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Sioux City

$203+ Cheap flights from Colorado to Sioux City (SUX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SUX
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheap flight deals from Colorado to Sioux City

Keep the following information in mind while searching for Colorado to Sioux City flight deals. Data was last updated mayo 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$254
(United Airlines)

One-way from

$203
(United Airlines)

Popular in

April

Cheapest in

November

Average price

$280
Provider with most accurate pricing for Denver Intl-Sioux City Sioux Gateway flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Sioux City Sioux Gateway flights.
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From Colorado to Sioux City Sioux Gateway
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One-way flight from Colorado to Sioux City Sioux Gateway
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Highest demand for flights based on searches. 12% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Colorado to Sioux City

Cheapest flights from Colorado to Sioux City
Explore the most affordable flight options available from Colorado to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mayo 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/282:35 pmDEN - SUX
Nonstop1h 40mUnited Airlines
mié. 6/46:35 pmSUX - DEN
Nonstop1h 45mUnited Airlines
Deal found 4/28$214
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/157:30 amCOS - SUX
1 stop5h 58mUnited Airlines
lun. 5/193:26 pmSUX - COS
1 stop3h 28mUnited Airlines
Deal found 4/30$473

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated mayo 1, 2025.
Use the filters below to find and compare flights from Colorado to Sioux City that are best for you.

Fly from

Colorado

Fly to

Sioux City

Route

Depart

Return

Price

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

mié. 5/28

2:35 pm-5:15 pm

Nonstop1h 40m

Sioux City Sioux Gateway

mié. 6/4

6:35 pm-7:20 pm

Nonstop1h 45m

$214

Colorado SpringsSioux City

COS - SUX

COSSUX

Colorado Springs

jue. 5/15

7:30 am-2:28 pm

1 stop5h 58m

Sioux City Sioux Gateway

lun. 5/19

3:26 pm-5:54 pm

1 stop3h 28m

$473

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

jue. 5/8

11:53 am-2:28 pm

Nonstop1h 35m

$203

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Best time to book a flight from Colorado to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Colorado to Sioux City?

Currently, October is the cheapest month in which you can book a flight from Colorado to Sioux City (average of $318). Flying from Colorado to Sioux City in March is currently the most expensive (average of $446). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CO to SUX?

Find hourly flight availability from Colorado to Sioux City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mayo 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Sioux City as you normally would.

Rainfall in Sioux City by month

Plan your trip to Sioux City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sioux City ranges from 0.7 - 4.2 inches per month. June is typically the wettest month, when rainfall can reach 4.2 in. January is typically the driest time to visit Sioux City when rainfall is around 0.7 in.

Temperature in Sioux City by month

Plan your trip to Sioux City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sioux City, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Sioux City

Get insights into the airlines that provide service to Sioux City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sioux City. Reviews last updated mayo 1, 2025.
United Airlines
7.4
Good
8,696 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,696 reviews
United Airlines
7.4
Good
8,696 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Colorado to Sioux City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sioux City from Colorado?

    Sioux City Sioux Gateway (SUX), located 7.0 mi from the city center, is the airport you fly into when you book flights from Colorado to Sioux City.

  • Can I find deals for flights from Colorado to Sioux City that include hotel bookings?

    Yes. In addition to deals on Colorado to Sioux City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Sioux City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Sioux City.

  • Can I find deals for business class flights from Colorado to Sioux City?

    Yes. Cheapflights offers flight deals from Colorado to Sioux City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to Sioux City?

    Currently, October is the cheapest month in which you can book a flight from Colorado to Sioux City (average of $318). Flying from Colorado to Sioux City in March is currently the most expensive (average of $446). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Colorado?

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

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Top airline flying from Colorado to Sioux City

Discover the top airline that operate flights from Colorado to Sioux City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$214Average$278FlexibilityNo cancel feeOn-time69%

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