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$226+ Cheap flights from Washington, D.C. (WAS) to Sioux City (SUX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SUX
Jun 29 — Jul 61
Mon 6/29
Mon 7/6
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Sioux City

Cheapest flights from Washington, D.C. to Sioux City
Explore the most affordable flight options available from Washington, D.C. to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 30, 2026.

This United Airlines deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:00 pm
DCA
-
SUX
1 stop4h 54m
United Airlines
Thu 6/48:08 am
SUX
-
DCA
1 stop5h 14m
United Airlines
Deal found 5/27$454
This United Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:23 pm
BWI
-
SUX
1 stop8h 18m
United Airlines
Tue 7/288:10 am
SUX
-
BWI
1 stop4h 47m
United Airlines
Deal found 5/28$534
This United Airlines deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/64:23 pm
BWI
-
SUX
1 stop8h 18m
United Airlines
Wed 8/1211:30 am
SUX
-
BWI
1 stop7h 04m
United Airlines
Deal found 5/29$568
This United Airlines deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/301:25 pm
IAD
-
SUX
1 stop5h 29m
United Airlines
Thu 6/411:32 am
SUX
-
IAD
1 stop6h 53m
United Airlines
Deal found 5/27$576
This United Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/182:05 pm
DCA
-
SUX
1 stop4h 48m
United Airlines
Sun 7/268:10 am
SUX
-
DCA
1 stop25h 51m
United Airlines
Deal found 5/26$577
This United Airlines deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/61:00 pm
DCA
-
SUX
1 stop5h 53m
United Airlines
Wed 8/127:45 am
SUX
-
DCA
1 stop6h 57m
United Airlines
Deal found 5/29$600
This United Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2510:20 pm
IAD
-
SUX
2 stops13h 37m
United Airlines
Tue 7/288:10 am
SUX
-
IAD
1 stop5h 02m
United Airlines
Deal found 5/28$607
This United Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2312:55 pm
BWI
-
SUX
2 stops23h 02m
United Airlines
Tue 7/288:10 am
SUX
-
BWI
1 stop4h 47m
United Airlines
Deal found 5/28$617
This United Airlines deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/511:57 am
DCA
-
SUX
1 stop6h 56m
United Airlines
Sat 6/68:08 am
SUX
-
DCA
1 stop5h 15m
United Airlines
Deal found 5/27$619
This United Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:23 pm
BWI
-
SUX
1 stop8h 18m
United Airlines
Mon 7/2711:32 am
SUX
-
BWI
2 stops11h 56m
United Airlines
Deal found 5/28$624
This United Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/173:30 pm
DCA
-
SUX
1 stop27h 23m
United Airlines
Sun 7/268:10 am
SUX
-
DCA
1 stop5h 12m
United Airlines
Deal found 5/26$624
This United Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/255:32 pm
BWI
-
SUX
2 stops18h 25m
United Airlines
Tue 7/288:10 am
SUX
-
BWI
1 stop4h 47m
United Airlines
Deal found 5/28$625

Find flight deals from Washington, D.C. to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Sioux City (SUX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$534
(United Airlines)

One-way from

$226
(United Airlines)
Provider with most accurate pricing for Washington, D.C. (WAS)-Sioux City Sioux Gateway flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Sioux City Sioux Gateway flights.
Search Deals
From Washington, D.C. (WAS) to Sioux City Sioux Gateway
Search Deals
One-way flight from Washington, D.C. (WAS) to Sioux City Sioux Gateway
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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, Cheapflights users made 2,558,603 searches. Data last updated May 30, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Sioux City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Thu 8/6

4:23 pm-11:41 pm

1 stop8h 18m

Sioux City Sioux Gateway

Wed 8/12

11:30 am-7:34 pm

1 stop7h 04m

$568

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Thu 7/23

12:55 pm-10:57 am

2 stops23h 02m

Sioux City Sioux Gateway

Tue 7/28

8:10 am-1:57 pm

1 stop4h 47m

$617

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Sun 8/23

8:20 am-5:53 pm

1 stop10h 33m

Sioux City Sioux Gateway

Mon 8/24

7:45 am-1:55 pm

1 stop5h 10m

$638

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Thu 8/6

11:00 am-11:41 pm

2 stops13h 41m

Sioux City Sioux Gateway

Wed 8/12

7:45 am-2:23 pm

1 stop5h 38m

$646

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Sat 7/18

8:16 am-5:53 pm

1 stop10h 37m

Sioux City Sioux Gateway

Mon 7/27

11:32 am-12:28 am

2 stops11h 56m

$649

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Thu 8/6

10:23 pm-10:57 am

1 stop13h 34m

Sioux City Sioux Gateway

Wed 8/12

7:45 am-5:37 pm

1 stop8h 52m

$654

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Fri 7/24

6:38 pm-10:57 am

2 stops17h 19m

Sioux City Sioux Gateway

Tue 7/28

11:32 am-12:28 am

2 stops11h 56m

$662

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Sat 7/18

2:05 pm-5:53 pm

1 stop4h 48m

Sioux City Sioux Gateway

Mon 7/27

6:35 pm-2:59 pm

1 stop19h 24m

$682

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Sat 7/18

6:15 am-5:53 pm

1 stop12h 38m

Sioux City Sioux Gateway

Sun 7/26

8:10 am-9:27 am

1 stop24h 17m

$683

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Thu 7/23

12:55 pm-10:57 am

2 stops23h 02m

Sioux City Sioux Gateway

Mon 7/27

11:32 am-12:28 am

2 stops11h 56m

$702

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/28

Showing 1-10 of 43 resultsSorted by cheapest first
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Compare providers for flights from Washington, D.C. to Sioux City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Sioux City in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Sioux City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Sioux City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Sioux City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Sioux City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Sioux City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Sioux City
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Sioux City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sioux City from Washington, D.C.?

    Sioux City Sioux Gateway (SUX) is the airport you will fly into if you book a flight from Washington, D.C. to Sioux City. You should not have trouble finding flights to Sioux Gateway from Washington, D.C.; the airport handles an average of 0 inbound flights from Washington, D.C. per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Sioux City airport from Washington, D.C.. It is only a 7.0 mi journey from Sioux Gateway (SUX) to Sioux City’s city center.

  • How long is the flight from Washington, D.C. to Sioux City?

    There are many flights that can get you from Washington, D.C. to Sioux City in 8h 18m. Fly via United Airlines to get the fastest option. There are 1052 mi between Washington, D.C. and Sioux City.

  • What are the most popular routes from Washington, D.C. to Sioux City?

    Most travelers choose Washington, D.C. Dulles Intl - Sioux City Sioux Gateway, Washington, D.C. Reagan-National - Sioux City Sioux Gateway or Baltimore/Washington - Sioux City Sioux Gateway when deciding on the best route from Washington, D.C. to Sioux City.

  • Can I find deals for flights from Washington, D.C. to Sioux City that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Sioux City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Sioux City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Sioux City.

  • Can I find deals for business class flights from Washington, D.C. to Sioux City?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Sioux City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from Washington, D.C. to Sioux City

Discover the top airline that operate flights from Washington, D.C. to Sioux City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$263Average$481FlexibilityNo cancel feeOn-time69%

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