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 44% 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.

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

As of February 2026, 12 flights take off from Colorado and land in Sioux City each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

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 February 2026. The most popular departure time for this route is 9:00PM, with 53% of flights per day taking off in the evening.

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 30m on average. Another popular route from Colorado to Sioux City is flying from Colorado Springs to Omaha, which will take roughly 3h 32m. Keep in mind that layovers or delays could extend your travel time.

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

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 February 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.

$153 Cheap Flights from Colorado to Sioux City in 2026

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8:05 am - 10:46 am

DEN

SUX

1h 41mnonstop

6:00 am - 6:53 am

SUX

DEN

1h 53mnonstop

$214United Airlines

ons., apr. 29 - søn., maj 3

9:02 pm - 11:44 pm

DEN

SUX

1h 42mnonstop

6:00 am - 6:53 am

SUX

DEN

1h 53mnonstop

$254United Airlines

fre., apr. 24 - søn., apr. 26

6:00 am - 10:45 am

COS

SUX

3h 45m

1 stop

6:10 am - 8:49 am

SUX

COS

3h 39m

1 stop

$287United Airlines

tor., mar. 5 - tor., mar. 12

9:05 pm - 11:42 pm

DEN

SUX

1h 37mnonstop

6:46 pm - 7:40 pm

SUX

DEN

1h 54mnonstop

$310United Airlines

fre., feb. 20 - tir., feb. 24

9:04 pm - 11:41 pm

DEN

SUX

1h 37mnonstop

6:10 am - 7:04 am

SUX

DEN

1h 54mnonstop

$350United Airlines

tor., mar. 12 - lør., mar. 14

5:44 pm - 5:56 pm

DEN

SUX

23h 12m

1 stop

6:32 pm - 7:25 pm

SUX

DEN

1h 53mnonstop

$377United Airlines

fre., apr. 24 - søn., apr. 26

7:17 pm - 5:56 pm

DEN

SUX

21h 39m

1 stop

6:00 am - 6:53 am

SUX

DEN

1h 53mnonstop

$391United Airlines

fre., apr. 24 - søn., apr. 26

7:45 am - 5:41 pm

DEN

SUX

8h 56m

1 stop

6:30 pm - 7:24 pm

SUX

DEN

1h 54mnonstop

$397United Airlines

fre., mar. 6 - fre., mar. 13

5:44 pm - 5:56 pm

DEN

SUX

23h 12m

2 stops

6:00 am - 6:53 am

SUX

DEN

1h 53mnonstop

$408United Airlines

fre., apr. 24 - søn., apr. 26

6:06 pm - 5:56 pm

DEN

SUX

22h 50m

2 stops

6:00 am - 6:53 am

SUX

DEN

1h 53mnonstop

$417United Airlines

fre., apr. 24 - søn., apr. 26

United Airlines flights from Colorado to Sioux City

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

United Airlines

Apr 29

DEN8:05 amDenver Intl

1h 41m

SUX10:46 amSioux City Sioux Gateway

May 3

SUX6:00 amSioux City Sioux Gateway

1h 53m

DEN6:53 amDenver Intl

$214

United Airlines

Apr 24

DEN9:02 pmDenver Intl

1h 42m

SUX11:44 pmSioux City Sioux Gateway

Apr 26

SUX6:00 amSioux City Sioux Gateway

1h 53m

DEN6:53 amDenver Intl

$254

United Airlines

Mar 5

COS6:00 amColorado Springs

3h 45m

1 stop

SUX10:45 amSioux City Sioux Gateway

Mar 12

SUX6:10 amSioux City Sioux Gateway

3h 39m

1 stop

COS8:49 amColorado Springs

$287

Fly from

Fly to

Route

Depart

Return

Price

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

ons. 4/29

8:05 am-10:46 am

Nonstop1h 41m

Sioux City Sioux Gateway

søn. 5/3

6:00 am-6:53 am

Nonstop1h 53m

$214

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

fre. 4/24

9:02 pm-11:44 pm

Nonstop1h 42m

Sioux City Sioux Gateway

søn. 4/26

6:00 am-6:53 am

Nonstop1h 53m

$254

Colorado SpringsSioux City

COS - SUX

COSSUX

Colorado Springs

tor. 3/5

6:00 am-10:45 am

1 stop3h 45m

Sioux City Sioux Gateway

tor. 3/12

6:10 am-8:49 am

1 stop3h 39m

$287

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

fre. 2/20

9:05 pm-11:42 pm

Nonstop1h 37m

Sioux City Sioux Gateway

tir. 2/24

6:46 pm-7:40 pm

Nonstop1h 54m

$310

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

tor. 3/12

9:04 pm-11:41 pm

Nonstop1h 37m

Sioux City Sioux Gateway

lør. 3/14

6:10 am-7:04 am

Nonstop1h 54m

$350

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

fre. 4/24

5:44 pm-5:56 pm

1 stop23h 12m

Sioux City Sioux Gateway

søn. 4/26

6:32 pm-7:25 pm

Nonstop1h 53m

$377

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

fre. 4/24

7:17 pm-5:56 pm

1 stop21h 39m

Sioux City Sioux Gateway

søn. 4/26

6:00 am-6:53 am

Nonstop1h 53m

$391

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

fre. 3/6

7:45 am-5:41 pm

