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Cheap flights from Washington, D.C. Reagan-National Airport to Sioux City from $312

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Sioux City departing on 6/17. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Sioux City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:57 am - 5:54 pm
DCA
-
SUX
6h 57m
1 stop
United Airlines Logo
7:53 am - 3:52 pm
SUX
-
DCA
6h 59m
1 stop
$379United Airlines
Sun, May 24 - Tue, Jun 2
United Airlines Logo
11:57 am - 5:54 pm
DCA
-
SUX
6h 57m
1 stop
United Airlines Logo
7:53 am - 2:22 pm
SUX
-
DCA
5h 29m
1 stop
$415United Airlines
Mon, Jun 1 - Tue, Jun 9
United Airlines Logo
11:57 am - 5:54 pm
DCA
-
SUX
6h 57m
1 stop
United Airlines Logo
7:53 am - 2:22 pm
SUX
-
DCA
5h 29m
1 stop
$454United Airlines
Sun, May 24 - Wed, Jun 3
United Airlines Logo
4:11 pm - 11:32 pm
DCA
-
SUX
8h 21m
1 stop
United Airlines Logo
12:55 pm - 7:05 pm
SUX
-
DCA
5h 10m
1 stop
$629United Airlines
Fri, May 15 - Tue, May 19
United Airlines Logo
11:55 am - 6:06 pm
DCA
-
SUX
7h 11m
1 stop
United Airlines Logo
6:42 pm - 2:59 pm
SUX
-
DCA
19h 17m
1 stop
$635United Airlines
Mon, May 11 - Fri, May 15
United Airlines Logo
2:00 pm - 5:54 pm
DCA
-
SUX
4h 54m
1 stop
United Airlines Logo
7:53 am - 8:54 am
SUX
-
DCA
24h 01m
1 stop
$663United Airlines
Thu, May 21 - Tue, May 26
United Airlines Logo
1:00 pm - 5:54 pm
DCA
-
SUX
5h 54m
1 stop
United Airlines Logo
7:53 am - 9:53 pm
SUX
-
DCA
13h 00m
2 stops
$672United Airlines
Thu, May 28 - Fri, Jun 5
United Airlines Logo
8:30 am - 5:54 pm
DCA
-
SUX
10h 24m
2 stops
United Airlines Logo
7:53 am - 3:52 pm
SUX
-
DCA
6h 59m
1 stop
$680United Airlines
Sun, May 24 - Tue, Jun 2
United Airlines Logo
11:57 am - 5:54 pm
DCA
-
SUX
6h 57m
1 stop
United Airlines Logo
9:03 am - 3:38 pm
SUX
-
DCA
5h 35m
1 stop
$807United Airlines
Thu, Aug 6 - Wed, Aug 12
United Airlines Logo
2:00 pm - 6:06 pm
DCA
-
SUX
5h 06m
1 stop
United Airlines Logo
12:55 pm - 9:06 pm
SUX
-
DCA
7h 11m
1 stop
$818United Airlines
Wed, May 13 - Sun, May 17

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

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Sioux City flight tickets
United Airlines
May 24
DCA11:57 amWashington, D.C. Reagan-National
6h 57m
1 stop
SUX5:54 pmSioux City Sioux Gateway
Jun 2
SUX7:53 amSioux City Sioux Gateway
6h 59m
1 stop
DCA3:52 pmWashington, D.C. Reagan-National
$379
United Airlines
Jun 1
DCA11:57 amWashington, D.C. Reagan-National
6h 57m
1 stop
SUX5:54 pmSioux City Sioux Gateway
Jun 9
SUX7:53 amSioux City Sioux Gateway
5h 29m
1 stop
DCA2:22 pmWashington, D.C. Reagan-National
$415
United Airlines
May 9
DCA1:00 pmWashington, D.C. Reagan-National
6h 06m
1 stop
SUX6:06 pmSioux City Sioux Gateway
May 16
SUX12:55 pmSioux City Sioux Gateway
7h 11m
1 stop
DCA9:06 pmWashington, D.C. Reagan-National
$429

