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Cheap flights from Denver to Sioux City from $153

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Sioux City departing on 1/8. 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

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Find the cheapest flights from Denver to Sioux City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:00 pm - 11:47 pm
DEN
-
SUX
1h 47mnonstop
United Airlines Logo
6:00 am - 6:57 am
SUX
-
DEN
1h 57mnonstop
$254United Airlines
Do, Jan 15 - So, Jan 18
United Airlines Logo
8:15 am - 11:05 am
DEN
-
SUX
1h 50mnonstop
United Airlines Logo
6:54 pm - 7:51 pm
SUX
-
DEN
1h 57mnonstop
$262United Airlines
Mi, Dez 31 - So, Jan 4
United Airlines Logo
3:35 pm - 6:13 pm
DEN
-
SUX
1h 38mnonstop
United Airlines Logo
11:48 am - 12:45 pm
SUX
-
DEN
1h 57mnonstop
$310United Airlines
Sa, Dez 27 - Mi, Dez 31
United Airlines Logo
3:35 pm - 6:13 pm
DEN
-
SUX
1h 38mnonstop
United Airlines Logo
6:54 pm - 7:51 pm
SUX
-
DEN
1h 57mnonstop
$360United Airlines
Do, Dez 25 - Di, Dez 30
United Airlines Logo
7:50 am - 5:28 pm
DEN
-
SUX
8h 38m1 stop
United Airlines Logo
6:00 am - 6:57 am
SUX
-
DEN
1h 57mnonstop
$368United Airlines
Mi, Jan 14 - So, Jan 18
United Airlines Logo
8:25 pm - 5:28 pm
DEN
-
SUX
20h 03m1 stop
United Airlines Logo
6:00 am - 6:57 am
SUX
-
DEN
1h 57mnonstop
$376United Airlines
Do, Jan 15 - So, Jan 18
United Airlines Logo
9:00 pm - 11:47 pm
DEN
-
SUX
1h 47mnonstop
United Airlines Logo
12:45 pm - 2:51 pm
SUX
-
DEN
27h 06m1 stop
$377United Airlines
Do, Jan 15 - Sa, Jan 17
United Airlines Logo
9:00 pm - 11:47 pm
DEN
-
SUX
1h 47mnonstop
United Airlines Logo
12:45 pm - 10:00 am
SUX
-
DEN
22h 15m2 stops
$387United Airlines
Do, Jan 15 - Sa, Jan 17
United Airlines Logo
8:05 am - 10:55 am
DEN
-
SUX
1h 50mnonstop
United Airlines Logo
12:45 pm - 10:35 am
SUX
-
DEN
22h 50m1 stop
$397United Airlines
Do, Jan 8 - Sa, Jan 10
United Airlines Logo
8:26 pm - 11:15 pm
DEN
-
SUX
25h 49m1 stop
United Airlines Logo
6:54 pm - 7:51 pm
SUX
-
DEN
1h 57mnonstop
$398United Airlines
Mi, Dez 31 - So, Jan 4

United Airlines flights from Denver to Sioux City

Our best United Airlines deals on Denver to Sioux City flight tickets
United Airlines
Jan 15
DEN9:00 pmDenver Intl
1h 47m
SUX11:47 pmSioux City Sioux Gateway
Jan 18
SUX6:00 amSioux City Sioux Gateway
1h 57m
DEN6:57 amDenver Intl
$254
Find similar
United Airlines
Dec 31
DEN8:15 amDenver Intl
1h 50m
SUX11:05 amSioux City Sioux Gateway
Jan 4
SUX6:54 pmSioux City Sioux Gateway
1h 57m
DEN7:51 pmDenver Intl
$262
Find similar
United Airlines
Dec 27
DEN3:35 pmDenver Intl
1h 38m
SUX6:13 pmSioux City Sioux Gateway
Dec 31
SUX11:48 amSioux City Sioux Gateway
1h 57m
DEN12:45 pmDenver Intl
$310
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 Dezember 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

Do 1/15

9:00 pm-11:47 pm

Nonstop1h 47m

Sioux City Sioux Gateway

So 1/18

6:00 am-6:57 am

Nonstop1h 57m

$254

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Mi 12/31

8:15 am-11:05 am

Nonstop1h 50m

Sioux City Sioux Gateway

So 1/4

6:54 pm-7:51 pm

Nonstop1h 57m

$262

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Sa 12/27

3:35 pm-6:13 pm

Nonstop1h 38m

Sioux City Sioux Gateway

Mi 12/31

11:48 am-12:45 pm

Nonstop1h 57m

$310

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Do 12/25

3:35 pm-6:13 pm

Nonstop1h 38m

Sioux City Sioux Gateway

Di 12/30

6:54 pm-7:51 pm

Nonstop1h 57m

$360

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Mi 1/14

7:50 am-5:28 pm

1 stop8h 38m

Sioux City Sioux Gateway

So 1/18

6:00 am-6:57 am

Nonstop1h 57m

$368

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Do 1/15

8:25 pm-5:28 pm

1 stop20h 03m

Sioux City Sioux Gateway

So 1/18

6:00 am-6:57 am

Nonstop1h 57m

$376

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Do 1/15

9:00 pm-11:47 pm

Nonstop1h 47m

Sioux City Sioux Gateway

Sa 1/17

12:45 pm-2:51 pm

1 stop27h 06m

$377

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Do 1/15

9:00 pm-11:47 pm

Nonstop1h 47m

Sioux City Sioux Gateway

Sa 1/17

12:45 pm-10:00 am

2 stops22h 15m

$387

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Do 1/8

8:05 am-10:55 am

Nonstop1h 50m

Sioux City Sioux Gateway

Sa 1/10

12:45 pm-10:35 am

1 stop22h 50m

$397

DenverSioux City

DEN - SUX

DENSUX

Denver Intl

Mi 12/31

8:26 pm-11:15 pm

1 stop25h 49m

Sioux City Sioux Gateway

So 1/4

6:54 pm-7:51 pm

Nonstop1h 57m

$398

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 February. Flight prices, which tend to average around $288, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Sioux City, with average flight prices from Denver averaging around $296.

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 Sunday. momondo users have found tickets for Sunday departures for as low as $300. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Tuesday 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 $460.

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 morning when prices are $386 on average. Flights to Sioux City from Denver in the morning 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 38m

Direct flights

Wed, Thu, Fri, Sat and Sun

Airports in Sioux City

1 airport
The fastest flight from Denver to Sioux City takes 1h 38m
Direct flights go from Denver to Sioux City on Wednesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is United Airlines.
There is 1 airport in Sioux City. From Denver there are direct flights to 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 38m.

  • 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
9,092 reviews
Search United Airlines flights

  • United Airlines Flights From Denver to Sioux City

    United Airlines operates around 6 flights from Denver to Sioux City every week. The average price of these flights found in the last 72 hours has been $350, 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 9,092 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

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Mi 1/14
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