Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Denver to Sioux City from $214

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Sioux City departing on 11/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Denver to Sioux City

Cheap round-trip flights

United Airlines Logo
3:35 pm - 6:08 pmDEN-SUX
1h 33mnonstop
United Airlines Logo
6:46 pm - 7:34 pmSUX-DEN
1h 48mnonstop
$214United Airlines
Find Deal
Sat, Nov 1 - Mon, Nov 3
United Airlines Logo
3:35 pm - 6:08 pmDEN-SUX
1h 33mnonstop
United Airlines Logo
6:46 pm - 7:34 pmSUX-DEN
1h 48mnonstop
$262United Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
United Airlines Logo
3:40 pm - 6:14 pmDEN-SUX
1h 34mnonstop
United Airlines Logo
6:51 pm - 7:40 pmSUX-DEN
1h 49mnonstop
$304United Airlines
Find Deal
Sat, Oct 4 - Sun, Oct 5
United Airlines Logo
3:40 pm - 6:14 pmDEN-SUX
1h 34mnonstop
United Airlines Logo
6:51 pm - 7:40 pmSUX-DEN
1h 49mnonstop
$310United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
3:40 pm - 6:14 pmDEN-SUX
1h 34mnonstop
United Airlines Logo
6:51 pm - 7:40 pmSUX-DEN
1h 49mnonstop
$350United Airlines
Find Deal
Thu, Oct 2 - Fri, Oct 3
United Airlines Logo
8:30 pm - 11:59 pmDEN-SUX
26h 29m1 stop
United Airlines Logo
6:46 pm - 7:34 pmSUX-DEN
1h 48mnonstop
$357United Airlines
Find Deal
Sat, Nov 1 - Mon, Nov 3
United Airlines Logo
6:50 pm - 11:59 pmDEN-SUX
28h 09m2 stops
United Airlines Logo
6:46 pm - 7:34 pmSUX-DEN
1h 48mnonstop
$359United Airlines
Find Deal
Sat, Nov 1 - Mon, Nov 3
United Airlines Logo
3:35 pm - 6:10 pmDEN-SUX
1h 35mnonstop
United Airlines Logo
6:52 pm - 7:40 pmSUX-DEN
1h 48mnonstop
$362United Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14
United Airlines Logo
9:35 am - 11:00 pmDEN-SUX
12h 25m2 stops
United Airlines Logo
6:51 pm - 7:40 pmSUX-DEN
1h 49mnonstop
$403United Airlines
Find Deal
Sat, Oct 4 - Sun, Oct 5
United Airlines Logo
3:35 pm - 6:08 pmDEN-SUX
1h 33mnonstop
United Airlines Logo
7:45 am - 8:59 amSUX-DEN
26h 14m1 stop
$407United Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2

United Airlines flights from Denver to Sioux City

Our best United Airlines deals on Denver to Sioux City flight tickets
United Airlines
Nov 1
DEN3:35 pmDenver Intl
1h 33m
SUX6:08 pmSioux City Sioux Gateway
Nov 3
SUX6:46 pmSioux City Sioux Gateway
1h 48m
DEN7:34 pmDenver Intl
$214
Find similar
United Airlines
Oct 31
DEN3:35 pmDenver Intl
1h 33m
SUX6:08 pmSioux City Sioux Gateway
Nov 2
SUX6:46 pmSioux City Sioux Gateway
1h 48m
DEN7:34 pmDenver Intl
$262
Find similar
United Airlines
Oct 4
DEN3:40 pmDenver Intl
1h 34m
SUX6:14 pmSioux City Sioux Gateway
Oct 5
SUX6:51 pmSioux City Sioux Gateway
1h 49m
DEN7:40 pmDenver Intl
$304
Find similar

momondo Fare Finder

 
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, momondo users made 832,500 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Denver to Sioux City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Sat 11/1

