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$244+ Cheap flights from Washington, D.C. (WAS) to Sioux City (SUX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SUX
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Cheap 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 November 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$244
(United Airlines)
Provider with most accurate pricing for Washington, D.C. (WAS)-Sioux City Sioux Gateway flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Sioux City Sioux Gateway flights.
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From Washington, D.C. (WAS) to Sioux City Sioux Gateway
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Find 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 November 4, 2025.

This United Airlines deal was found by Cheapflights users on 11/2. 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 12/126:00 pmDCA - SUX
1 stop5h 59mUnited Airlines
Sun 12/147:50 amSUX - DCA
1 stop5h 23mUnited Airlines
Deal found 11/2$244
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 12/245:19 pmBWI - SUX
1 stop6h 56mUnited Airlines
Fri 1/912:45 pmSUX - BWI
1 stop7h 56mUnited Airlines
Deal found 11/2$324
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 12/246:00 pmDCA - SUX
1 stop6h 15mUnited Airlines
Sat 1/1012:45 pmSUX - DCA
1 stop5h 28mUnited Airlines
Deal found 11/2$324
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 12/245:19 pmBWI - SUX
1 stop6h 56mUnited Airlines
Sat 1/1012:45 pmSUX - BWI
1 stop7h 56mUnited Airlines
Deal found 11/2$374
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Tue 12/237:00 pmDCA - SUX
1 stop5h 15mUnited Airlines
Fri 1/912:45 pmSUX - DCA
1 stop7h 14mUnited Airlines
Deal found 11/2$437
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Wed 11/199:57 amIAD - SUX
1 stop9h 11mUnited Airlines
Sun 11/237:45 amSUX - IAD
1 stop7h 10mUnited Airlines
Deal found 11/3$454
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/125:00 pmDCA - SUX
1 stop6h 59mUnited Airlines
Sun 12/217:50 amSUX - DCA
1 stop25h 09mUnited Airlines
Deal found 11/2$463
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 12/241:00 pmIAD - SUX
1 stop11h 15mUnited Airlines
Fri 1/912:45 pmSUX - IAD
1 stop7h 32mUnited Airlines
Deal found 11/2$463
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 12/246:00 pmDCA - SUX
1 stop6h 15mUnited Airlines
Mon 1/57:50 amSUX - DCA
1 stop6h 42mUnited Airlines
Deal found 11/2$464
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/256:30 amIAD - SUX
1 stop10h 23mUnited Airlines
Fri 1/912:45 pmSUX - IAD
1 stop7h 32mUnited Airlines
Deal found 11/2$473
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 12/245:19 pmBWI - SUX
1 stop6h 56mUnited Airlines
Mon 1/56:54 pmSUX - BWI
2 stops18h 17mUnited Airlines
Deal found 11/2$478
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/256:15 amBWI - SUX
1 stop10h 38mUnited Airlines
Fri 1/912:45 pmSUX - BWI
1 stop7h 56mUnited Airlines
Deal found 11/2$501

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 November 4, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Sioux City that are best for you.

Fly from

Washington, D.C.

Fly to

Sioux City

Route

Depart

Return

Price

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Fri 12/12

6:00 pm-10:59 pm

1 stop5h 59m

Sioux City Sioux Gateway

Sun 12/14

7:50 am-2:13 pm

1 stop5h 23m

$244

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Wed 12/24

5:19 pm-11:15 pm

1 stop6h 56m

Sioux City Sioux Gateway

Fri 1/9

12:45 pm-9:41 pm

1 stop7h 56m

$324

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Wed 12/24

6:00 pm-11:15 pm

1 stop6h 15m

Sioux City Sioux Gateway

Fri 1/9

12:45 pm-8:59 pm

1 stop7h 14m

$324

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Fri 2/6

4:10 pm-11:47 pm

1 stop8h 37m

Sioux City Sioux Gateway

Mon 2/9

12:45 pm-9:41 pm

1 stop7h 56m

$351

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Tue 2/24

10:30 am-5:41 pm

1 stop8h 11m

Sioux City Sioux Gateway

Sat 2/28

1:00 pm-9:27 pm

1 stop7h 27m

$368

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Wed 12/24

5:19 pm-11:15 pm

1 stop6h 56m

Sioux City Sioux Gateway

Sat 1/10

12:45 pm-9:41 pm

1 stop7h 56m

$374

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Tue 12/23

7:00 pm-11:15 pm

1 stop5h 15m

Sioux City Sioux Gateway

Fri 1/9

12:45 pm-8:59 pm

1 stop7h 14m

$437

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Tue 12/23

7:00 pm-11:15 pm

1 stop5h 15m

Sioux City Sioux Gateway

Sat 1/10

12:45 pm-8:59 pm

1 stop7h 14m

$437

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Thu 12/25

10:30 am-3:53 pm

1 stop6h 23m

Sioux City Sioux Gateway

Sat 1/10

12:45 pm-8:59 pm

1 stop7h 14m

$437

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Wed 11/19

9:57 am-6:08 pm

1 stop9h 11m

Sioux City Sioux Gateway

Sun 11/23

7:45 am-3:55 pm

1 stop7h 10m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 25 results
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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 November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C.-Sioux City flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

What is the cheapest month to book a flight from Washington, D.C. to Sioux City?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Sioux City (average of $138). Flying from Washington, D.C. to Sioux City in April is currently the most expensive (average of $270). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to SUX?

Find hourly flight availability from Washington, D.C. to Sioux City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 4, 2025.

It’s optimal to fly from Washington, D.C. to Sioux City in the evening. By choosing this option you can save up to 46% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Sioux City

Get insights into the airlines that provide service to Sioux City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sioux City. Reviews last updated November 4, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Sioux City, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,002 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,002 reviews
United Airlines
7.4
Good
9,002 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 5h 59m. Fly via United Airlines to get the fastest option. There are 1040 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. Reagan-National - Sioux City Sioux Gateway, Baltimore/Washington - Sioux City Sioux Gateway or Washington, D.C. Dulles Intl - 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.

  • What is the cheapest month to book a flight from Washington, D.C. to Sioux City?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Sioux City (average of $138). Flying from Washington, D.C. to Sioux City in April is currently the most expensive (average of $270). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$367Average$416FlexibilityNo cancel feeOn-time69%

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