What is the cheapest airline to fly from Washington, D.C. to Sioux City round-trip?

Cheapflights users have booked flights from Washington, D.C. to Sioux City round-trip from $354.

What is the cheapest day to fly from Washington, D.C. to Sioux City?

Travelers seeking maximum savings on their Washington, D.C. to Sioux City flight should consider departing on Saturday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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.

What is the cheapest day to fly round-trip from Washington, D.C. to Sioux City?

Wednesday flights are generally found to be more expensive for flights from Washington, D.C. to Sioux City. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sioux City.

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 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.

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.

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.

$265+ Flights from Washington, D.C. to Sioux City

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1. Tell us where you want to go

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2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$354 (United Airlines)
One-way from	$265 (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

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 May 1, 2025.

Thu 5/158:23 amBWI - SUX

1 stop7h 05mUnited Airlines

Mon 5/193:26 pmSUX - BWI

1 stop6h 51mUnited Airlines

Deal found 4/30

$354

Sat 5/245:59 pmDCA - SUX

1 stop5h 41mUnited Airlines

Tue 6/310:10 amSUX - DCA

1 stop4h 38mUnited Airlines

Deal found 4/29

$376

Wed 5/148:21 amIAD - SUX

2 stops15h 09mUnited Airlines

Sun 5/183:26 pmSUX - IAD

2 stops14h 55mUnited Airlines

Deal found 4/28

$586

Best flights from Washington, D.C. to Sioux City
Discover carefully curated flight deals from Washington, D.C. to Sioux City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Thu 5/158:23 amBWI - SUX

1 stop7h 05mUnited Airlines

Mon 5/193:26 pmSUX - BWI

1 stop6h 51mUnited Airlines

Deal found 4/30

$354

Sat 5/245:59 pmDCA - SUX

1 stop5h 41mUnited Airlines

Tue 6/310:10 amSUX - DCA

1 stop4h 38mUnited Airlines

Deal found 4/29

$376

Wed 5/148:21 amIAD - SUX

2 stops15h 09mUnited Airlines

Sun 5/183:26 pmSUX - IAD

2 stops14h 55mUnited Airlines

Deal found 4/28

$586

Last-minute flights from Washington, D.C. to Sioux City
Discover last-minute flight deals from Washington, D.C. to Sioux City. Data last updated May 1, 2025 and is based on user searches.

Wed 5/148:21 amIAD - SUX

2 stops15h 09mUnited Airlines

Sun 5/183:26 pmSUX - IAD

2 stops14h 55mUnited Airlines

Deal found 4/28

$586

Thu 5/158:23 amBWI - SUX

1 stop7h 05mUnited Airlines

Mon 5/193:26 pmSUX - BWI

1 stop6h 51mUnited Airlines

Deal found 4/30

$354

Sat 5/245:59 pmDCA - SUX

1 stop5h 41mUnited Airlines

Tue 6/310:10 amSUX - DCA

1 stop4h 38mUnited Airlines

Deal found 4/29

$376

One-way flights from Washington, D.C. to Sioux City
Search for one-way flight options from Washington, D.C. to Sioux City. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Fri 6/136:00 pmDCA - SUX

1 stop5h 40mUnited Airlines

Deal found 4/29

$265

Fri 6/136:48 amIAD - SUX

1 stop16h 52mUnited Airlines

Deal found 4/29

$345

Fri 7/256:50 pmBWI - SUX

1 stop4h 50mUnited Airlines

Deal found 4/30

$366

Cheapflights Fare Finder

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

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Thu 5/15

8:23 am-2:28 pm

1 stop7h 05m

Sioux City Sioux Gateway

Mon 5/19

3:26 pm-11:17 pm

1 stop6h 51m

$354

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Sat 5/24

5:59 pm-10:40 pm

1 stop5h 41m

Sioux City Sioux Gateway

Tue 6/3

10:10 am-3:48 pm

1 stop4h 38m

$376

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Wed 5/14

8:21 am-10:30 pm

2 stops15h 09m

Sioux City Sioux Gateway

Sun 5/18

3:26 pm-7:21 am

2 stops14h 55m

$586

Washington, D.C.Sioux City

DCA - SUX

DCASUX

Washington, D.C. Reagan-National

Fri 6/13

6:00 pm-10:40 pm

1 stop5h 40m

$265

Washington, D.C.Sioux City

IAD - SUX

IADSUX

Washington, D.C. Dulles Intl

Fri 6/13

6:48 am-10:40 pm

1 stop16h 52m

$345

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Fri 7/25

6:50 pm-10:40 pm

1 stop4h 50m

$366

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Compare providers for flights from Washington, D.C. to Sioux City

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.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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 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, October is the cheapest month in which you can book a flight from Washington, D.C. to Sioux City (average of $318). Flying from Washington, D.C. to Sioux City in March is currently the most expensive (average of $446). 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?

It’s optimal to fly from Washington, D.C. to Sioux City in the afternoon. By choosing this option you can save up to 44% on the cost of your flight, compared to a flight at noon.

Rainfall in Sioux City by month

In terms of precipitation, rainfall in Sioux City ranges from 0.7 - 4.2 inches per month. June is typically the wettest month, when rainfall can reach 4.2 in. January is typically the driest time to visit Sioux City when rainfall is around 0.7 in.

Temperature in Sioux City by month

If weather is an important factor for your trip to Sioux City, 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 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Sioux City

United Airlines

7.4

Good

8,696 reviews

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

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

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.
What is the cheapest airline to fly from Washington, D.C. to Sioux City round-trip?
Cheapflights users have booked flights from Washington, D.C. to Sioux City round-trip from $354.
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, October is the cheapest month in which you can book a flight from Washington, D.C. to Sioux City (average of $318). Flying from Washington, D.C. to Sioux City in March is currently the most expensive (average of $446). 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 Washington, D.C. to Sioux City

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$367	Average$416	FlexibilityNo cancel fee	On-time69%

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$265+ 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 6/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Sioux City with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

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

Cheapest flights from Washington, D.C. to Sioux CityExplore 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 1, 2025.

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 1, 2025.

Cheapflights Fare Finder

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

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.

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.

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?

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 May 1, 2025.

Rainfall in Sioux City by month

Plan your trip to Sioux City by taking into account the average rainfall totals by month.

Temperature in Sioux City by month

Plan your trip to Sioux City by taking into account the average temperature totals by month.

Reviews of airlines servicing Sioux City

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.?

What is the cheapest airline to fly from Washington, D.C. to Sioux City round-trip?

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

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

How can I 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?

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

Traveling to a place near Washington, D.C.?

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Alternative routes for Washington, D.C. to Sioux City

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

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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 1, 2025.