WAS - SUX

$200 Find Cheap Flights from Washington, D.C. to Sioux City - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Sioux City departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$334
United Airlines
Sun 11/1Sat 11/7
DCA - SUX • 1 stop
Cheapest one-way
$200
United Airlines
Thu 10/1
DCA - SUX • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Sioux City. You'll need at least 1 connection.
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Insights
Top layover airports
Chicago (ORD)
Cheapest • Avg $402 (round-trip)
Chicago (ORD)
Shortest trip • 5h 19m (one-way)
Insights
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Flight Deals

Cheap Flights from Washington, D.C. to Sioux City (WAS-SUX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Sioux City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Sioux City

Sun, Nov 1 - Sat, Nov 7
United Airlines Logo
1:05 pm - 6:10 pm
DCA
-
SUX
6h 05m
1 stop
United Airlines Logo
8:20 am - 5:09 pm
SUX
-
DCA
7h 49m
1 stop
$334United Airlines
Wed, Aug 26 - Sat, Aug 29
United Airlines Logo
1:04 pm - 5:53 pm
DCA
-
SUX
5h 49m
1 stop
United Airlines Logo
9:05 am - 5:02 pm
SUX
-
DCA
6h 57m
1 stop
$337United Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
1:00 pm - 5:54 pm
DCA
-
SUX
5h 54m
1 stop
United Airlines Logo
9:03 am - 3:38 pm
SUX
-
DCA
5h 35m
1 stop
$404United Airlines
Tue, Jan 12 - Sat, Jan 16
United Airlines Logo
11:30 am - 5:54 pm
DCA
-
SUX
7h 24m
1 stop
United Airlines Logo
9:03 am - 4:52 pm
SUX
-
DCA
6h 49m
1 stop
$404United Airlines
Sat, Nov 14 - Wed, Nov 18
United Airlines Logo
4:19 pm - 11:43 pm
BWI
-
SUX
8h 24m
1 stop
United Airlines Logo
8:20 am - 2:06 pm
SUX
-
BWI
4h 46m
1 stop
$404United Airlines
Tue, Jan 12 - Sat, Jan 16
United Airlines Logo
4:10 pm - 11:42 pm
BWI
-
SUX
8h 32m
1 stop
United Airlines Logo
9:03 am - 5:23 pm
SUX
-
BWI
7h 20m
1 stop
$404United Airlines
Sat, Nov 14 - Wed, Nov 18
United Airlines Logo
4:19 pm - 11:43 pm
BWI
-
SUX
8h 24m
1 stop
United Airlines Logo
8:20 am - 2:06 pm
SUX
-
BWI
4h 46m
1 stop
$414United Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
1:00 pm - 5:54 pm
DCA
-
SUX
5h 54m
1 stop
United Airlines Logo
9:03 am - 3:38 pm
SUX
-
DCA
5h 35m
1 stop
$424United Airlines
Sun, Nov 1 - Sat, Nov 7
United Airlines Logo
12:34 pm - 6:10 pm
BWI
-
SUX
6h 36m
1 stop
United Airlines Logo
8:20 am - 2:06 pm
SUX
-
BWI
4h 46m
1 stop
$454United Airlines
Wed, Aug 12 - Sun, Aug 16
United Airlines Logo
2:00 pm - 5:53 pm
DCA
-
SUX
4h 53m
1 stop
United Airlines Logo
8:10 am - 3:47 pm
SUX
-
DCA
6h 37m
1 stop
$494United Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Sioux City flights

Get data-powered insights and trends into flights from Washington, D.C. to Sioux City to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from Washington, D.C. to Sioux City?

Percentage of 1-stop round-trip flights from Washington, D.C. to Sioux City chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Chicago (ORD) is the top choice – 95% of KAYAK users who clicked on 1-stop flights from Washington, D.C. to Sioux City picked an itinerary connecting there.

What is the cheapest layover airport when flying from Washington, D.C. to Sioux City?

Average round-trip price for 1-stop flights from Washington, D.C. to Sioux City clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Chicago (ORD) offer the most affordable fares, with an average round-trip price of $402.

Which layover airport offers the shortest total travel time from Washington, D.C. to Sioux City?

Shortest average total travel time for 1-stop one-way flights from Washington, D.C. to Sioux City via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Chicago (ORD) for the shortest journey. The average one-way travel time for flights connecting there is 5h 19m.

Which layover airport has the quickest connection when flying from Washington, D.C. to Sioux City?

Average layover duration at different layover airports for 1-stop one-way flights from Washington, D.C. to Sioux City, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Denver (DEN) often has the shortest layovers from Washington, D.C. to Sioux City, with an average of 1h 07m.

Find deals

Good to know

Cheapest flight

$200
Flight from Reagan Washington National Airport to Sioux City

When to book flights from Washington, D.C. to Sioux City

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Sioux City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to Sioux City

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

    In the last 5 days, the lowest price for a flight from Washington, D.C. to Sioux City was $200 for a one-way ticket and $334 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Sioux City?

    No, a passport isn't needed to fly from Washington, D.C. to Sioux City. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Washington, D.C. to Sioux City?

    When flying out of Washington, D.C. you will be using one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be landing at Sioux City Sioux Gateway.

  • Which aircraft models fly most regularly from Washington, D.C. to Sioux City?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Sioux City?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Sioux City.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Sioux City?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux City from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Sioux City?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sioux City with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Sioux City?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sioux City from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Washington, D.C. to Sioux City

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Sioux City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to Sioux City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10062 reviews
6.7Food
7.1Entertainment
7.7Boarding
8.1Crew
7.3Comfort
Airline reviews

My flight was delayed so bad i missed u it so i just said never mind

2.0 MediocreDanika, Jul 2026
IAD - EWR
Read more United Airlines reviews

My flight was delayed so bad i missed u it so i just said never mind

Delayed 2 hours while stuck on the aircraft. If the luggage was properly loaded the first time we probably wouldn’t have been delayed at all

Onboard staff was courteous, helpful, responsive and friendly. The boarding process was disorganized, poorly communicated, and disheveled. Gate agents were yelling instead of using the PA system, didn’t communicate the timing delay of our flight, and created an atmosphere of chaos rather than order and communication. As far as I know, there was no reason for their. I would hate to see how it operated under extreme conditions. I’ve never seen United Airlines operations in such a state.

The flight did not have its customary snacks during the flight. Apparently they were never loaded on the plane.

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Everything you need to know for your flight from Washington, D.C. to Sioux City

Information on your arrival and departure airports

Sioux City (SUX)