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Cheap flights from Sioux City to Colorado from $158

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux City to Colorado departing on 12/4. 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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0 bags

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Find the cheapest flights from Sioux City to Colorado

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:52 pm - 7:40 pmSUX-DEN
1h 48mnonstop
United Airlines Logo
3:35 pm - 6:10 pmDEN-SUX
1h 35mnonstop
$310United Airlines
Find Deal
Tue, Dec 2 - Sat, Dec 6
United Airlines Logo
6:54 pm - 7:51 pmSUX-DEN
1h 57mnonstop
United Airlines Logo
3:35 pm - 6:13 pmDEN-SUX
1h 38mnonstop
$347United Airlines
Find Deal
Fri, Jan 2 - Sun, Jan 4
United Airlines Logo
6:52 pm - 7:40 pmSUX-DEN
1h 48mnonstop
United Airlines Logo
3:35 pm - 6:10 pmDEN-SUX
1h 35mnonstop
$350United Airlines
Find Deal
Sun, Dec 7 - Wed, Dec 10
United Airlines Logo
6:54 pm - 7:51 pmSUX-DEN
1h 57mnonstop
United Airlines Logo
3:35 pm - 6:13 pmDEN-SUX
1h 38mnonstop
$360United Airlines
Find Deal
Tue, Dec 23 - Sun, Dec 28
United Airlines Logo
6:52 pm - 7:40 pmSUX-DEN
1h 48mnonstop
United Airlines Logo
3:35 pm - 6:13 pmDEN-SUX
1h 38mnonstop
$362United Airlines
Find Deal
Sat, Dec 13 - Sat, Dec 20
United Airlines Logo
6:54 pm - 7:51 pmSUX-DEN
1h 57mnonstop
United Airlines Logo
6:00 am - 11:15 pmDEN-SUX
16h 15m1 stop
$391United Airlines
Find Deal
Sat, Jan 3 - Mon, Jan 5
United Airlines Logo
6:54 pm - 7:51 pmSUX-DEN
1h 57mnonstop
United Airlines Logo
9:35 am - 11:15 pmDEN-SUX
12h 40m2 stops
$403United Airlines
Find Deal
Sat, Jan 3 - Mon, Jan 5
United Airlines Logo
6:46 pm - 7:34 pmSUX-DEN
1h 48mnonstop
United Airlines Logo
3:35 pm - 6:10 pmDEN-SUX
1h 35mnonstop
$410United Airlines
Find Deal
Sat, Nov 29 - Wed, Dec 3
United Airlines Logo
6:52 pm - 7:40 pmSUX-DEN
1h 48mnonstop
United Airlines Logo
5:45 pm - 11:15 pmDEN-SUX
28h 30m1 stop
$432United Airlines
Find Deal
Sat, Dec 13 - Sat, Dec 20
United Airlines Logo
6:52 pm - 7:40 pmSUX-DEN
1h 48mnonstop
United Airlines Logo
5:00 am - 11:15 pmDEN-SUX
17h 15m2 stops
$434United Airlines
Find Deal
Sat, Dec 13 - Sat, Dec 20

United Airlines flights from Sioux City to Colorado

Our best United Airlines deals on Sioux City to Colorado flight tickets
United Airlines
Dec 2
SUX6:52 pmSioux City Sioux Gateway
1h 48m
DEN7:40 pmDenver Intl
Dec 6
DEN3:35 pmDenver Intl
1h 35m
SUX6:10 pmSioux City Sioux Gateway
$310
Find similar
United Airlines
Jan 2
SUX6:54 pmSioux City Sioux Gateway
1h 57m
DEN7:51 pmDenver Intl
Jan 4
DEN3:35 pmDenver Intl
1h 38m
SUX6:13 pmSioux City Sioux Gateway
$347
Find similar
United Airlines
Dec 7
SUX6:52 pmSioux City Sioux Gateway
1h 48m
DEN7:40 pmDenver Intl
Dec 10
DEN3:35 pmDenver Intl
1h 35m
SUX6:10 pmSioux City Sioux Gateway
$350
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Sioux City to Colorado 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 November 17, 2025.
Use the filters below to find and compare flights from Sioux City to Colorado that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Tue 12/2

