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Cheap flights from Sioux City to Washington, D.C. from $324

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux City to Washington, D.C. departing on 5/2. 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 Sioux City to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:55 pm - 9:06 pm
SUX
-
DCA
7h 11m
1 stop
United Airlines Logo
1:00 pm - 6:06 pm
DCA
-
SUX
6h 06m
1 stop
$324United Airlines
Sat, May 2 - Wed, May 6
United Airlines Logo
12:55 pm - 9:02 pm
SUX
-
BWI
7h 07m
1 stop
United Airlines Logo
11:00 am - 6:06 pm
BWI
-
SUX
8h 06m
1 stop
$324United Airlines
Sat, May 2 - Wed, May 6
United Airlines Logo
12:55 pm - 7:28 pm
SUX
-
IAD
5h 33m
1 stop
United Airlines Logo
1:10 pm - 6:06 pm
IAD
-
SUX
5h 56m
1 stop
$324United Airlines
Sat, May 2 - Wed, May 6
United Airlines Logo
12:55 pm - 7:05 pm
SUX
-
DCA
5h 10m
1 stop
United Airlines Logo
1:00 pm - 6:06 pm
DCA
-
SUX
6h 06m
1 stop
$364United Airlines
Thu, Apr 30 - Thu, May 7
United Airlines Logo
12:55 pm - 7:05 pm
SUX
-
DCA
5h 10m
1 stop
United Airlines Logo
2:00 pm - 6:06 pm
DCA
-
SUX
5h 06m
1 stop
$396United Airlines
Mon, May 11 - Wed, May 13
United Airlines Logo
12:55 pm - 9:02 pm
SUX
-
BWI
7h 07m
1 stop
United Airlines Logo
7:05 pm - 6:06 pm
BWI
-
SUX
24h 01m
1 stop
$452United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
12:55 pm - 9:02 pm
SUX
-
BWI
7h 07m
1 stop
United Airlines Logo
11:00 am - 6:06 pm
BWI
-
SUX
8h 06m
1 stop
$458United Airlines
Thu, Apr 30 - Thu, May 7
United Airlines Logo
6:00 am - 5:28 pm
SUX
-
BWI
10h 28m
2 stops
United Airlines Logo
11:00 am - 6:06 pm
BWI
-
SUX
8h 06m
1 stop
$514United Airlines
Thu, Apr 30 - Thu, May 7
United Airlines Logo
12:55 pm - 8:15 pm
SUX
-
DCA
6h 20m
1 stop
United Airlines Logo
11:55 am - 5:56 pm
DCA
-
SUX
7h 01m
1 stop
$526United Airlines
Tue, Apr 21 - Thu, Apr 23
United Airlines Logo
12:55 pm - 7:28 pm
SUX
-
IAD
5h 33m
1 stop
United Airlines Logo
10:08 am - 6:06 pm
IAD
-
SUX
8h 58m
1 stop
$526United Airlines
Thu, Apr 30 - Thu, May 7

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

Our best United Airlines deals on Sioux City to Washington, D.C. flight tickets
United Airlines
May 2
SUX12:55 pmSioux City Sioux Gateway
5h 33m
1 stop
IAD7:28 pmWashington, D.C. Dulles Intl
May 6
IAD1:10 pmWashington, D.C. Dulles Intl
5h 56m
1 stop
SUX6:06 pmSioux City Sioux Gateway
$324
United Airlines
Apr 30
SUX12:55 pmSioux City Sioux Gateway
5h 10m
1 stop
DCA7:05 pmWashington, D.C. Reagan-National
May 7
DCA1:00 pmWashington, D.C. Reagan-National
6h 06m
1 stop
SUX6:06 pmSioux City Sioux Gateway
$364
United Airlines
May 11
SUX12:55 pmSioux City Sioux Gateway
5h 10m
1 stop
DCA7:05 pmWashington, D.C. Reagan-National
May 13
DCA2:00 pmWashington, D.C. Reagan-National
5h 06m
1 stop
SUX6:06 pmSioux City Sioux Gateway
$396

momondo Fare Finder

 
Customize your flight search to find flights from Sioux City to Washington, D.C. 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 April 3, 2026.
Use the filters below to find and compare flights from Sioux City to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Sat 5/2

