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

1 flights are operational daily from Colorado to Sioux City as of September 2026. The most popular departure time for this route is 9:00PM, with 100% of flights per day taking off in the evening.

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

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

How long does it take to fly to Sioux City?

Flight times from Colorado to Sioux City vary, but if you’re flying out of Denver and flying into Omaha (one of the most popular routes), then the duration is 1h 29m on average. Another popular route from Colorado to Sioux City is flying from Colorado Springs to Omaha, which will take roughly 3h 40m. Keep in mind that layovers or delays could extend your travel time.

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

As of September 2026, 7 flights take off from Colorado and land in Sioux City each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

What airlines fly to Sioux City?

United Airlines, Frontier and Southwest are the top three most popular airlines that fly to Sioux City from Colorado according to our data. United Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Sioux City. Keep in mind that there are 3 different airlines that fly to Sioux City on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Colorado to Sioux City Sioux Gateway Airport are refreshed on a daily basis.

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

As of September 2026, there is 1 operator available to choose from for flights from Colorado to Sioux City Sioux Gateway Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado 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.

$163 Cheap Flights from Colorado to Sioux City in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Sioux City

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:05 pm - 11:43 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

1h 38mnonstop

6:45 pm - 7:41 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 56mnonstop

$234United Airlines

Tue, Oct 20 - Tue, Oct 27

9:05 pm - 11:43 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

1h 38mnonstop

6:58 pm - 7:52 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 54mnonstop

$274United Airlines

Thu, Oct 15 - Mon, Oct 19

9:05 pm - 11:43 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

1h 38mnonstop

6:58 pm - 7:52 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 54mnonstop

$282United Airlines

Fri, Oct 9 - Mon, Oct 12

9:05 pm - 11:43 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

1h 38mnonstop

6:58 pm - 7:52 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 54mnonstop

$314United Airlines

Thu, Oct 15 - Mon, Oct 19

9:05 pm - 11:43 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

1h 38mnonstop

6:45 pm - 7:41 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 56mnonstop

$322United Airlines

Fri, Nov 13 - Sun, Nov 15

9:05 pm - 11:43 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

1h 38mnonstop

6:58 pm - 7:52 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 54mnonstop

$330United Airlines

Wed, Oct 7 - Sun, Oct 11

9:05 pm - 11:43 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

1h 38mnonstop

6:58 pm - 7:52 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 54mnonstop

$330United Airlines

Tue, Oct 6 - Thu, Oct 8

6:03 pm - 11:43 pmCOS Colorado Springs-SUX Sioux City Sioux Gateway

4h 40m1 stop Denver Intl

6:45 pm - 11:59 pmSUX Sioux City Sioux Gateway-COS Colorado Springs

6h 14m1 stop Denver Intl

$349United Airlines

Thu, Oct 22 - Thu, Oct 29

5:05 pm - 11:43 pmCOS Colorado Springs-SUX Sioux City Sioux Gateway

5h 38m1 stop Denver Intl

6:00 am - 11:15 amSUX Sioux City Sioux Gateway-COS Colorado Springs

6h 15m1 stop Chicago O'Hare Intl

$424United Airlines

Tue, Nov 10 - Sat, Nov 14

5:05 pm - 11:43 pmCOS Colorado Springs-SUX Sioux City Sioux Gateway

5h 38m1 stop Denver Intl

6:45 pm - 10:03 pmSUX Sioux City Sioux Gateway-COS Colorado Springs

4h 18m1 stop Denver Intl

$424United Airlines

Tue, Nov 10 - Sat, Nov 14

Cheap last minute flights

Enter your travel dates to find the best prices.

