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Cheap flights from Washington, D.C. Dulles Intl Airport to Sioux City from $355

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Sioux City departing on 9/25. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Sioux City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
1:10 pm - 6:06 pm
IAD
-
SUX
5h 56m
1 stop
United Airlines Logo
12:55 pm - 7:28 pm
SUX
-
IAD
5h 33m
1 stop
$511United Airlines
Wed, May 6 - Fri, May 8
United Airlines Logo
1:10 pm - 6:06 pm
IAD
-
SUX
5h 56m
1 stop
United Airlines Logo
12:55 pm - 11:29 am
SUX
-
IAD
21h 34m
2 stops
$580United Airlines
Wed, May 6 - Fri, May 8
United Airlines Logo
3:15 pm - 6:06 pm
IAD
-
SUX
27h 51m
1 stop
United Airlines Logo
7:53 am - 12:45 am
SUX
-
IAD
15h 52m
1 stop
$607United Airlines
Wed, May 13 - Mon, May 25
United Airlines Logo
8:12 pm - 10:46 am
IAD
-
SUX
15h 34m
1 stop
United Airlines Logo
12:55 pm - 9:04 pm
SUX
-
IAD
7h 09m
1 stop
$615United Airlines
Tue, Apr 14 - Sat, Apr 18
United Airlines Logo
10:30 pm - 6:06 pm
IAD
-
SUX
20h 36m
1 stop
United Airlines Logo
7:53 am - 7:02 pm
SUX
-
IAD
10h 09m
1 stop
$618United Airlines
Wed, May 13 - Thu, May 21
United Airlines Logo
10:30 pm - 6:06 pm
IAD
-
SUX
20h 36m
1 stop
United Airlines Logo
7:53 am - 9:19 pm
SUX
-
IAD
12h 26m
2 stops
$642United Airlines
Wed, May 13 - Mon, May 25
United Airlines Logo
3:15 pm - 6:06 pm
IAD
-
SUX
27h 51m
1 stop
United Airlines Logo
6:30 pm - 1:26 pm
SUX
-
IAD
17h 56m
1 stop
$653United Airlines
Wed, May 13 - Fri, May 22
United Airlines Logo
10:32 pm - 6:06 pm
IAD
-
SUX
20h 34m
2 stops
United Airlines Logo
7:53 am - 12:45 am
SUX
-
IAD
15h 52m
1 stop
$664United Airlines
Wed, May 13 - Thu, May 21
United Airlines Logo
12:40 pm - 10:46 am
IAD
-
SUX
23h 06m
2 stops
United Airlines Logo
12:55 pm - 7:23 pm
SUX
-
IAD
5h 28m
1 stop
$668United Airlines
Tue, Apr 14 - Sat, Apr 18
United Airlines Logo
3:15 pm - 6:06 pm
IAD
-
SUX
27h 51m
1 stop
United Airlines Logo
6:30 pm - 11:41 am
SUX
-
IAD
16h 11m
1 stop
$672United Airlines
Wed, May 13 - Sun, May 24

United Airlines flights from Washington, D.C. Dulles Intl Airport to Sioux City

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Sioux City flight tickets
United Airlines
Apr 25
IAD1:10 pmWashington, D.C. Dulles Intl
5h 46m
1 stop
SUX5:56 pmSioux City Sioux Gateway
May 1
SUX12:55 pmSioux City Sioux Gateway
7h 23m
1 stop
IAD9:18 pmWashington, D.C. Dulles Intl
$413
United Airlines
May 6
IAD1:10 pmWashington, D.C. Dulles Intl
5h 56m
1 stop
SUX6:06 pmSioux City Sioux Gateway
May 8
SUX12:55 pmSioux City Sioux Gateway
5h 33m
1 stop
IAD7:28 pmWashington, D.C. Dulles Intl
$511
United Airlines
May 6
IAD1:10 pmWashington, D.C. Dulles Intl
5h 56m
1 stop
SUX6:06 pmSioux City Sioux Gateway
May 8
SUX12:55 pmSioux City Sioux Gateway
21h 34m
2 stops
IAD11:29 amWashington, D.C. Dulles Intl
$580

