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DEN - SUX

Find cheap flights from Denver to Sioux City from $148

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Sioux City departing on 5/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 5/26
Sun 6/2

Search hundreds of travel sites at once for deals on flights to Sioux City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Sioux City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Sioux City, as well as popular online travel agencies
In the last 7 days travelers have searched 44,738,066 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Cheap flight deals from Denver to Sioux City (DEN-SUX)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Sioux City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
3:47 pm - 6:26 pmDEN-SUX
1h 39mnonstop
7:01 pm - 7:50 pmSUX-DEN
1h 49mnonstop
$194United Airlines
Find Deal
Tue, Jul 2 - Sat, Jul 6
3:47 pm - 6:26 pmDEN-SUX
1h 39mnonstop
7:01 pm - 7:50 pmSUX-DEN
1h 49mnonstop
$267United Airlines
Find Deal
Tue, Jul 2 - Sun, Jul 7
3:40 pm - 6:14 pmDEN-SUX
1h 34mnonstop
6:50 pm - 7:34 pmSUX-DEN
1h 44mnonstop
$268United Airlines
Find Deal
Wed, May 8 - Sat, May 11
12:20 pm - 2:54 pmDEN-SUX
1h 34mnonstop
3:31 pm - 4:15 pmSUX-DEN
1h 44mnonstop
$278United Airlines
Find Deal
Fri, Sep 13 - Sun, Sep 15
12:20 pm - 2:54 pmDEN-SUX
1h 34mnonstop
3:31 pm - 4:15 pmSUX-DEN
1h 44mnonstop
$300United Airlines
Find Deal
Thu, Aug 29 - Sun, Sep 1
3:40 pm - 6:14 pmDEN-SUX
1h 34mnonstop
6:54 pm - 7:43 pmSUX-DEN
1h 49mnonstop
$310United Airlines
Find Deal
Fri, May 17 - Fri, May 24
7:24 pm - 10:52 pmDEN-SUX
26h 28m1 stop
3:31 pm - 4:15 pmSUX-DEN
1h 44mnonstop
$327United Airlines
Find Deal
Fri, Aug 30 - Mon, Sep 2
12:20 pm - 2:54 pmDEN-SUX
1h 34mnonstop
7:45 am - 4:12 pmSUX-DEN
9h 27m1 stop
$359United Airlines
Find Deal
Thu, Aug 29 - Sun, Sep 1
7:24 pm - 10:52 pmDEN-SUX
26h 28m1 stop
3:31 pm - 4:15 pmSUX-DEN
1h 44mnonstop
$370United Airlines
Find Deal
Fri, Aug 30 - Sun, Sep 1
6:25 pm - 10:53 pmDEN-SUX
27h 28m1 stop
7:01 pm - 7:50 pmSUX-DEN
1h 49mnonstop
$373United Airlines
Find Deal
Tue, Jul 2 - Sat, Jul 6

Flights from Denver to Sioux City - Travel Insights & Trends

Get data-powered insights and trends into flights from Denver to Sioux City to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Denver to Sioux City?

The average price of all flights from Denver to Sioux City clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Denver to Sioux City, look for departures on Sundays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Sioux City, Monday is the cheapest day to fly and Tuesday is the most expensive.

What is the cheapest month to fly from Denver to Sioux City?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Denver to Sioux City, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Denver to Sioux City is December, where tickets cost $198 on average. On the other hand, the most expensive months are July and April, where the average cost of tickets is $457 and $396 respectively.

How far in advance should I book a flight from Denver to Sioux City?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Denver to Sioux City, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Denver to Sioux City, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 21 days before departure.

Which airlines fly non-stop between Denver and Sioux City?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Denver to Sioux City.
There is just one airline that flies from Denver to Sioux City direct and that is United Airlines. The best one-way deal found from United Airlines for the route is $198.

How many flights are there between Denver and Sioux City per day?

Each day, there are 2 nonstop flights that take off from Denver and land in Sioux City, with an average flight time of 1h 35m. The most common departure time is 3:00 pm and most flights take off in the afternoon. Each week, there are 14 flights and there are the same amount of flights each day 2.

Which cabin class options are there for flights between Denver and Sioux City?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Denver to Sioux City take?

Direct flights take on average 1h 34m to travel the 465 miles between Denver and Sioux City.

What’s the earliest departure time from Denver to Sioux City?

Early birds can take the earliest flight from Denver at 8:15 am and will be landing in Sioux City at 10:49 am.

What’s the latest departure time from Denver to Sioux City?

If you prefer to fly at night, the latest flight from Denver to Sioux City jets off at 3:47 pm and lands at 6:26 pm.