6:52 pm-7:40 pm

Nonstop1h 48m

Denver Intl

Sat 12/6

3:35 pm-6:10 pm

Nonstop1h 35m

$310

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Fri 1/2

6:54 pm-7:51 pm

Nonstop1h 57m

Denver Intl

Sun 1/4

3:35 pm-6:13 pm

Nonstop1h 38m

$347

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sun 12/7

6:52 pm-7:40 pm

Nonstop1h 48m

Denver Intl

Wed 12/10

3:35 pm-6:10 pm

Nonstop1h 35m

$350

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Tue 12/23

6:54 pm-7:51 pm

Nonstop1h 57m

Denver Intl

Sun 12/28

3:35 pm-6:13 pm

Nonstop1h 38m

$360

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 12/13

6:52 pm-7:40 pm

Nonstop1h 48m

Denver Intl

Sat 12/20

3:35 pm-6:13 pm

Nonstop1h 38m

$362

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 1/3

6:54 pm-7:51 pm

Nonstop1h 57m

Denver Intl

Mon 1/5

6:00 am-11:15 pm

1 stop16h 15m

$391

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 1/3

6:54 pm-7:51 pm

Nonstop1h 57m

Denver Intl

Mon 1/5

9:35 am-11:15 pm

2 stops12h 40m

$403

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 11/29

6:46 pm-7:34 pm

Nonstop1h 48m

Denver Intl

Wed 12/3

3:35 pm-6:10 pm

Nonstop1h 35m

$410

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 12/13

6:52 pm-7:40 pm

Nonstop1h 48m

Denver Intl

Sat 12/20

5:45 pm-11:15 pm

1 stop28h 30m

$432

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 12/13

6:52 pm-7:40 pm

Nonstop1h 48m

Denver Intl

Sat 12/20

5:00 am-11:15 pm

2 stops17h 15m

$434

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Colorado from

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

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 Colorado?

The month of March is, on average, the cheapest month to fly to Colorado from Sioux City, with most prices found around $214. The month of February is another great option to travel to Colorado, with average flight prices from Sioux City averaging around $236.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from Sioux City to Colorado is on a Thursday when prices can be found for as low as $365. On the other hand, Sunday is the most expensive day to depart from Sioux City because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $637.

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

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $160. At noon is when there is more demand to fly to Colorado, so prices are often more expensive at around $564 per ticket.

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

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

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

There are 2 cabin classes available to choose from on Sioux City Sioux Gateway to Colorado 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 Sioux City to Colorado flights?

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

Cheap Sioux City to Colorado flight deals and tips

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

Best Price Found

$285

Fastest flight time

1h 48m

Direct flights

Mon, Wed, Fri, Sat and Sun

Airports in Colorado

1 airport
The best one-way flight to Colorado from Sioux City in the past 72 hours is $285. The best round-trip flight deal from Sioux City to Colorado found on momondo in the last 72 hours is $262.
The fastest flight from Sioux City to Colorado takes 1h 48m
Direct flights go from Sioux City to Colorado on Monday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Colorado: Denver Intl (DEN)
Search flight deals

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

    Prices for flights from Sioux City Sioux Gateway Airport to Colorado are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sioux City Sioux Gateway Airport to Colorado.

  • What documentation or ID do you need to fly to Colorado?

    The required travel and health documents for your Colorado 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 Colorado. 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 Sioux City to Colorado?

Best airlines flying from Sioux City to Colorado

Compare and see reviews for airlines that fly from Sioux City to Colorado with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $194Free CancellationRating
7.4
9,013 reviews
Search United Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Colorado from Sioux City.

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

Flights from Sioux City to Colorado with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Sioux City and Colorado by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

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

An easier way to manage your Colorado trip

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Wed 12/17
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