WAS - SUX

$415 Find Cheap Flights from Washington, D.C. to Sioux City

This is the cheapest round-trip 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 6/1. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Sioux City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Sioux City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Sioux City, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$415
United Airlines
Mon 6/1Tue 6/9
DCA - SUX • 1 stop
Cheapest one-way
$421
United Airlines
Mon 7/27
BWI - 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.
Insights
Insights
Insights
Insights
Top layover airports
Chicago (ORD)
Cheapest • Avg $434 (round-trip)
Chicago (ORD)
Shortest trip • 5h 26m (one-way)
Insights
Insights
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We hope you love your trip to Sioux City!
Flight Deals
Booking Insights
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

Mon, Jun 1 - Tue, Jun 9
United Airlines Logo
2:00 pm - 5:53 pm
DCA
-
SUX
4h 53m
1 stop
United Airlines Logo
8:08 am - 2:22 pm
SUX
-
DCA
5h 14m
1 stop
$415United Airlines
Thu, May 28 - Fri, Jun 5
United Airlines Logo
1:25 pm - 5:54 pm
IAD
-
SUX
5h 29m
1 stop
United Airlines Logo
7:53 am - 2:08 pm
SUX
-
IAD
5h 15m
1 stop
$596United Airlines
Thu, May 28 - Fri, Jun 5
United Airlines Logo
12:49 pm - 5:54 pm
IAD
-
SUX
6h 05m
2 stops
United Airlines Logo
7:53 am - 2:08 pm
SUX
-
IAD
5h 15m
1 stop
$598United Airlines
Fri, May 15 - Tue, May 19
United Airlines Logo
10:35 pm - 10:41 am
IAD
-
SUX
13h 06m
1 stop
United Airlines Logo
12:55 pm - 7:28 pm
SUX
-
IAD
5h 33m
1 stop
$635United Airlines
Fri, May 15 - Tue, May 19
United Airlines Logo
4:11 pm - 11:32 pm
DCA
-
SUX
8h 21m
1 stop
United Airlines Logo
12:55 pm - 8:15 pm
SUX
-
DCA
6h 20m
1 stop
$642United Airlines
Thu, May 28 - Fri, Jun 5
United Airlines Logo
1:00 pm - 5:54 pm
DCA
-
SUX
5h 54m
1 stop
United Airlines Logo
7:53 am - 9:53 pm
SUX
-
DCA
13h 00m
2 stops
$672United Airlines
Fri, May 15 - Tue, May 19
United Airlines Logo
10:32 pm - 6:06 pm
IAD
-
SUX
20h 34m
2 stops
United Airlines Logo
12:55 pm - 7:28 pm
SUX
-
IAD
5h 33m
1 stop
$673United Airlines
Sun, May 31 - Sun, Jun 7
United Airlines Logo
10:15 pm - 5:53 pm
IAD
-
SUX
20h 38m
1 stop
United Airlines Logo
8:08 am - 11:27 am
SUX
-
IAD
26h 19m
2 stops
$689United Airlines
Fri, May 15 - Tue, May 19
United Airlines Logo
11:00 am - 11:32 pm
BWI
-
SUX
13h 32m
2 stops
United Airlines Logo
6:00 am - 5:28 pm
SUX
-
BWI
10h 28m
2 stops
$706United Airlines
Thu, Jul 30 - Mon, Aug 3
United Airlines Logo
10:23 pm - 11:41 pm
IAD
-
SUX
26h 18m
1 stop
United Airlines Logo
8:10 am - 11:52 am
SUX
-
IAD
26h 42m
1 stop
$738United 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 – 81% 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 $434.

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 26m.

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$415
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 3 days, the lowest price for a flight from Washington, D.C. to Sioux City was $421 for a one-way ticket and $415 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 9680 reviews
7.3Comfort
8.1Crew
6.6Food
7.1Entertainment
7.7Boarding
Airline reviews

Vegetarian selection could be better. Bread was too hard to chew.

8.0 ExcellentAnonymous, Apr 2026
IAD - FRA
Read more United Airlines reviews

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

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.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

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)