HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sioux City

$156+ Cheap flights from Denver to Sioux City (DEN - 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 12/26. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SUX
Dec 25 — Jan 11
Wed 12/25
Wed 1/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Sioux City with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Denver to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Sioux City (SUX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 20, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(United Airlines)

One-way from

$156
(United Airlines)

Popular in

June

Cheapest in

April

Average price

$303
Provider with most accurate pricing for Denver Intl-Sioux City Sioux Gateway flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Sioux City Sioux Gateway flights.
Search Deals
From Denver Intl to Sioux City Sioux Gateway
Search Deals
One-way flight from Denver Intl to Sioux City Sioux Gateway
Search Deals
High demand for flights, 11% potential price rise
Search Deals
Best time to find cheap flights, 4% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

Find flight deals from Denver to Sioux City

Cheapest flights from Denver to Sioux City
Explore the most affordable flight options available from Denver to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 20, 2024.

This United Airlines deal was found by Cheapflights users on 12/19. 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.
Mon 12/2312:15 pmDEN - SUX
Nonstop1h 41mUnited Airlines
Thu 12/263:31 pmSUX - DEN
Nonstop1h 49mUnited Airlines
Deal found 12/19$328

Find flights from Denver to Sioux City within your budget

Customize your flight search to find flights from Denver 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 December 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Fri 1/10

1:45 pm-4:23 pm

Nonstop1h 38m

Sioux City Sioux Gateway

Tue 1/14

5:15 pm-6:05 pm

Nonstop1h 50m

$257

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Mon 12/30

6:00 am-11:05 pm

1 stop16h 05m

Sioux City Sioux Gateway

Tue 12/31

7:20 am-4:40 pm

2 stops10h 20m

$1,053

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Thu 12/26

12:15 pm-2:56 pm

Nonstop1h 41m

$156

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Compare providers for flights from Denver to Sioux City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Sioux City in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Sioux City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Sioux City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Sioux City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Sioux City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Sioux City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from Denver 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.

Travel insights for flights from Denver to Sioux City

Get recent, data-driven insights about flights from Denver to Sioux City including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Denver to Sioux City (average of $318). Flying from Denver 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 DEN to SUX?

Find hourly flight availability from Denver 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 December 20, 2024.

It’s optimal to fly from Denver to Sioux City in the morning. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight in the afternoon.

Weekly flight availability from Denver to Sioux City

Explore weekly flight availability from Denver to Sioux City. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 20, 2024.

The most flights from DEN to SUX are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 December 20, 2024.
United Airlines
7.4
Good
9,043 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.7

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

United Airlines
7.4
Good
9,043 reviews
United Airlines
7.4
Good
9,043 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.7

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

Related info for your journey

Find useful and relevant information for your journey from Denver 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 airports do I use to fly from Denver to Sioux City?

    If you wish to fly to Sioux City from Denver, then you need to book flights from Denver Intl to Sioux City Sioux Gateway. There is 1 flight from Denver Intl (DEN) to Sioux Gateway (SUX) per day to choose from. Flights to Sioux City from Denver Intl are available from 1 airline, which means you should have some options if you want to compare airfare deals. 1h 34m is how long a nonstop flight from Denver to Sioux City Sioux Gateway typically takes.

  • What is the cheapest airline to fly from Denver to Sioux City round-trip?

    United Airlines, at $257, was found to be the cheapest airline from Denver to Sioux City.. Users have found that United Airlines is 11% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver 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 Denver to Sioux City?

    Currently, October is the cheapest month in which you can book a flight from Denver to Sioux City (average of $318). Flying from Denver 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Denver to Sioux City

Discover the top airline that operate flights from Denver 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 December 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$214Average$278FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.