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$269+ Cheap flights from Sioux City (SUX) to District of Columbia

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — IAD
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheap flight deals from Sioux City to District of Columbia

Keep the following information in mind while searching for Sioux City to District of Columbia flight deals. Data was last updated April 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$311
(United Airlines)

One-way from

$269
(United Airlines)
Provider with most accurate pricing for Sioux City Sioux Gateway-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Sioux City Sioux Gateway-Washington, D.C. (WAS) flights.
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From Sioux City Sioux Gateway to District of Columbia
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One-way flight from Sioux City Sioux Gateway to District of Columbia
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Find flight deals from Sioux City to District of Columbia

Cheapest flights from Sioux City to District of Columbia
Explore the most affordable flight options available from Sioux City to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This United Airlines deal was found by Cheapflights users on 4/29. 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 6/1910:10 amSUX - DCA
1 stop6h 52mUnited Airlines
Tue 6/246:00 pmDCA - SUX
1 stop5h 40mUnited Airlines
Deal found 4/29$311
This United Airlines deal was found by Cheapflights users on 4/29. 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 6/1910:10 amSUX - IAD
2 stops24h 36mUnited Airlines
Tue 6/245:36 pmIAD - SUX
1 stop24h 39mUnited Airlines
Deal found 4/29$621

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
Use the filters below to find and compare flights from Sioux City to District of Columbia that are best for you.

Fly from

Sioux City

Fly to

District of Columbia

Route

Depart

Return

Price

Sioux CityWashington, D.C.

SUX - DCA

SUXDCA

Sioux City Sioux Gateway

Thu 6/19

10:10 am-6:02 pm

1 stop6h 52m

Washington, D.C. Reagan-National

Tue 6/24

6:00 pm-10:40 pm

1 stop5h 40m

$311

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Thu 6/19

10:10 am-11:46 am

2 stops24h 36m

Washington, D.C. Dulles Intl

Tue 6/24

5:36 pm-5:15 pm

1 stop24h 39m

$621

Sioux CityWashington, D.C.

SUX - IAD

SUXIAD

Sioux City Sioux Gateway

Wed 8/6

10:10 am-5:30 pm

1 stop6h 20m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Best time to book a flight from Sioux City to District of Columbia

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

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

Currently, August is the cheapest month in which you can book a flight from Sioux City to District of Columbia (average of $309). Flying from Sioux City to District of Columbia in June is currently the most expensive (average of $373). 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.

Rainfall in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in District of Columbia ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit District of Columbia when rainfall is around 2.6 in.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to District of Columbia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated April 30, 2025.
United Airlines
7.4
Good
8,696 reviews

Comfort

7.3

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,696 reviews
United Airlines
7.4
Good
8,696 reviews

Comfort

7.3

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Sioux City to District of Columbia. 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 from for flights from Sioux City to District of Columbia?

    Sioux City Sioux Gateway (SUX) is the airport you will fly out of if you book a flight from Sioux City to District of Columbia. It is only a 7.0 mi journey to Sioux Gateway (SUX) from Sioux City’s city center.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Sioux City to District of Columbia (average of $309). Flying from Sioux City to District of Columbia in June is currently the most expensive (average of $373). 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.

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Top airline flying from Sioux City to District of Columbia

Discover the top airline that operate flights from Sioux City to District of Columbia. 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$269Average$463FlexibilityNo cancel feeOn-time69%

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