest flight

$158
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 22% increase in price.
Flight from Sioux City to Denver

FAQs - booking Colorado flights

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

    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 from Sioux City to Colorado.

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

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

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

    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 from Sioux City to Colorado 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 from Sioux City to Colorado?

    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 from Sioux City to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Colorado

  • Looking for a cheap flight? 25% of our users found tickets from Sioux City to the following destinations at these prices or less: Denver $109 one-way - $382 round-trip

Top airline flying from Sioux City to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Sioux City to Colorado. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sioux City to Colorado? 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 8683 reviews
7.3Comfort
7.1Entertainment
7.7Boarding
6.6Food
8.1Crew
Airline reviews

The gate attendant let me walk right by her with a bag too big for the overhead compartment

10.0 ExcellentMarni, Apr 2025DEN - DRO
Read more United Airlines reviews

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

Everything you need to know for your flight from Sioux City to Colorado

Information on your arrival and departure airports

Sioux City (SUX)

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