Good to know

Low season

December

High season

June

Cheapest flight

$148
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Denver to Sioux City

When to book flights from Denver to Sioux City

Are your dates flexible? Find out the best times to travel from Denver to Sioux City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Sioux City

  • What is the cheapest flight from Denver to Sioux City?

    In the last 3 days, the lowest price for a flight from Denver to Sioux City was $148 for a one-way ticket and $194 for a round-trip.

  • Do I need a passport to fly between Denver and Sioux City?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Denver to Sioux City?

    The Canadair (Bombardier) Regional Jet is the aircraft model that flies most regularly on the Denver to Sioux City flight route.

  • Which airline alliances offer flights from Denver to Sioux City?

    Star Alliance is the only airline alliance operating flights between Denver and Sioux City.

  • On which days can I fly direct from Denver to Sioux City?

    There are nonstop flights from Denver to Sioux City on a daily basis.

  • How does KAYAK find such low prices on flights from Denver to Sioux City?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Sioux City.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Sioux City?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux City from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Sioux City?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sioux City with an airline and back to Denver with another airline. Booking your flights between Denver and SUX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Sioux City?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sioux City from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from DEN to Sioux City

  • Looking for a cheap flight? 25% of our users found flights on this route for $148 or less one-way and $220 or less round-trip.

Prefer to fly non-stop from Denver to Sioux City?

Find which airlines fly direct from Denver Intl to Sioux Gateway, which days they fly and book direct flights.

Nonstop departures

Denver Intl to Sioux City Sioux Gateway

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Nonstop returns

Sioux City Sioux Gateway to Denver Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights
See more direct flights

Top airline flying from Denver to Sioux City

 
See real verified KAYAK customer reviews for airlines flying from Denver to Sioux City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Sioux City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 11226 reviews
7.2comfort
7.1entertainment
8.1crew
6.7food
7.7boarding
Airline reviews

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

2.0 MediocreAnonymous, Apr 2024DEN - SHV
Read more about United Airlines reviews

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

Too many fees (but that seems to apply to all airlines nowadays)

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Everything was very good. Boarding and takeoff were on time and organized. Had a good flight

Wheelchair assistance was not complete. The person left me at the departure gate without informing the groundstaff of my requirements. I had to walk to the departure counter to ask for help to reach the plane door. The crew informed me that in future they were not allowed to help passengers like me, senior citizen and Wheelchair passenger with placing their carry on bags in the overhead compartments!

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

Seats are way too snug for my hip to knee ratio and the recline on the seat in front of me made my experience worst. My legs had no room at all. Not a plane for people 6 ft or over unless you fly first class.

Delayed for maintenance issue?? Should have been addressed before boarding. Put my bag on an earlier flight, but didn’t ask if I wanted to change to an earlier flight. Arrived to find my bag locked up and no agent to be found when I landed.

We learned certain countries (a few) require a notarized letter from an ex to give permission for children to travel to those countries with the other spouse together with birth certificates. To find this out one hour before flying—not good. Nowhere is it documented by the airlines though they require it. Make sure about all documentation required.

Book cheap flights from Denver to Sioux City

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Denver to Sioux City found on KAYAK in the last 72 hours.
5/7Tue
nonstopUnited Airlines
1h 34mDEN-SUX
$148
5/7Tue
1 stopUnited Airlines
10h 29mDEN-SUX
$379
5/7Tue
2 stopsUnited Airlines
14h 03mDEN-SUX
$389
5/7Tue
1 stopUnited Airlines
24h 54mDEN-SUX
$469

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Last minute flights from Denver to Sioux City

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Denver to Sioux City that are departing in the next 10 days.
4/27Sat
nonstopUnited Airlines
1h 34mDEN-SUX
4/30Tue
nonstopUnited Airlines
1h 44mSUX-DEN
$340
4/27Sat
nonstopUnited Airlines
1h 34mDEN-SUX
4/30Tue
multi-stopUnited Airlines
28h 35mSUX-DEN
$561
4/27Sat
multi-stopUnited Airlines
14h 04mDEN-SUX
4/30Tue
nonstopUnited Airlines
1h 44mSUX-DEN
$572
4/27Sat
nonstopUnited Airlines
1h 34mDEN-SUX
4/30Tue
multi-stopUnited Airlines
27h 30mSUX-DEN
$661
4/27Sat
multi-stopUnited Airlines
26h 23mDEN-SUX
4/30Tue
nonstopUnited Airlines
1h 44mSUX-DEN
$667

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Denver - Sioux City Flights

Departure:

Denver (DEN)United States

Destination:

Sioux City (SUX)United States

Return flight deals:

Sioux City - Denver

Cabin classes:

$214