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Cheap flights from Sioux City to District of Columbia from $332

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 District of Columbia departing on 8/18. 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 Sioux City to District of Columbia

Cheap round-trip flights

United Airlines Logo
7:50 am - 2:16 pmSUX-DCA
5h 26m1 stop
United Airlines Logo
7:00 pm - 11:00 pmDCA-SUX
5h 00m1 stop
$369United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
6:51 pm - 5:22 amSUX-IAD
9h 31m1 stop
United Airlines Logo
6:50 pm - 11:00 pmIAD-SUX
5h 10m1 stop
$468United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
6:51 pm - 8:21 amSUX-DCA
12h 30m2 stops
United Airlines Logo
7:00 pm - 11:00 pmDCA-SUX
5h 00m1 stop
$472United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
6:53 pm - 11:27 amSUX-IAD
15h 34m1 stop
United Airlines Logo
6:40 pm - 10:57 pmIAD-SUX
5h 17m1 stop
$525United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
6:51 pm - 5:22 amSUX-IAD
9h 31m1 stop
United Airlines Logo
12:40 pm - 11:00 pmIAD-SUX
11h 20m2 stops
$531United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
10:10 am - 6:02 pmSUX-DCA
6h 52m1 stop
United Airlines Logo
5:00 pm - 10:57 pmDCA-SUX
6h 57m1 stop
$541United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
6:53 pm - 11:27 amSUX-IAD
15h 34m1 stop
United Airlines Logo
12:40 pm - 10:57 pmIAD-SUX
11h 17m2 stops
$623United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
6:53 pm - 10:27 amSUX-DCA
14h 34m2 stops
United Airlines Logo
5:00 pm - 10:57 pmDCA-SUX
6h 57m1 stop
$637United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
6:51 pm - 1:28 pmSUX-IAD
17h 37m1 stop
United Airlines Logo
8:15 am - 11:00 pmIAD-SUX
15h 45m2 stops
$709United Airlines
Find Deal
Fri, Oct 10 - Sat, Oct 18
United Airlines Logo
6:53 pm - 5:24 amSUX-IAD
9h 31m1 stop
United Airlines Logo
3:39 pm - 10:40 pmIAD-SUX
8h 01m1 stop
$840United Airlines
Find Deal
Sun, Aug 10 - Wed, Aug 13

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 14
SUX7:50 amSioux City Sioux Gateway
5h 26m
1 stop
DCA2:16 pmWashington, D.C. Reagan-National
Oct 21
DCA7:00 pmWashington, D.C. Reagan-National
5h 00m
1 stop
SUX11:00 pmSioux City Sioux Gateway
$369
Find similar
United Airlines
Oct 14
SUX6:51 pmSioux City Sioux Gateway
9h 31m
1 stop
IAD5:22 amWashington, D.C. Dulles Intl
Oct 21
IAD6:50 pmWashington, D.C. Dulles Intl
5h 10m
1 stop
SUX11:00 pmSioux City Sioux Gateway
$468
Find similar
United Airlines
Oct 14
SUX6:51 pmSioux City Sioux Gateway
12h 30m
2 stops
DCA8:21 amWashington, D.C. Reagan-National
Oct 21
DCA7:00 pmWashington, D.C. Reagan-National
5h 00m
1 stop
SUX11:00 pmSioux City Sioux Gateway
$472
Find similar

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 July 31, 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 10/14

7:50 am-2:16 pm

1 stop5h 26m

Washington, D.C. Reagan-National

Tue 10/21

7:00 pm-11:00 pm

1 stop5h 00m

$369

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Tue 10/14

6:51 pm-5:22 am

1 stop9h 31m

Washington, D.C. Dulles Intl

Tue 10/21

6:50 pm-11:00 pm

1 stop5h 10m

$468

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Tue 10/14

6:51 pm-8:21 am

2 stops12h 30m

Washington, D.C. Reagan-National

Tue 10/21

7:00 pm-11:00 pm

1 stop5h 00m

$472

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Fri 8/15

6:53 pm-11:27 am

1 stop15h 34m

Washington, D.C. Dulles Intl

Tue 8/19

6:40 pm-10:57 pm

1 stop5h 17m

$525

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Tue 10/14

6:51 pm-5:22 am

1 stop9h 31m

Washington, D.C. Dulles Intl

Tue 10/21

12:40 pm-11:00 pm

2 stops11h 20m

$531

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Fri 8/15

10:10 am-6:02 pm

1 stop6h 52m

Washington, D.C. Reagan-National

Tue 8/19

5:00 pm-10:57 pm

1 stop6h 57m

$541

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Fri 8/15

6:53 pm-11:27 am

1 stop15h 34m

Washington, D.C. Dulles Intl

Tue 8/19

12:40 pm-10:57 pm

2 stops11h 17m

$623

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Fri 8/15

6:53 pm-10:27 am

2 stops14h 34m

Washington, D.C. Reagan-National

Tue 8/19

5:00 pm-10:57 pm

1 stop6h 57m

$637

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Fri 10/10

6:51 pm-1:28 pm

1 stop17h 37m

Washington, D.C. Dulles Intl

Sat 10/18

8:15 am-11:00 pm

2 stops15h 45m

$709

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Sun 8/10

6:53 pm-5:24 am

1 stop9h 31m

Washington, D.C. Dulles Intl

Wed 8/13

3:39 pm-10:40 pm

1 stop8h 01m

$840

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest 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

Best Price Found

$332

Fastest flight time

4h 38m

Direct flights

None

Airports in District of Columbia

2 airports
The best one-way flight to District of Columbia from Sioux City in the past 72 hours is $332. The best round-trip flight deal from Sioux City to District of Columbia found on momondo in the last 72 hours is $369.
The fastest flight from Sioux City to District of Columbia takes 4h 38m
There are no direct flights from Sioux City to District of Columbia. Popular non-direct routes for this connection are Sioux City Sioux Gateway Airport - Washington, D.C. Dulles Intl Airport and Sioux City Sioux Gateway Airport - Washington, D.C. Reagan-National Airport.
There are 2 airports near District of Columbia: Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD)
Search flight deals

  • 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 many operators does momondo search for flights from Sioux City Sioux Gateway Airport to District of Columbia?

  • 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.

Best airlines flying from Sioux City to District of Columbia

Compare and see reviews for airlines that fly from Sioux City to District of Columbia with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $269Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights

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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