9:05 pm - 11:43 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

1h 38mnonstop

6:45 pm - 7:41 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 56mnonstop

$382United Airlines

Sat, Sep 26 - Sat, Oct 31

9:05 pm - 11:43 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

1h 38mnonstop

6:58 pm - 7:52 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 54mnonstop

$520United Airlines

Wed, Sep 30 - Sun, Oct 4

9:05 pm - 11:43 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

1h 38mnonstop

6:58 pm - 7:52 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 54mnonstop

$570United Airlines

Tue, Sep 29 - Wed, Sep 30

9:05 pm - 11:43 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

1h 38mnonstop

6:00 am - 2:50 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

9h 50m1 stop Chicago O'Hare Intl

$599United Airlines

Sat, Sep 26 - Sat, Oct 31

9:05 pm - 11:43 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

1h 38mnonstop

6:00 am - 4:22 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

11h 22m2 stops Chicago O'Hare Intl Milwaukee-Mitchell

$720United Airlines

Sat, Sep 26 - Sat, Oct 31

9:01 pm - 5:53 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

19h 52m2 stops Minneapolis St Paul Chicago O'Hare Intl

6:58 pm - 7:52 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 54mnonstop

$745United Airlines

Wed, Sep 30 - Sun, Oct 4

1:25 pm - 5:53 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

27h 28m1 stop Chicago O'Hare Intl

6:58 pm - 7:52 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 54mnonstop

$783United Airlines

Wed, Sep 30 - Sun, Oct 4

7:45 am - 5:53 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

9h 08m1 stop Chicago O'Hare Intl

6:58 pm - 7:52 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 54mnonstop

$901United Airlines

Tue, Sep 29 - Wed, Sep 30

7:50 am - 5:53 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

9h 03m2 stops Minneapolis St Paul Chicago O'Hare Intl

6:58 pm - 7:52 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 54mnonstop

$1,002United Airlines

Tue, Sep 29 - Wed, Sep 30

11:15 am - 5:53 pmDEN Denver Intl-SUX Sioux City Sioux Gateway

5h 38m1 stop Chicago O'Hare Intl

6:58 pm - 7:52 pmSUX Sioux City Sioux Gateway-DEN Denver Intl

1h 54mnonstop

$1,250United Airlines

Mon, Sep 28 - Mon, Sep 28

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United Airlines flights from Colorado to Sioux City

