Title: Cheap Flights from Denver (DEN) to Sioux City (SUX) - Expedia.ca ![Chief War Eagle is buried at the top of a high bluff near the confluence of the Missouri and Big Sioux Rivers. A large sculpture depicting him with a peace pipe marks this spot. He was a Sioux Indian Chief that promoted peace with pioneers settling the western frontier.](https://images.trvl-media.com/place/601710/b208f7a4-6413-4b56-85ca-76b0af29564e.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by Erik Rowley ![](https://images.trvl-media.com/place/601710/b208f7a4-6413-4b56-85ca-76b0af29564e.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Denver (DEN) to Sioux City (SUX) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Denver International Airport (DEN) to Sioux City, IA (SUX-Sioux Gateway) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:den,to:sux,departure:20/11/2025TANYT&leg2=from:sux,to:den,departure:27/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Find the cheapest month to fly from Denver (DEN) to Sioux City (SUX) ### June is typically the cheapest month to fly From CA $273 - CA $648 per traveller. ## Frequently asked questions ### How much is a flight from Denver Airport to Colonel Bud Day Field? > Pack your bags, because round-trip journeys between DIA airport and Colonel Bud Day Field start from . That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book today to score the best deal. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Denver Airport to SUX? > The majority of flights can be cancelled online, but every air carrier has a different set of terms and conditions. If you do decide to cancel your flight, go to our [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Denver Intl. Airport (DEN) to Sioux Gateway Airport (SUX) that have flexible change policies? > Use our "No change fees" filter to find flexible ticketing options for your flight from DEN to Colonel Bud Day Field. This allows you to lock in a fantastic price ahead of time and still have the freedom to reschedule without any extra fees. If the new flight costs more, you'll just cover the difference. ### How many hours is the flight from Denver Airport to Sioux Gateway Airport (SUX)? > The average flight between Denver Airport and SUX is 4 hours and 25 minutes. If you get peckish on longer flights, pack some snacks in your hand luggage. ### How far is the flight from DIA airport to SUX? > That new movie you've been desperate to see will have to wait — the flight distance between DIA airport (DEN) and SUX (SUX) is only 750 kilometres. The captain will be asking you to buckle up for landing before you know it. ### Which airlines fly direct from DIA airport to Colonel Bud Day Field? > If you'd like to fly straight from DIA airport to Sioux Gateway Airport (SUX), United Airlines (UA) is an excellent option. It operates 30 monthly flights between Denver and Sioux City. ### Are Denver Airport to Sioux Gateway Airport (SUX) flight tickets cheaper when they're purchased at the last minute? > Flight tickets from Denver Intl. Airport (DEN) to SUX are available up to a year before departure on Expedia. And although you may occasionally score fantastic last-minute deals, it's never something you can count on. Also, booking your flights ahead of time means you'll have more choices — and you can avoid ending up with the dreaded middle seat! We frequently update our fares to bring you the best bargains, so keep checking in for all the latest specials. ## Travel information | Origin airport | Denver Intl. | | --- | --- | | Destination airport | Sioux Gateway | | Distance | 745 km | | Average flight time | 1 hour 33 mins | ## Book with confidence ### Denver to Sioux City Flights **The easy way to book your flights from Denver to Sioux City**  With Expedia, it’s simple to find and book flights to Sioux City from Denver whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Sioux Gateway, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Denver to Sioux City today, tomorrow, or this week.   **Save dollars with cheap flights from Denver Intl., DEN to Sioux Gateway, SUX**  Sort your search results by price to find great deals on your flight from Denver to Sioux City—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Sioux City from Denver currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Sioux City   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Sioux City from Denver**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. 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