3:35 pm-6:08 pm

Nonstop1h 33m

Sioux City Sioux Gateway

Mon 11/3

6:46 pm-7:34 pm

Nonstop1h 48m

$214

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Fri 10/31

3:35 pm-6:08 pm

Nonstop1h 33m

Sioux City Sioux Gateway

Sun 11/2

6:46 pm-7:34 pm

Nonstop1h 48m

$262

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Sat 10/4

3:40 pm-6:14 pm

Nonstop1h 34m

Sioux City Sioux Gateway

Sun 10/5

6:51 pm-7:40 pm

Nonstop1h 49m

$304

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Tue 9/30

3:40 pm-6:14 pm

Nonstop1h 34m

Sioux City Sioux Gateway

Sat 10/4

6:51 pm-7:40 pm

Nonstop1h 49m

$310

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Thu 10/2

3:40 pm-6:14 pm

Nonstop1h 34m

Sioux City Sioux Gateway

Fri 10/3

6:51 pm-7:40 pm

Nonstop1h 49m

$350

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Sat 11/1

8:30 pm-11:59 pm

1 stop26h 29m

Sioux City Sioux Gateway

Mon 11/3

6:46 pm-7:34 pm

Nonstop1h 48m

$357

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Sat 11/1

6:50 pm-11:59 pm

2 stops28h 09m

Sioux City Sioux Gateway

Mon 11/3

6:46 pm-7:34 pm

Nonstop1h 48m

$359

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Wed 12/10

3:35 pm-6:10 pm

Nonstop1h 35m

Sioux City Sioux Gateway

Sun 12/14

6:52 pm-7:40 pm

Nonstop1h 48m

$362

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Sat 10/4

9:35 am-11:00 pm

2 stops12h 25m

Sioux City Sioux Gateway

Sun 10/5

6:51 pm-7:40 pm

Nonstop1h 49m

$403

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Fri 10/31

3:35 pm-6:08 pm

Nonstop1h 33m

Sioux City Sioux Gateway

Sun 11/2

7:45 am-8:59 am

1 stop26h 14m

$407

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Sioux City from

How to get the cheapest flight ticket from Denver to Sioux City

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 Sioux City?

The cheapest month to fly to Sioux City from Denver is in December. Flight prices, which tend to average around $267, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Sioux City, with average flight prices from Denver averaging around $288.

What is the cheapest day to depart on your flight to Sioux City?

On average, the least expensive day to fly to Sioux City from Denver is on a Friday. momondo users have found tickets for Friday departures for as low as $265. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Denver because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $340.

What is the cheapest time of day to depart on your flight to Sioux City?

The cheapest time of day to fly to Sioux City is at noon when flights can be purchased for as low as $292. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $330 on average. Flights to Sioux City from Denver in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Denver Intl to Sioux City Sioux Gateway flight route?

Fly from Denver Intl to Sioux City Sioux Gateway for the best Denver Intl - Sioux City Sioux Gateway flight prices

What cabin class options are available on Denver Intl to Sioux City Sioux Gateway flights?

There is only 1 cabin class available to choose from on Denver Intl to Sioux City Sioux Gateway flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Denver to Sioux City flights?

No. A direct flight is the cheapest option for a flight between Denver to Sioux City.

When to book flights from Denver to Sioux City

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Sioux City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Sioux City (DEN to SUX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Sioux City

Fastest flight time

1h 33m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in Sioux City

1 airport
The fastest flight from Denver to Sioux City takes 1h 33m
Direct flights go from Denver to Sioux City on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Sioux City: Sioux City Sioux Gateway (SUX)
Search flight deals

  • How far is Denver Intl to Sioux City Sioux Gateway by plane?

    Denver Intl and Sioux City Sioux Gateway are 485.2 mi apart from one another. In terms of flight time, this usually takes a little over 1h 33m.

  • When did momondo last update prices for flights from Denver Intl Airport to Sioux City Sioux Gateway Airport?

    Prices for flights from Denver Intl Airport to Sioux City Sioux Gateway Airport were last updated today.

  • How many operators does momondo search for flights from Denver Intl Airport to Sioux City Sioux Gateway Airport?

  • How old do you have to be to fly from Denver Intl Airport to Sioux City Sioux Gateway Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Sioux City Sioux Gateway Airport.

  • What documentation or ID do you need to fly to Sioux City Sioux Gateway Airport?

    The necessary travel and health documents for your Sioux City Sioux Gateway Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Denver to Sioux City?

  • What is the most popular airline from Denver to Sioux City?

Best airlines flying from Denver to Sioux City

Compare and see reviews for airlines that fly from Denver to Sioux City with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $214Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights

  • United Airlines Flights From Denver to Sioux City

    United Airlines operates around 7 flights from Denver to Sioux City every week. The average price of these flights found in the last 72 hours has been $314, but momondo users have found United Airlines deals from Denver to Sioux City from as low as $214 round-trip. United Airlines has been scored 7.4/10 in 8,929 reviews.

Traveling to a place near Sioux City?

Book flights to Sioux City if you plan to visit one of these locations
Norfolk

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Sioux City?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Sioux City from Denver.

Can I find flights from Denver to Sioux City with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Sioux City from Denver with this policy.

How can momondo help me find flights from Denver to Sioux City?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Denver to Sioux City.

I’m not ready to book a flight from Denver to Sioux City right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Sioux City, momondo offers a useful price alert feature which will track prices for flights to Sioux City from Denver and alert you when they change.

An easier way to manage your Sioux City trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/15
Wed 10/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States