Cheap flights from Sioux City to District of Columbia from $264

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 District of Columbia 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:55 pm - 8:15 pm
SUX
-
DCA
6h 20m
1 stop
United Airlines Logo
1:00 pm - 6:06 pm
DCA
-
SUX
6h 06m
1 stop
$264United Airlines
Sat, May 2 - Sun, May 10
United Airlines Logo
12:53 pm - 8:59 pm
SUX
-
DCA
7h 06m
1 stop
United Airlines Logo
12:00 pm - 5:41 pm
DCA
-
SUX
6h 41m
1 stop
$374United Airlines
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
12:53 pm - 8:59 pm
SUX
-
DCA
7h 06m
1 stop
United Airlines Logo
12:00 pm - 5:41 pm
DCA
-
SUX
6h 41m
1 stop
$419United Airlines
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
12:55 pm - 9:18 pm
SUX
-
IAD
7h 23m
1 stop
United Airlines Logo
8:12 pm - 10:41 am
IAD
-
SUX
15h 29m
1 stop
$442United Airlines
Sat, May 2 - Sun, May 10
United Airlines Logo
12:53 pm - 8:59 pm
SUX
-
DCA
7h 06m
1 stop
United Airlines Logo
4:11 pm - 11:41 pm
DCA
-
SUX
8h 30m
1 stop
$449United Airlines
Tue, Mar 10 - Sat, Mar 14
United Airlines Logo
12:53 pm - 8:37 pm
SUX
-
IAD
6h 44m
1 stop
United Airlines Logo
5:10 pm - 11:41 pm
IAD
-
SUX
7h 31m
1 stop
$449United Airlines
Tue, Mar 10 - Sat, Mar 14
United Airlines Logo
12:55 pm - 9:18 pm
SUX
-
IAD
7h 23m
1 stop
United Airlines Logo
8:15 am - 6:06 pm
IAD
-
SUX
10h 51m
2 stops
$453United Airlines
Sat, May 2 - Sun, May 10
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
$464United Airlines
Thu, Apr 2 - Sun, Apr 5
United Airlines Logo
12:53 pm - 6:29 am
SUX
-
IAD
16h 36m
2 stops
United Airlines Logo
1:15 pm - 5:41 pm
IAD
-
SUX
5h 26m
1 stop
$477United Airlines
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
12:53 pm - 11:59 pm
SUX
-
IAD
10h 06m
1 stop
United Airlines Logo
1:15 pm - 5:41 pm
IAD
-
SUX
5h 26m
1 stop
$480United Airlines
Sat, Mar 7 - Wed, Mar 11

United Airlines flights from Sioux City to District of Columbia

Our best United Airlines deals on Sioux City to District of Columbia flight tickets
United Airlines
May 2
SUX12:55 pmSioux City Sioux Gateway
6h 20m
1 stop
DCA8:15 pmWashington, D.C. Reagan-National
May 10
DCA1:00 pmWashington, D.C. Reagan-National
6h 06m
1 stop
SUX6:06 pmSioux City Sioux Gateway
$264
United Airlines
Mar 7
SUX12:53 pmSioux City Sioux Gateway
7h 06m
1 stop
DCA8:59 pmWashington, D.C. Reagan-National
Mar 11
DCA12:00 pmWashington, D.C. Reagan-National
6h 41m
1 stop
SUX5:41 pmSioux City Sioux Gateway
$374
United Airlines
Mar 7
SUX12:53 pmSioux City Sioux Gateway
7h 06m
1 stop
DCA8:59 pmWashington, D.C. Reagan-National
Mar 11
DCA12:00 pmWashington, D.C. Reagan-National
6h 41m
1 stop
SUX5:41 pmSioux City Sioux Gateway
$419

momondo Fare Finder

 
Customize your flight search to find flights from Sioux City to District of Columbia 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 25, 2026.
Use the filters below to find and compare flights from Sioux City to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Sat 5/2

12:55 pm-8:15 pm

1 stop6h 20m

Washington, D.C. Reagan-National

Sun 5/10

1:00 pm-6:06 pm

1 stop6h 06m

$264

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Sat 3/7

12:53 pm-8:59 pm

1 stop7h 06m

Washington, D.C. Reagan-National

Wed 3/11

12:00 pm-5:41 pm

1 stop6h 41m

$374

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Sat 3/7

12:53 pm-8:59 pm

1 stop7h 06m

Washington, D.C. Reagan-National

Wed 3/11

12:00 pm-5:41 pm

1 stop6h 41m

$419

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Sat 5/2

12:55 pm-9:18 pm

1 stop7h 23m

Washington, D.C. Dulles Intl

Sun 5/10

8:12 pm-10:41 am

1 stop15h 29m

$442

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

Sat 3/14

4:11 pm-11:41 pm

1 stop8h 30m

$449

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Tue 3/10

12:53 pm-8:37 pm

1 stop6h 44m

Washington, D.C. Dulles Intl

Sat 3/14

5:10 pm-11:41 pm

1 stop7h 31m

$449

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Sat 5/2

12:55 pm-9:18 pm

1 stop7h 23m

Washington, D.C. Dulles Intl

Sun 5/10

8:15 am-6:06 pm

2 stops10h 51m

$453

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Thu 4/2

12:55 pm-8:15 pm

1 stop6h 20m

Washington, D.C. Reagan-National

Sun 4/5

11:55 am-5:56 pm

1 stop7h 01m

$464

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Sat 3/7

12:53 pm-6:29 am

2 stops16h 36m

Washington, D.C. Dulles Intl

Wed 3/11

1:15 pm-5:41 pm

1 stop5h 26m

$477

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Sat 3/7

12:53 pm-11:59 pm

1 stop10h 06m

Washington, D.C. Dulles Intl

Wed 3/11

1:15 pm-5:41 pm

1 stop5h 26m

$480

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to District of Columbia from

How to get the cheapest flight ticket from Sioux City to District of Columbia

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 District of Columbia?

Delta, Southwest and United Airlines are the top three most popular airlines that fly to District of Columbia 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 District of Columbia. Keep in mind that there are 5 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

Cheap Sioux City to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sioux City to District of Columbia

Fastest flight time

5h 55m

Direct flights

None
The fastest flight from Sioux City to District of Columbia takes 5h 55m
There are no direct flights from Sioux City to District of Columbia. There are no popular flight routes from Sioux City to District of Columbia.
  • When did momondo last update prices for flights from Sioux City Sioux Gateway Airport to District of Columbia?

    Prices for flights from Sioux City Sioux Gateway Airport to District of Columbia are updated daily.

  • How old do you have to be to fly from Sioux City Sioux Gateway Airport to District of Columbia?

    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 Sioux City Sioux Gateway Airport to District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

    The required travel and health documents for your District of Columbia 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 District of Columbia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Sioux City to District of Columbia?

It is quick and easy to find Sioux City to District of Columbia 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 District of Columbia that suits you.

Can I find flights from Sioux City to District of Columbia with flexible booking policies on momondo?

Flights from Sioux City to District of Columbia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Sioux City to District of Columbia?

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 District of Columbia from Sioux City.

I’m not ready to book a flight from Sioux City to District of Columbia right now. Can momondo alert me if prices change?

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

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1 adult
Fri 3/27
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