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport to Sioux City 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 30, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Sioux City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Sun 5/24

11:57 am-5:54 pm

1 stop6h 57m

Sioux City Sioux Gateway

Tue 6/2

7:53 am-3:52 pm

1 stop6h 59m

$379

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Mon 6/1

11:57 am-5:54 pm

1 stop6h 57m

Sioux City Sioux Gateway

Tue 6/9

7:53 am-2:22 pm

1 stop5h 29m

$415

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Sun 5/24

11:57 am-5:54 pm

1 stop6h 57m

Sioux City Sioux Gateway

Wed 6/3

7:53 am-2:22 pm

1 stop5h 29m

$454

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Fri 5/15

4:11 pm-11:32 pm

1 stop8h 21m

Sioux City Sioux Gateway

Tue 5/19

12:55 pm-7:05 pm

1 stop5h 10m

$629

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Mon 5/11

11:55 am-6:06 pm

1 stop7h 11m

Sioux City Sioux Gateway

Fri 5/15

6:42 pm-2:59 pm

1 stop19h 17m

$635

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Thu 5/21

2:00 pm-5:54 pm

1 stop4h 54m

Sioux City Sioux Gateway

Tue 5/26

7:53 am-8:54 am

1 stop24h 01m

$663

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Thu 5/28

1:00 pm-5:54 pm

1 stop5h 54m

Sioux City Sioux Gateway

Fri 6/5

7:53 am-9:53 pm

2 stops13h 00m

$672

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Sun 5/24

8:30 am-5:54 pm

2 stops10h 24m

Sioux City Sioux Gateway

Tue 6/2

7:53 am-3:52 pm

1 stop6h 59m

$680

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Thu 8/6

11:57 am-5:54 pm

1 stop6h 57m

Sioux City Sioux Gateway

Wed 8/12

9:03 am-3:38 pm

1 stop5h 35m

$807
Quickest round-trip

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Wed 5/13

2:00 pm-6:06 pm

1 stop5h 06m

Sioux City Sioux Gateway

Sun 5/17

12:55 pm-9:06 pm

1 stop7h 11m

$818

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
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See travel insights to Sioux City from

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

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

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

What airlines fly to Sioux City?

Delta, Southwest and American Airlines are the top three most popular airlines that fly to Sioux City from Washington, D.C. Reagan-National Airport 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 Sioux City. Keep in mind that there are 5 different airlines that fly to Sioux City on a routine basis, so you have a few additional options to choose from.

When to book flights from Washington, D.C. Reagan-National Airport to Sioux City

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

Cheap Washington, D.C. Reagan-National Airport to Sioux City (DCA to SUX) flight deals and tips

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

Fastest flight time

5h 54m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Sioux City takes 5h 54m
There are no direct flights from Washington, D.C. Reagan-National Airport to Sioux City. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Sioux City.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Sioux City

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

    The straight-line distance from Washington, D.C. Reagan-National to Sioux City Sioux Gateway is 1042.2 mi. In terms of flight time, this usually takes a little over 5h 54m.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to Sioux City Sioux Gateway Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Sioux City Sioux Gateway Airport?

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

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

  • What documentation or ID do you need to fly to Sioux City Sioux Gateway Airport?

    The required travel and health documents for your Sioux City Sioux Gateway Airport 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 Sioux City Sioux Gateway Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Washington, D.C. Reagan-National Airport to Sioux City?

Best airlines flying from Washington, D.C. Reagan-National Airport to Sioux City

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Sioux City with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $243Free CancellationRating
7.4
9,677 reviews
Search United Airlines flights

Traveling to a place near Sioux City?

Book flights to Sioux City if you plan to visit one of these locations
Norfolk

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We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Sioux City for you.

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

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

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

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