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Sioux City

$264+ Cheap flights from District of Columbia 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SUX
Feb 6 — Feb 131
Fri 2/6
Fri 2/13
1 adult, Economy
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Cheap flight deals from District of Columbia to Sioux City

Keep the following information in mind while searching for District of Columbia to Sioux City flight deals. Data was last updated January 7, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$264
(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 District of Columbia to Sioux City Sioux Gateway
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Find flight deals from District of Columbia to Sioux City

Cheapest flights from District of Columbia to Sioux City
Explore the most affordable flight options available from District of Columbia to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 7, 2026.

This United Airlines deal was found by Cheapflights users on 1/4. 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 2/31:05 pmIAD - SUX
1 stop5h 23mUnited Airlines
Tue 2/1012:45 pmSUX - IAD
1 stop7h 32mUnited Airlines
Deal found 1/4$264
This United Airlines deal was found by Cheapflights users on 1/6. 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 1/211:00 pmDCA - SUX
1 stop5h 28mUnited Airlines
Sun 1/2512:45 pmSUX - DCA
1 stop7h 14mUnited Airlines
Deal found 1/6$294
This United Airlines deal was found by Cheapflights users on 1/4. 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 1/201:05 pmIAD - SUX
1 stop5h 23mUnited Airlines
Sat 1/2412:45 pmSUX - IAD
1 stop7h 32mUnited Airlines
Deal found 1/4$294
This United Airlines deal was found by Cheapflights users on 1/6. 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 1/2410:30 amDCA - SUX
1 stop7h 58mUnited Airlines
Wed 1/2812:45 pmSUX - DCA
1 stop5h 28mUnited Airlines
Deal found 1/6$359
This United Airlines deal was found by Cheapflights users on 1/6. 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 1/241:05 pmIAD - SUX
1 stop5h 23mUnited Airlines
Wed 1/2812:45 pmSUX - IAD
1 stop7h 32mUnited Airlines
Deal found 1/6$359
This United Airlines deal was found by Cheapflights users on 1/6. 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 1/1610:30 amDCA - SUX
1 stop7h 58mUnited Airlines
Sun 1/1812:45 pmSUX - DCA
1 stop5h 28mUnited Airlines
Deal found 1/6$384
This United Airlines deal was found by Cheapflights users on 1/6. 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 1/71:00 pmDCA - SUX
1 stop5h 28mUnited Airlines
Tue 1/1312:45 pmSUX - DCA
1 stop7h 14mUnited Airlines
Deal found 1/6$394
This United Airlines deal was found by Cheapflights users on 1/6. 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 1/71:05 pmIAD - SUX
1 stop5h 23mUnited Airlines
Tue 1/1312:45 pmSUX - IAD
1 stop7h 32mUnited Airlines
Deal found 1/6$394
This United Airlines deal was found by Cheapflights users on 1/7. 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.
Sun 2/110:20 pmIAD - SUX
2 stops20h 08mUnited Airlines
Sun 2/812:45 pmSUX - IAD
1 stop7h 32mUnited Airlines
Deal found 1/7$432
This United Airlines deal was found by Cheapflights users on 1/6. 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 1/211:05 pmIAD - SUX
1 stop5h 23mUnited Airlines
Sun 1/2512:45 pmSUX - IAD
2 stops22h 10mUnited Airlines
Deal found 1/6$451
This United Airlines deal was found by Cheapflights users on 1/7. 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.
Sun 2/14:11 pmDCA - SUX
1 stop19h 44mUnited Airlines
Sun 2/812:45 pmSUX - DCA
1 stop7h 14mUnited Airlines
Deal found 1/7$462
This United Airlines deal was found by Cheapflights users on 1/7. 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 2/1312:00 pmDCA - SUX
1 stop6h 41mUnited Airlines
Mon 2/161:00 pmSUX - DCA
1 stop6h 59mUnited Airlines
Deal found 1/7$473

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 January 7, 2026.
Use the filters below to find and compare flights from District of Columbia to Sioux City that are best for you.

Fly from

District of Columbia

Fly to

Sioux City

Route

Depart

Return

Price

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Tue 2/3

1:05 pm-5:28 pm

1 stop5h 23m

Sioux City Sioux Gateway

Tue 2/10

12:45 pm-9:17 pm

1 stop7h 32m

$264

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Tue 2/3

1:05 pm-5:28 pm

1 stop5h 23m

Sioux City Sioux Gateway

Sun 2/8

12:45 pm-9:17 pm

1 stop7h 32m

$264

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Wed 1/21

1:00 pm-5:28 pm

1 stop5h 28m

Sioux City Sioux Gateway

Sun 1/25

12:45 pm-8:59 pm

1 stop7h 14m

$294

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Wed 1/21

1:05 pm-5:28 pm

1 stop5h 23m

Sioux City Sioux Gateway

Sun 1/25

12:45 pm-9:17 pm

1 stop7h 32m

$294

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Tue 1/20

1:05 pm-5:28 pm

1 stop5h 23m

Sioux City Sioux Gateway

Sat 1/24

12:45 pm-9:17 pm

1 stop7h 32m

$294

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Sat 1/24

10:30 am-5:28 pm

1 stop7h 58m

Sioux City Sioux Gateway

Wed 1/28

12:45 pm-7:13 pm

1 stop5h 28m

$359

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Sat 1/24

1:05 pm-5:28 pm

1 stop5h 23m

Sioux City Sioux Gateway

Wed 1/28

12:45 pm-9:17 pm

1 stop7h 32m

$359

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Sun 2/1

10:20 pm-5:28 pm

2 stops20h 08m

Sioux City Sioux Gateway

Sun 2/8

12:45 pm-9:17 pm

1 stop7h 32m

$432

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Sun 2/1

4:11 pm-10:55 am

1 stop19h 44m

Sioux City Sioux Gateway

Sun 2/8

12:45 pm-8:59 pm

1 stop7h 14m

$462

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Fri 2/13

12:00 pm-5:41 pm

1 stop6h 41m

Sioux City Sioux Gateway

Mon 2/16

1:00 pm-8:59 pm

1 stop6h 59m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/4

Showing 1-10 of 11 results
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Best time to book a flight from District of Columbia to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from District of Columbia 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 District of Columbia to Sioux City

What is the cheapest month to book a flight from District of Columbia to Sioux City?

Currently, October is the cheapest month in which you can book a flight from District of Columbia to Sioux City (average of $126). Flying from District of Columbia 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.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia 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 District of Columbia?

    Most people fly into Sioux City Sioux Gateway (SUX) if they book a flight to Sioux City from District of Columbia. Sioux Gateway is conveniently located just 7.0 mi from Sioux City’s city center.

  • How long is the flight from District of Columbia to Sioux City?

    For as low as $264, United Airlines can have you in Sioux City from District of Columbia in 5h 23m. The distance from District of Columbia to Sioux City is about 1017 mi.

  • Can I find deals for flights from District of Columbia to Sioux City that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Sioux City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Sioux City?

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

  • Can I find deals for business class flights from District of Columbia to Sioux City?

    Yes. Cheapflights offers flight deals from District of Columbia 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 District of Columbia to Sioux City?

    Currently, October is the cheapest month in which you can book a flight from District of Columbia to Sioux City (average of $126). Flying from District of Columbia 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

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Alternative routes for District of Columbia to Sioux City

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Top airline flying from District of Columbia to Sioux City

Discover the top airline that operate flights from District of Columbia 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 January 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$263Average$533FlexibilityNo cancel feeOn-time69%

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