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

United Airlines

Oct 20

DEN9:05 pmDenver Intl

1h 38m

SUX11:43 pmSioux City Sioux Gateway

Oct 27

SUX6:45 pmSioux City Sioux Gateway

1h 56m

DEN7:41 pmDenver Intl

$234

United Airlines

Oct 15

DEN9:05 pmDenver Intl

1h 38m

SUX11:43 pmSioux City Sioux Gateway

Oct 19

SUX6:58 pmSioux City Sioux Gateway

1h 54m

DEN7:52 pmDenver Intl

$274

United Airlines

Oct 9

DEN9:05 pmDenver Intl

1h 38m

SUX11:43 pmSioux City Sioux Gateway

Oct 12

SUX6:58 pmSioux City Sioux Gateway

1h 54m

DEN7:52 pmDenver Intl

$282

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSioux City

DEN Denver Intl - SUX Sioux City Sioux Gateway

DENSUX

Denver Intl

Tue 10/20

9:05 pm-11:43 pm

Nonstop1h 38m

Sioux City Sioux Gateway

Tue 10/27

6:45 pm-7:41 pm

Nonstop1h 56m

$234

Quickest round-trip

DenverSioux City

DEN Denver Intl - SUX Sioux City Sioux Gateway

DENSUX

Denver Intl

Thu 10/15

9:05 pm-11:43 pm

Nonstop1h 38m

Sioux City Sioux Gateway

Mon 10/19

6:58 pm-7:52 pm

Nonstop1h 54m

$274

DenverSioux City

DEN Denver Intl - SUX Sioux City Sioux Gateway

DENSUX

Denver Intl

Fri 10/9

9:05 pm-11:43 pm

Nonstop1h 38m

Sioux City Sioux Gateway

Mon 10/12

6:58 pm-7:52 pm

Nonstop1h 54m

$282

DenverSioux City

DEN Denver Intl - SUX Sioux City Sioux Gateway

DENSUX

Denver Intl

Thu 10/15

9:05 pm-11:43 pm

Nonstop1h 38m

Sioux City Sioux Gateway

Mon 10/19

6:58 pm-7:52 pm

Nonstop1h 54m

$314

DenverSioux City

DEN Denver Intl - SUX Sioux City Sioux Gateway

DENSUX

Denver Intl

Fri 11/13

9:05 pm-11:43 pm

Nonstop1h 38m

Sioux City Sioux Gateway

Sun 11/15

6:45 pm-7:41 pm

Nonstop1h 56m

$322

DenverSioux City

DEN Denver Intl - SUX Sioux City Sioux Gateway

DENSUX

Denver Intl

Wed 10/7

9:05 pm-11:43 pm

Nonstop1h 38m

Sioux City Sioux Gateway

Sun 10/11

6:58 pm-7:52 pm

Nonstop1h 54m

$330

DenverSioux City

DEN Denver Intl - SUX Sioux City Sioux Gateway

DENSUX

Denver Intl

Tue 10/6

9:05 pm-11:43 pm

Nonstop1h 38m

Sioux City Sioux Gateway

Thu 10/8

6:58 pm-7:52 pm

Nonstop1h 54m

$330

Colorado SpringsSioux City

COS Colorado Springs - SUX Sioux City Sioux Gateway

COSSUX

Colorado Springs

Thu 10/22

6:03 pm-11:43 pm

1 stop4h 40m

Sioux City Sioux Gateway

Thu 10/29

6:45 pm-11:59 pm

1 stop6h 14m

$349

Colorado SpringsSioux City

COS Colorado Springs - SUX Sioux City Sioux Gateway

COSSUX

Colorado Springs

Tue 11/10

5:05 pm-11:43 pm

1 stop5h 38m

Sioux City Sioux Gateway

Sat 11/14

6:00 am-11:15 am

1 stop6h 15m

$424

Colorado SpringsSioux City

COS Colorado Springs - SUX Sioux City Sioux Gateway

COSSUX

Colorado Springs

Tue 11/10

5:05 pm-11:43 pm

1 stop5h 38m

Sioux City Sioux Gateway

Sat 11/14

6:45 pm-10:03 pm

1 stop4h 18m

$424

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado 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

Prices

Airlines

Other information

What is the cheapest month to fly to Sioux City?

The cheapest month to fly to Sioux City from Colorado is in November. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. The month of July is another great option to travel to Sioux City, with average flight prices from Colorado averaging around $234.

What is the cheapest day to depart on your flight to Sioux City?

On average, the least expensive day to fly to Sioux City from Colorado is on a Saturday. momondo users have found tickets for Saturday departures for as low as $234. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Colorado because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $433.

What is the cheapest time of day to depart on your flight to Sioux City?

The cheapest time of day to fly to Sioux City is in the evening when flights can be purchased for as low as $254. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $360 on average. Flights to Sioux City from Colorado in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Colorado to Sioux City Sioux Gateway flight route?

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

What cabin class options are available on Colorado to Sioux City flights?

There is only 1 cabin class available to choose from on Colorado to Sioux City 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 Colorado to Sioux City flights?

You could potentially save up to 58% on your flight if you consider stops on a Colorado to Sioux City flight.

Cheap Colorado to Sioux City flight deals and tips

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

Best Price Found	$163
Fastest flight time	1h 38m
Direct flights	Wed, Thu, Fri, Sat and Sun
Airports in Sioux City	1 airport

The best one-way flight to Sioux City from Colorado in the past 72 hours is $163. The best round-trip flight deal from Colorado to Sioux City found on momondo in the last 72 hours is $234.

The fastest flight from Colorado to Sioux City takes 1h 38m

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

There is 1 airport in Sioux City. From Colorado there are direct flights to Sioux City Sioux Gateway (SUX).

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Frequently asked questions about flying from Colorado to Sioux City

When did momondo last update prices for flights from Colorado to Sioux City Sioux Gateway Airport?
Prices for flights from Colorado to Sioux City Sioux Gateway Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Colorado to Sioux City Sioux Gateway Airport?
As of September 2026, there is 1 operator available to choose from for flights from Colorado to Sioux City Sioux Gateway Airport.
How old do you have to be to fly from Colorado to Sioux City Sioux Gateway Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado 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.
What is the most popular plane model from Colorado to Sioux City?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Colorado to Sioux City is Canadair (Bombardier) Regional Jet (62.50% of total bookings). The next most popular plane models are Canadair (Bombardier) Regional Jet 200 (8.33%), Cessna light aircraft (4.17%), and Britten-Norman BN-2/BN-2A/BN-2B Islander (4.17%).

Best airlines flying from Colorado to Sioux City

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $214	Free Cancellation	Rating 7.4 10,238 reviews		Search United Airlines flights

Norfolk

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

Finding the right flight to Sioux City from Colorado is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Sioux City quick and easy, saving you time and money.

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

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

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

Once you have performed a search for Colorado to Sioux City flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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

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Cheap flights from Colorado to Sioux City from $163

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Sioux City departing on 10/8. 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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United Airlines flights from Colorado to Sioux City

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How to get the cheapest flight ticket from Colorado to Sioux City

What is the cheapest month to fly to Sioux City?

What is the cheapest day to depart on your flight to Sioux City?

What is the cheapest time of day to depart on your flight to Sioux City?

What is the cheapest Colorado to Sioux City Sioux Gateway flight route?

What cabin class options are available on Colorado to Sioux City flights?

Can stopping save me money on Colorado to Sioux City flights?

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

What airlines fly to Sioux City?

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

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

How long does it take to fly to Sioux City?

Cheap Colorado to Sioux City flight deals and tips

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Frequently asked questions about flying from Colorado to Sioux City

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An easier way to manage your Sioux City trip

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