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 March 31, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Sioux City that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Wed 5/6

1:10 pm-6:06 pm

1 stop5h 56m

Sioux City Sioux Gateway

Fri 5/8

12:55 pm-7:28 pm

1 stop5h 33m

$511

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Wed 5/6

1:10 pm-6:06 pm

1 stop5h 56m

Sioux City Sioux Gateway

Fri 5/8

12:55 pm-11:29 am

2 stops21h 34m

$580

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Wed 5/13

3:15 pm-6:06 pm

1 stop27h 51m

Sioux City Sioux Gateway

Mon 5/25

7:53 am-12:45 am

1 stop15h 52m

$607

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Tue 4/14

8:12 pm-10:46 am

1 stop15h 34m

Sioux City Sioux Gateway

Sat 4/18

12:55 pm-9:04 pm

1 stop7h 09m

$615

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Wed 5/13

10:30 pm-6:06 pm

1 stop20h 36m

Sioux City Sioux Gateway

Thu 5/21

7:53 am-7:02 pm

1 stop10h 09m

$618

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Wed 5/13

10:30 pm-6:06 pm

1 stop20h 36m

Sioux City Sioux Gateway

Mon 5/25

7:53 am-9:19 pm

2 stops12h 26m

$642

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Wed 5/13

3:15 pm-6:06 pm

1 stop27h 51m

Sioux City Sioux Gateway

Fri 5/22

6:30 pm-1:26 pm

1 stop17h 56m

$653

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Wed 5/13

10:32 pm-6:06 pm

2 stops20h 34m

Sioux City Sioux Gateway

Thu 5/21

7:53 am-12:45 am

1 stop15h 52m

$664

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Tue 4/14

12:40 pm-10:46 am

2 stops23h 06m

Sioux City Sioux Gateway

Sat 4/18

12:55 pm-7:23 pm

1 stop5h 28m

$668

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Wed 5/13

3:15 pm-6:06 pm

1 stop27h 51m

Sioux City Sioux Gateway

Sun 5/24

6:30 pm-11:41 am

1 stop16h 11m

$672

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Sioux City from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport 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 airline that flies from Washington, D.C. Dulles Intl to Sioux City Sioux Gateway?

United Airlines is the most popular carrier operating from Washington, D.C. Dulles Intl to Sioux City Sioux Gateway

What airlines fly to Sioux City?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Sioux City from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Sioux City. Keep in mind that there are 3 different airlines that fly to Sioux City on a routine basis, so you have a few additional options to choose from.

When to book flights from Washington, D.C. Dulles Intl Airport to Sioux City

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

Cheap Washington, D.C. Dulles Intl Airport to Sioux City (IAD to SUX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Sioux City

Fastest flight time

5h 56m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Sioux City takes 5h 56m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Sioux City. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Sioux City.
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Sioux City Sioux Gateway by plane?

    Sioux City Sioux Gateway is 1019.1 mi away from Washington, D.C. Dulles Intl. Typically, this will take 5h 56m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Sioux City Sioux Gateway Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Sioux City Sioux Gateway Airport are updated daily.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Sioux City Sioux Gateway Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Sioux City Sioux Gateway Airport.

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

    The required travel and health documents for your Sioux City Sioux Gateway Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sioux City Sioux Gateway Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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 Washington, D.C. to Sioux City?

It is quick and easy to find Washington, D.C. to Sioux City flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sioux City that suits you.

Can I find flights from Washington, D.C. to Sioux City with flexible booking policies on momondo?

momondo does allow users to show only those flights to Sioux City from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Sioux City?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sioux City from Washington, D.C..

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

Price alerts on flights to Sioux City from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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