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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 4/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Colorado to Sioux City

Cheap round-trip flights

Enter your travel dates to find the best prices.
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, Apr 18 - Mon, Apr 20
United Airlines Logo
9:02 pm - 11:44 pm
DEN
-
SUX
1h 42mnonstop
United Airlines Logo
6:32 pm - 7:25 pm
SUX
-
DEN
1h 53mnonstop
$254United Airlines
Fri, Apr 24 - Sun, Apr 26
United Airlines Logo
8:05 am - 10:46 am
DEN
-
SUX
1h 41mnonstop
United Airlines Logo
6:32 pm - 7:25 pm
SUX
-
DEN
1h 53mnonstop
$262United Airlines
Fri, Apr 10 - Mon, Apr 13
United Airlines Logo
8:15 am - 10:57 am
DEN
-
SUX
1h 42mnonstop
United Airlines Logo
11:32 am - 12:26 pm
SUX
-
DEN
1h 54mnonstop
$280United Airlines
Fri, May 22 - Tue, May 26
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
$302United Airlines
Fri, Jul 3 - Sun, Jul 5
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
$310United Airlines
Tue, Apr 14 - Thu, Apr 16
United Airlines Logo
6:00 am - 10:41 am
COS
-
SUX
3h 41m
1 stop
United Airlines Logo
6:00 am - 8:47 am
SUX
-
COS
3h 47m
1 stop
$332United Airlines
Thu, May 14 - Sun, May 17
United Airlines Logo
9:08 pm - 11:46 pm
DEN
-
SUX
1h 38mnonstop
United Airlines Logo
11:32 am - 12:26 pm
SUX
-
DEN
1h 54mnonstop
$350United Airlines
Tue, Sep 1 - Sat, Sep 5
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
$360United Airlines
Thu, Jul 2 - Sun, Jul 5
United Airlines Logo
8:05 am - 10:46 am
DEN
-
SUX
1h 41mnonstop
United Airlines Logo
12:55 pm - 4:00 pm
SUX
-
DEN
28h 05m
1 stop
$363United Airlines
Sat, Apr 18 - Mon, Apr 20

United Airlines flights from Colorado to Sioux City

Our best United Airlines deals on Colorado to Sioux City flight tickets
United Airlines
Apr 23
DEN8:05 amDenver Intl
1h 41m
SUX10:46 amSioux City Sioux Gateway
Apr 26
SUX6:32 pmSioux City Sioux Gateway
1h 53m
DEN7:25 pmDenver Intl
$214
United Airlines
Apr 24
DEN9:02 pmDenver Intl
1h 42m
SUX11:44 pmSioux City Sioux Gateway
Apr 26
SUX6:32 pmSioux City Sioux Gateway
1h 53m
DEN7:25 pmDenver Intl
$254
United Airlines
Apr 10
DEN8:05 amDenver Intl
1h 41m
SUX10:46 amSioux City Sioux Gateway
Apr 13
SUX6:32 pmSioux City Sioux Gateway
1h 53m
DEN7:25 pmDenver Intl
$262

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Sioux City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 25, 2026.
Use the filters below to find and compare flights from Colorado to Sioux City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Sat 4/18

8:05 am-10:46 am

Nonstop1h 41m

Sioux City Sioux Gateway

Mon 4/20

6:00 am-6:53 am

Nonstop1h 53m

$214

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Fri 4/24

9:02 pm-11:44 pm

Nonstop1h 42m

Sioux City Sioux Gateway

Sun 4/26

6:32 pm-7:25 pm

Nonstop1h 53m

$254

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Fri 4/10

8:05 am-10:46 am

Nonstop1h 41m

Sioux City Sioux Gateway

Mon 4/13

6:32 pm-7:25 pm

Nonstop1h 53m

$262

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Fri 5/22

8:15 am-10:57 am

Nonstop1h 42m

Sioux City Sioux Gateway

Tue 5/26

11:32 am-12:26 pm

Nonstop1h 54m

$280
Quickest round-trip

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Fri 7/3

9:05 pm-11:41 pm

Nonstop1h 36m

Sioux City Sioux Gateway

Sun 7/5

6:30 pm-7:24 pm

Nonstop1h 54m

$302

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Tue 4/14

8:05 am-10:46 am

Nonstop1h 41m

Sioux City Sioux Gateway

Thu 4/16

6:00 am-6:53 am

Nonstop1h 53m

$310

Colorado SpringsSioux City

COS - SUX

COSSUX

Colorado Springs

Thu 5/14

6:00 am-10:41 am

1 stop3h 41m

Sioux City Sioux Gateway

Sun 5/17

6:00 am-8:47 am

1 stop3h 47m

$332

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Tue 9/1

9:08 pm-11:46 pm

Nonstop1h 38m

Sioux City Sioux Gateway

Sat 9/5

11:32 am-12:26 pm

Nonstop1h 54m

$350

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Thu 7/2

9:05 pm-11:41 pm

Nonstop1h 36m

Sioux City Sioux Gateway

Sun 7/5

6:30 pm-7:24 pm

Nonstop1h 54m

$360

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Sat 4/18

8:05 am-10:46 am

Nonstop1h 41m

Sioux City Sioux Gateway

Mon 4/20

12:55 pm-4:00 pm

1 stop28h 05m

$363

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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See travel insights to Sioux City from

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

What is the cheapest month to fly to Sioux City?

The cheapest month to fly to Sioux City from Colorado is in June. Flight prices, which tend to average around $254, are often lower during this time because this is during the off-season. The month of April is another great option to travel to Sioux City, with average flight prices from Colorado averaging around $258.

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 $214. 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 $410.

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 $350 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 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

$214

Fastest flight time

1h 36m

Direct flights

Wed, 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 $214
The fastest flight from Colorado to Sioux City takes 1h 36m
Direct flights go from Colorado to Sioux City on Wednesday, 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?

  • 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?

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 AirlinesPriceFrom $214Free CancellationRating
7.4
9,477 reviews
Search United Airlines flights

Traveling to a place near Sioux City?

Book flights to Sioux City if you plan to visit one of these locations
Norfolk

Why use momondo?

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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