12:55 pm-9:06 pm

1 stop7h 11m

Washington, D.C. Reagan-National

Wed 5/6

1:00 pm-6:06 pm

1 stop6h 06m

$324

Sioux CityBaltimore

SUX - BWI

SUXBWI

Sioux City Sioux Gateway

Sat 5/2

12:55 pm-9:02 pm

1 stop7h 07m

Baltimore/Washington

Wed 5/6

11:00 am-6:06 pm

1 stop8h 06m

$324

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Sat 5/2

12:55 pm-7:28 pm

1 stop5h 33m

Washington, D.C. Dulles Intl

Wed 5/6

1:10 pm-6:06 pm

1 stop5h 56m

$324

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Thu 4/30

12:55 pm-7:05 pm

1 stop5h 10m

Washington, D.C. Reagan-National

Thu 5/7

1:00 pm-6:06 pm

1 stop6h 06m

$364
Quickest round-trip

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Mon 5/11

12:55 pm-7:05 pm

1 stop5h 10m

Washington, D.C. Reagan-National

Wed 5/13

2:00 pm-6:06 pm

1 stop5h 06m

$396

Sioux CityBaltimore

SUX - BWI

SUXBWI

Sioux City Sioux Gateway

Sat 5/2

12:55 pm-9:02 pm

1 stop7h 07m

Baltimore/Washington

Tue 5/5

7:05 pm-6:06 pm

1 stop24h 01m

$452

Sioux CityBaltimore

SUX - BWI

SUXBWI

Sioux City Sioux Gateway

Thu 4/30

12:55 pm-9:02 pm

1 stop7h 07m

Baltimore/Washington

Thu 5/7

11:00 am-6:06 pm

1 stop8h 06m

$458

Sioux CityBaltimore

SUX - BWI

SUXBWI

Sioux City Sioux Gateway

Thu 4/30

6:00 am-5:28 pm

2 stops10h 28m

Baltimore/Washington

Thu 5/7

11:00 am-6:06 pm

1 stop8h 06m

$514

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Tue 4/21

12:55 pm-8:15 pm

1 stop6h 20m

Washington, D.C. Reagan-National

Thu 4/23

11:55 am-5:56 pm

1 stop7h 01m

$526

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Thu 4/30

12:55 pm-7:28 pm

1 stop5h 33m

Washington, D.C. Dulles Intl

Thu 5/7

10:08 am-6:06 pm

1 stop8h 58m

$526

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Sioux City to Washington, D.C.

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 airlines fly to Washington, D.C.?

Delta, Southwest and United Airlines are the top three most popular airlines that fly to Washington, D.C. from Sioux City according to our data. Delta is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 5 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

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

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

Cheap Sioux City to Washington, D.C. (SUX to WAS) flight deals and tips

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

Fastest flight time

5h 14m

Direct flights

None
The fastest flight from Sioux City to Washington, D.C. takes 5h 14m
There are no direct flights from Sioux City to Washington, D.C.. There are no popular flight routes from Sioux City to Washington, D.C..
Search flight deals

Frequently asked questions about flying from Sioux City to Washington, D.C.

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

    A flight from Sioux City Sioux Gateway to Washington, D.C. will travel around 1041.1 mi. 5h 14m is a normal flight duration for this route.

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

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

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

    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 Sioux City Sioux Gateway Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The necessary travel and health documents for your Washington, D.C. 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.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Laurel
Colonial Beach
Gaithersburg
Towson
Silver Spring
Fredericksburg
Rockville
Tysons
Manassas
Linthicum Heights
Springfield
Bethesda
Fairfax
College Park

Why use momondo?

Why should I use momondo to find a flight deal from Sioux City to Washington, D.C.?

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 Washington, D.C. from Sioux City.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Sioux City with this policy.

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

momondo helps you find the best flight between Sioux City and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Washington, D.C. from Sioux City 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.

An easier way to manage your Washington, D.C. trip

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport