Cheap flights from Sioux City to Denver 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 Denver departing on 7/31. 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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United Airlines flights from Sioux City to Denver
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How to get the cheapest flight ticket from Sioux City to Denver
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 Denver?
The cheapest month to fly to Denver from Sioux City is in March. Flight prices, which tend to average around $214, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in March, then you should wait until November to fly from Sioux City, when ticket prices are also cheap, with an average price of $214.
What is the cheapest day to depart on your flight to Denver?
The cheapest day to depart on your flight to Denver is on a Saturday when prices can be found for as low as $368. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $717.
What is the cheapest time of day to depart on your flight to Denver?
The cheapest time of day to fly to Denver is in the afternoon when flights can be purchased for as low as $412. Flights at noon are often more expensive with an average ticket price of $564.
What is the cheapest Sioux City Sioux Gateway to Denver Intl flight route?
Fly from Sioux City Sioux Gateway to Denver Intl for the best Sioux City Sioux Gateway - Denver Intl flight prices
What is the cheapest airline that flies from Sioux City Sioux Gateway to Denver Intl?
United Airlines is the most popular carrier operating from Sioux City Sioux Gateway to Denver Intl
What airlines fly to Denver?
Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Denver from Sioux City according to our data. Frontier is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 4 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.
How many flights depart from Sioux City to Denver on average per day?
As of June 2025, there are 1 flights per day flying from Sioux City to Denver. The most common time of day flights depart is 6:00PM, with 100% of flights taking off in the evening.
How many flights depart from Sioux City to Denver on average per week?
As of June 2025, there are 7 flights per week flying from Sioux City to Denver. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.
When to book flights from Sioux City to Denver
Cheap Sioux City to Denver (SUX to DEN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Sioux City to Denver
Best Price Found | $158 |
|---|---|
Fastest flight time | 1h 43m |
Direct flights | Mon, Tue, Wed, Thu, Fri and Sun |
Airports in Denver | 1 airport |
How far is Sioux City Sioux Gateway to Denver Intl by plane?
The distance between Sioux City Sioux Gateway and Denver Intl is about 485.2 mi. In terms of flight time, this usually takes a little over 1h 43m.
When did momondo last update prices for flights from Sioux City Sioux Gateway Airport to Denver Intl Airport?
Prices for flights from Sioux City Sioux Gateway Airport to Denver Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Sioux City Sioux Gateway Airport to Denver Intl Airport?
As of June 2025, there is 1 operator available to choose from for flights from Sioux City Sioux Gateway Airport to Denver Intl Airport.
How old do you have to be to fly from Sioux City Sioux Gateway Airport to Denver Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The travel and health documents you'll need for your trip to Denver Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Denver Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Sioux City to Denver?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Sioux City to Denver is Canadair (Bombardier) Regional Jet (37.50% of total bookings). The next most popular plane models are Airbus A320-100/200 (12.50%), Boeing 737 MAX 8 (8.93%), and Airbus A319 (7.14%).
What is the most popular airline from Sioux City to Denver?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Sioux City to Denver is United Airlines (100% of total bookings).
Best airlines flying from Sioux City to Denver
Compare and see reviews for airlines that fly from Sioux City to Denver with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $194 | Free Cancellation | Rating 7.4 8,810 reviews |
United Airlines Flights From Sioux City to Denver
United Airlines is one of the most popular airlines flying from Sioux City to Denver, operating 7 flights/week on average for this route. A good United Airlines flight deal for Sioux City to Denver starts from $194 round-trip, up to an average price of $271. Our users have rated United Airlines at 7.4/10.
Traveling to a place near Denver?
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Why should I use momondo to find a flight deal from Sioux City to Denver?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sioux City to Denver for you.
Can I find flights from Sioux City to Denver with flexible booking policies on momondo?
All flight searches from Sioux City to Denver on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Sioux City to Denver?
momondo provides multiple filters to help you find the best flight to Denver from Sioux City. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Sioux City to Denver right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Denver, momondo offers a useful price alert feature which will track prices for flights to Denver from Sioux City and alert you when they change.