On this page, you can find and book flights from Denver to Sioux City. Covering a distance of 783 km, the route is served approximately 2 times a week, ensuring a regular connection between the cities.
Flights on this route are operated by United Airlines (UA). Fares are dynamic, so we recommend using the low-fare calendar and checking information on how to get to Denver airport and arrange a transfer from Sioux City airport.
The table shows direct flights Denver → Sioux City on the selected date. The flight takes approximately 1 h 42 min. Regular flights are operated by United Airlines. Departures from Denver International Airport and Centennial Airport airports, arrivals at Sioux Gateway Airport.
For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.
Below is a calendar of the lowest flight ticket prices for Denver — Sioux City by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $177 in e, and the most expensive are around $193 in u. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.
Denver → Sioux City, average one-way price
| Month | Average price | Level | Month | Average price | Level | Month | Average price | Level |
|---|---|---|---|---|---|---|---|---|
| Jan | $149 | low | May | $216 | high | Sep | $170 | low |
| Feb | $180 | medium | Jun | $206 | high | Oct | $175 | medium |
| Mar | $144 | low | Jul | $190 | medium | Nov | $144 | low |
| Apr | $226 | high | Aug | $185 | medium | Dec | $175 | medium |
Some values are estimated based on seasonality.
The warmest month in Sioux City is July, with an average temperature of 30°C, while the coldest period is January and February, when temperatures drop to -9.4°C. Peak precipitation occurs in May, bringing up to 121.9 mm of rainfall.
The lowest fares are recorded for July and the autumn months, starting $177. Peak prices occur in the spring: in March and April, rates increase and start $193.
September and October are the best choices for flying due to the balance of mild weather and affordable prices. Winter months should be chosen with caution due to severe frosts and potential flight delays caused by weather conditions.
Regular service on the route from Denver to Sioux City is provided by United Airlines (UA). On average, there are about 2 flights per week, allowing passengers to choose convenient travel dates. You can find detailed information about the schedule for specific days and available fares in the interactive list below.
Flights Denver — Sioux City depart from Denver International Airport and Centennial Airport and arrive at Sioux Gateway Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.
The estimated travel time is about 1 hour 10 minutes, given the 783 km distance between the cities.
The primary carrier operating regular flights on this route is United Airlines (UA).
Yes, direct flights are available on this route, operating approximately 2 times a week.
All flights from Denver arrive at Sioux City (SUX) airport.
Airfares change constantly based on demand; you can check the current minimum for your dates in the low-fare calendar on this page.
Where travelers fly most — pick a route and check prices
