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Cheap flights from Washington, D.C. to Sioux City from $344

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Sioux City departing on 1/21. 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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0 bags

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Find the cheapest flights from Washington, D.C. to Sioux City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:10 pm - 11:47 pm
BWI
-
SUX
8h 37m1 stop
United Airlines Logo
6:00 am - 3:04 pm
SUX
-
BWI
8h 04m1 stop
$344United Airlines
mer., janv. 21 - sam., janv. 24
United Airlines Logo
10:30 am - 5:28 pm
DCA
-
SUX
7h 58m1 stop
United Airlines Logo
12:45 pm - 7:13 pm
SUX
-
DCA
5h 28m1 stop
$389United Airlines
sam., janv. 24 - mer., janv. 28
United Airlines Logo
12:59 pm - 5:28 pm
DCA
-
SUX
29h 29m2 stops
United Airlines Logo
12:45 pm - 7:13 pm
SUX
-
DCA
5h 28m1 stop
$449United Airlines
sam., janv. 24 - mer., janv. 28
United Airlines Logo
8:07 am - 11:47 pm
BWI
-
SUX
16h 40m2 stops
United Airlines Logo
6:00 am - 3:04 pm
SUX
-
BWI
8h 04m1 stop
$477United Airlines
mer., janv. 21 - sam., janv. 24
United Airlines Logo
8:20 am - 5:56 pm
IAD
-
SUX
10h 36m2 stops
United Airlines Logo
6:00 am - 7:35 am
SUX
-
IAD
24h 35m2 stops
$537United Airlines
mar., avr. 28 - sam., mai 2
United Airlines Logo
5:21 pm - 5:56 pm
IAD
-
SUX
25h 35m1 stop
United Airlines Logo
6:00 am - 7:35 am
SUX
-
IAD
24h 35m2 stops
$547United Airlines
mar., avr. 28 - sam., mai 2
United Airlines Logo
10:10 am - 5:56 pm
IAD
-
SUX
8h 46m1 stop
United Airlines Logo
12:45 pm - 5:13 pm
SUX
-
IAD
27h 28m1 stop
$602United Airlines
mar., avr. 28 - sam., mai 2
United Airlines Logo
8:07 am - 11:47 pm
BWI
-
SUX
16h 40m2 stops
United Airlines Logo
6:00 am - 11:20 am
SUX
-
BWI
28h 20m2 stops
$605United Airlines
mer., janv. 21 - sam., janv. 24
United Airlines Logo
4:11 pm - 10:55 am
DCA
-
SUX
19h 44m1 stop
United Airlines Logo
6:43 pm - 2:59 pm
SUX
-
DCA
19h 16m1 stop
$831United Airlines
mar., janv. 6 - jeu., janv. 8
United Airlines Logo
4:11 pm - 10:55 am
DCA
-
SUX
19h 44m1 stop
United Airlines Logo
6:43 pm - 2:59 pm
SUX
-
DCA
19h 16m1 stop
$866United Airlines
mar., janv. 6 - mer., janv. 7

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

Our best United Airlines deals on Washington, D.C. to Sioux City flight tickets
United Airlines
Jan 1
DCA5:00 pmWashington, D.C. Reagan-National
7h 15m
1 stop
SUX11:15 pmSioux City Sioux Gateway
Jan 20
SUX12:45 pmSioux City Sioux Gateway
5h 28m
1 stop
DCA7:13 pmWashington, D.C. Reagan-National
$334
Find similar
United Airlines
Jan 21
BWI4:10 pmBaltimore/Washington
8h 37m
1 stop
SUX11:47 pmSioux City Sioux Gateway
Jan 24
SUX6:00 amSioux City Sioux Gateway
8h 04m
1 stop
BWI3:04 pmBaltimore/Washington
$344
Find similar
United Airlines
Jan 3
DCA6:00 pmWashington, D.C. Reagan-National
6h 15m
1 stop
SUX11:15 pmSioux City Sioux Gateway
Jan 6
SUX12:45 pmSioux City Sioux Gateway
5h 28m
1 stop
DCA7:13 pmWashington, D.C. Reagan-National
$384
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 décembre 27, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Sioux City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

mer. 1/21

4:10 pm-11:47 pm

1 stop8h 37m

Sioux City Sioux Gateway

sam. 1/24

6:00 am-3:04 pm

1 stop8h 04m

$344

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

sam. 1/24

10:30 am-5:28 pm

1 stop7h 58m

Sioux City Sioux Gateway

mer. 1/28

12:45 pm-7:13 pm

1 stop5h 28m

$389

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

sam. 1/24

12:59 pm-5:28 pm

2 stops29h 29m

Sioux City Sioux Gateway

mer. 1/28

12:45 pm-7:13 pm

1 stop5h 28m

$449

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

mer. 1/21

8:07 am-11:47 pm

2 stops16h 40m

Sioux City Sioux Gateway

sam. 1/24

6:00 am-3:04 pm

1 stop8h 04m

$477

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

mar. 4/28

8:20 am-5:56 pm

2 stops10h 36m

Sioux City Sioux Gateway

sam. 5/2

6:00 am-7:35 am

2 stops24h 35m

$537

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

mar. 4/28

5:21 pm-5:56 pm

1 stop25h 35m

Sioux City Sioux Gateway

sam. 5/2

6:00 am-7:35 am

2 stops24h 35m

$547

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

mar. 4/28

10:10 am-5:56 pm

1 stop8h 46m

Sioux City Sioux Gateway

sam. 5/2

12:45 pm-5:13 pm

1 stop27h 28m

$602

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

mer. 1/21

8:07 am-11:47 pm

2 stops16h 40m

Sioux City Sioux Gateway

sam. 1/24

6:00 am-11:20 am

2 stops28h 20m

$605

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

mar. 1/6

4:11 pm-10:55 am

1 stop19h 44m

Sioux City Sioux Gateway

jeu. 1/8

6:43 pm-2:59 pm

1 stop19h 16m

$831

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

mar. 1/6

4:11 pm-10:55 am

1 stop19h 44m

Sioux City Sioux Gateway

mer. 1/7

6:43 pm-2:59 pm

1 stop19h 16m

$866

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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. 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. to Sioux City Sioux Gateway?

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

What airlines fly to Sioux City?

Delta, Southwest and United Airlines are the top three most popular airlines that fly to Sioux City from Washington, D.C. according to our data. Delta is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Sioux City. Keep in mind that there are 4 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. to Sioux City

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Sioux City (WAS to SUX) flight deals and tips

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

Fastest flight time

5h 15m

Direct flights

None
The fastest flight from Washington, D.C. to Sioux City takes 5h 15m
There are no direct flights from Washington, D.C. to Sioux City. There are no popular flight routes from Washington, D.C. to Sioux City.
Search flight deals

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

    A flight from Washington, D.C. to Sioux City Sioux Gateway will travel around 1041.1 mi. In terms of flight time, this usually takes a little over 5h 15m.

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

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

  • How many operators does momondo search for flights from Washington, D.C. to Sioux City Sioux Gateway Airport?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. 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.

  • What is the most popular airline from Washington, D.C. to Sioux City?

Best airlines flying from Washington, D.C. to Sioux City

Compare and see reviews for airlines that fly from Washington, D.C. to Sioux City with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $263Free CancellationRating
7.4
9,116 reviews
Search United Airlines flights

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?

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 Washington, D.C..

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

All flight searches from Washington, D.C. to Sioux City on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Sioux City from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Washington, D.C. to Sioux City now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sioux City and let you know when they change.

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