1 stop8h 56m

Sioux City Sioux Gateway

fre. 3/13

6:30 pm-7:24 pm

Nonstop1h 54m

$397

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

fre. 4/24

5:44 pm-5:56 pm

2 stops23h 12m

Sioux City Sioux Gateway

søn. 4/26

6:00 am-6:53 am

Nonstop1h 53m

$408

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

fre. 4/24

6:06 pm-5:56 pm

2 stops22h 50m

Sioux City Sioux Gateway

søn. 4/26

6:00 am-6:53 am

Nonstop1h 53m

$417

Flights are sorted by cheapest round-trip flights first.

Sorted 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

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Other information

What is the cheapest month to fly to Sioux City?

The cheapest month to fly to Sioux City from Colorado is in January. Flight prices, which tend to average around $300, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Sioux City, with average flight prices from Colorado averaging around $311.

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 Sunday. momondo users have found tickets for Sunday departures for as low as $310. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Tuesday 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 $460.

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 morning when flights can be purchased for as low as $334. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $355 on average. Flights to Sioux City from Colorado at noon 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 Sioux Gateway flights?

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

No. A direct flight is the cheapest option for a flight between Colorado to Sioux City.

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	$297
Fastest flight time	1h 37m
Direct flights	Tue, Thu, Fri and Sat
Airports in Sioux City	1 airport

The best flight deal from Colorado to Sioux City found on momondo in the last 72 hours is $297

The fastest flight from Colorado to Sioux City takes 1h 37m

Direct flights go from Colorado to Sioux City on Tuesday, Thursday, Friday and Saturday. 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).

Search flight deals

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 February 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 (100.00% of total bookings).

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 9,250 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 $214

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Sioux City departing on 4/29. 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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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?

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 Sioux Gateway flights?

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

No. A direct flight is the cheapest option for a flight between Colorado to Sioux City.

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

What airlines fly to Sioux City?

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 February 2026. The most popular departure time for this route is 9:00PM, with 53% of flights per day taking off in the evening.

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

As of February 2026, 12 flights take off from Colorado and land in Sioux City each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

How long does it take to fly to Sioux City?

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

Fastest flight time

Direct flights

Airports in Sioux City

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

How many operators does momondo search 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?

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

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

Best airlines flying from Colorado to Sioux City

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

Traveling to a place near Sioux City?

Why use momondo?

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

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

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

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

An easier way to manage your Sioux City 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

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List of cabin classes available on flights landing in Sioux City. Availability may vary depending on flight origin and airline.

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