Cheap flights from Sioux City to District of Columbia from $323

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 10/7. 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

United Airlines Logo
7:50 am - 2:16 pmSUX-DCA
5h 26m1 stop
United Airlines Logo
5:00 pm - 11:00 pmDCA-SUX
7h 00m1 stop
$323United Airlines
Find Deal
Tue, Oct 7 - Sat, Oct 11
United Airlines Logo
7:45 am - 2:10 pmSUX-DCA
5h 25m1 stop
United Airlines Logo
5:00 pm - 10:59 pmDCA-SUX
6h 59m1 stop
$341United Airlines
Find Deal
Wed, Nov 12 - Sat, Nov 15
United Airlines Logo
12:45 pm - 6:52 pmSUX-DCA
5h 07m1 stop
United Airlines Logo
11:30 am - 5:32 pmDCA-SUX
7h 02m1 stop
$369United Airlines
Find Deal
Fri, Mar 6 - Tue, Mar 10
United Airlines Logo
12:45 pm - 7:35 amSUX-IAD
17h 50m2 stops
United Airlines Logo
1:05 pm - 5:32 pmIAD-SUX
5h 27m1 stop
$413United Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
United Airlines Logo
6:00 am - 5:09 amSUX-IAD
22h 09m1 stop
United Airlines Logo
1:05 pm - 5:32 pmIAD-SUX
5h 27m1 stop
$480United Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
United Airlines Logo
6:46 pm - 3:20 pmSUX-DCA
19h 34m2 stops
United Airlines Logo
5:00 pm - 10:59 pmDCA-SUX
6h 59m1 stop
$490United Airlines
Find Deal
Wed, Nov 12 - Sat, Nov 15
United Airlines Logo
12:45 pm - 7:35 amSUX-IAD
17h 50m2 stops
United Airlines Logo
10:05 pm - 4:32 pmIAD-SUX
19h 27m2 stops
$506United Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
United Airlines Logo
12:45 pm - 6:52 pmSUX-DCA
5h 07m1 stop
United Airlines Logo
6:30 am - 11:34 pmDCA-SUX
18h 04m3 stops
$508United Airlines
Find Deal
Fri, Mar 6 - Tue, Mar 10
United Airlines Logo
12:45 pm - 7:35 amSUX-IAD
17h 50m2 stops
United Airlines Logo
10:05 pm - 4:32 pmIAD-SUX
19h 27m2 stops
$517United Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
United Airlines Logo
12:45 pm - 6:52 pmSUX-DCA
5h 07m1 stop
United Airlines Logo
6:00 am - 5:32 pmDCA-SUX
12h 32m2 stops
$527United Airlines
Find Deal
Fri, Mar 6 - Tue, Mar 10

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
Oct 7
SUX7:50 amSioux City Sioux Gateway
5h 26m
1 stop
DCA2:16 pmWashington, D.C. Reagan-National
Oct 11
DCA5:00 pmWashington, D.C. Reagan-National
7h 00m
1 stop
SUX11:00 pmSioux City Sioux Gateway
United Airlines
Nov 12
SUX7:45 amSioux City Sioux Gateway
5h 25m
1 stop
DCA2:10 pmWashington, D.C. Reagan-National
Nov 15
DCA5:00 pmWashington, D.C. Reagan-National
6h 59m
1 stop
SUX10:59 pmSioux City Sioux Gateway
United Airlines
Mar 6
SUX12:45 pmSioux City Sioux Gateway
5h 07m
1 stop
DCA6:52 pmWashington, D.C. Reagan-National
Mar 10
DCA11:30 amWashington, D.C. Reagan-National
7h 02m
1 stop
SUX5:32 pmSioux City Sioux Gateway

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 September 24, 2025.
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

Tue 10/7

7:50 am-2:16 pm

1 stop5h 26m

Washington, D.C. Reagan-National

Sat 10/11

5:00 pm-11:00 pm

1 stop7h 00m

$323

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Wed 11/12

7:45 am-2:10 pm

1 stop5h 25m

Washington, D.C. Reagan-National

Sat 11/15

5:00 pm-10:59 pm

1 stop6h 59m

$341

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Fri 3/6

12:45 pm-6:52 pm

1 stop5h 07m

Washington, D.C. Reagan-National

Tue 3/10

11:30 am-5:32 pm

1 stop7h 02m

$369

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Wed 3/4

12:45 pm-7:35 am

2 stops17h 50m

Washington, D.C. Dulles Intl

Sat 3/7

1:05 pm-5:32 pm

1 stop5h 27m

$413

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Wed 3/4

6:00 am-5:09 am

1 stop22h 09m

Washington, D.C. Dulles Intl

Sat 3/7

1:05 pm-5:32 pm

1 stop5h 27m

$480

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Wed 11/12

6:46 pm-3:20 pm

2 stops19h 34m

Washington, D.C. Reagan-National

Sat 11/15

5:00 pm-10:59 pm

1 stop6h 59m

$490

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Wed 3/4

12:45 pm-7:35 am

2 stops17h 50m

Washington, D.C. Dulles Intl

Sat 3/7

10:05 pm-4:32 pm

2 stops19h 27m

$506

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Fri 3/6

12:45 pm-6:52 pm

1 stop5h 07m

Washington, D.C. Reagan-National

Tue 3/10

6:30 am-11:34 pm

3 stops18h 04m

$508

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Wed 3/4

12:45 pm-7:35 am

2 stops17h 50m

Washington, D.C. Dulles Intl

Sat 3/7

10:05 pm-4:32 pm

2 stops19h 27m

$517

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Fri 3/6

12:45 pm-6:52 pm

1 stop5h 07m

Washington, D.C. Reagan-National

Tue 3/10

6:00 am-5:32 pm

2 stops12h 32m

$527

Flights are sorted by cheapest round-trip flights first.

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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 is the cheapest day to depart on your flight to District of Columbia?

The cheapest day to depart on your flight to District of Columbia is on a Wednesday when prices can be found for as low as $459. This is often the case because there is less demand to fly during this day of the week. On the other hand, Tuesday is the most expensive day to depart from Sioux City because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $697.

What is the cheapest time of day to depart on your flight to District of Columbia?

Flying to District of Columbia from Sioux City at noon is the least expensive time of day to depart. momondo users have found prices as low as $385 when looking at flights departing at noon. Flights to District of Columbia are more costly in the morning, with an average ticket price of $486. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

Direct flights

None
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 10/24
Fri 10/31

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