Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Sioux City to Washington, D.C. from $242

This is the cheapest one-way 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 3/16. 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

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 Sioux City to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:53 pm - 8:59 pm
SUX
-
DCA
7h 06m
1 stop
United Airlines Logo
10:30 am - 5:41 pm
DCA
-
SUX
8h 11m
1 stop
$461United Airlines
Tue, Mar 10 - Thu, Mar 12
United Airlines Logo
12:53 pm - 8:59 pm
SUX
-
DCA
7h 06m
1 stop
United Airlines Logo
1:00 pm - 5:41 pm
DCA
-
SUX
5h 41m
1 stop
$534United Airlines
Wed, Mar 11 - Fri, Mar 13
United Airlines Logo
1:00 pm - 8:51 am
SUX
-
DCA
18h 51m
1 stop
United Airlines Logo
10:30 am - 5:41 pm
DCA
-
SUX
8h 11m
1 stop
$591United Airlines
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
6:00 am - 8:56 pm
SUX
-
DCA
13h 56m
2 stops
United Airlines Logo
10:30 am - 5:41 pm
DCA
-
SUX
8h 11m
1 stop
$631United Airlines
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
12:53 pm - 7:12 pm
SUX
-
DCA
5h 19m
1 stop
United Airlines Logo
8:00 am - 10:45 am
DCA
-
SUX
27h 45m
2 stops
$640United Airlines
Wed, Mar 11 - Fri, Mar 13
United Airlines Logo
6:30 pm - 4:59 pm
SUX
-
DCA
21h 29m
2 stops
United Airlines Logo
10:30 am - 5:41 pm
DCA
-
SUX
8h 11m
1 stop
$662United Airlines
Tue, Mar 10 - Thu, Mar 12
United Airlines Logo
1:00 pm - 11:50 pm
SUX
-
DCA
9h 50m
2 stops
United Airlines Logo
6:00 am - 5:41 pm
DCA
-
SUX
12h 41m
2 stops
$1,158United Airlines
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
6:10 am - 4:32 pm
SUX
-
DCA
9h 22m
2 stops
United Airlines Logo
9:05 am - 5:41 pm
DCA
-
SUX
9h 36m
2 stops
$1,691United Airlines
Tue, Mar 10 - Thu, Mar 12

United Airlines flights from Sioux City to Washington, D.C. Reagan-National Airport

Our best United Airlines deals on Sioux City to Washington, D.C. Reagan-National Airport flight tickets
United Airlines
Mar 10
SUX12:53 pmSioux City Sioux Gateway
7h 06m
1 stop
DCA8:59 pmWashington, D.C. Reagan-National
Mar 12
DCA10:30 amWashington, D.C. Reagan-National
8h 11m
1 stop
SUX5:41 pmSioux City Sioux Gateway
$461
United Airlines
Mar 11
SUX12:53 pmSioux City Sioux Gateway
7h 06m
1 stop
DCA8:59 pmWashington, D.C. Reagan-National
Mar 13
DCA1:00 pmWashington, D.C. Reagan-National
5h 41m
1 stop
SUX5:41 pmSioux City Sioux Gateway
$534
United Airlines
Feb 21
SUX1:00 pmSioux City Sioux Gateway
18h 51m
1 stop
DCA8:51 amWashington, D.C. Reagan-National
Feb 25
DCA10:30 amWashington, D.C. Reagan-National
8h 11m
1 stop
SUX5:41 pmSioux City Sioux Gateway
$591

momondo Fare Finder

 
Customize your flight search to find flights from Sioux City to Washington, D.C. Reagan-National Airport 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 February 10, 2026.
Use the filters below to find and compare flights from Sioux City to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Tue 3/10

12:53 pm-8:59 pm

1 stop7h 06m

Washington, D.C. Reagan-National

Thu 3/12

10:30 am-5:41 pm

1 stop8h 11m

$461

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Wed 3/11

12:53 pm-8:59 pm

1 stop7h 06m

Washington, D.C. Reagan-National

Fri 3/13

1:00 pm-5:41 pm

1 stop5h 41m

$534

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Sat 2/21

1:00 pm-8:51 am

1 stop18h 51m

Washington, D.C. Reagan-National

Wed 2/25

10:30 am-5:41 pm

1 stop8h 11m

$591

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Sat 2/21

6:00 am-8:56 pm

2 stops13h 56m

Washington, D.C. Reagan-National

Wed 2/25

10:30 am-5:41 pm

1 stop8h 11m

$631

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Wed 3/11

12:53 pm-7:12 pm

1 stop5h 19m

Washington, D.C. Reagan-National

Fri 3/13

8:00 am-10:45 am

2 stops27h 45m

$640

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Tue 3/10

6:30 pm-4:59 pm

2 stops21h 29m

Washington, D.C. Reagan-National

Thu 3/12

10:30 am-5:41 pm

1 stop8h 11m

$662

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Sat 2/21

1:00 pm-11:50 pm

2 stops9h 50m

Washington, D.C. Reagan-National

Wed 2/25

6:00 am-5:41 pm

2 stops12h 41m

$1,158

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Tue 3/10

6:10 am-4:32 pm

2 stops9h 22m

Washington, D.C. Reagan-National

Thu 3/12

9:05 am-5:41 pm

2 stops9h 36m

$1,691

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Mon 3/16

12:53 pm-7:12 pm

1 stop5h 19m

$242

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Fri 3/6

12:53 pm-8:59 pm

1 stop7h 06m

$275

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Sioux City to Washington, D.C. Reagan-National Airport

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 Sioux City Sioux Gateway to Washington, D.C. Reagan-National?

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

What airlines fly to Washington, D.C. Reagan-National Airport?

Delta, Southwest and American Airlines are the top three most popular airlines that fly to Washington, D.C. Reagan-National Airport 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. Reagan-National Airport. Keep in mind that there are 5 different airlines that fly to Washington, D.C. Reagan-National Airport 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. Reagan-National Airport

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

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

Fastest flight time

5h 19m

Direct flights

None
The fastest flight from Sioux City to Washington, D.C. Reagan-National Airport takes 5h 19m
There are no direct flights from Sioux City to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Sioux City to Washington, D.C. Reagan-National Airport.
Search flight deals

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

    The straight-line distance from Sioux City Sioux Gateway to Washington, D.C. Reagan-National is 1042.2 mi. 5h 19m 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. Reagan-National Airport?

    Prices for flights from Sioux City Sioux Gateway Airport to Washington, D.C. Reagan-National Airport are refreshed on a daily basis.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sioux City Sioux Gateway Airport to Washington, D.C. Reagan-National Airport.

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

    The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. It is always advisable to seek 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
Tysons
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Linthicum Heights
Bethesda
Glen Burnie

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?

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

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

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 Washington, D.C. from Sioux City.

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

Yes momondo offers price alerts on flights to Washington, D.C. from Sioux City. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Washington, D.C. Reagan-National Airport 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
Thu 3/12
Thu 3/19
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.