WAS - SUX

$194 Find Cheap Flights from Washington, D.C. to Sioux City

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 10/17. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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

Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
7:05 pm - 11:00 pmBWI-SUX
4h 55m1 stop
United Airlines Logo
7:50 am - 2:08 pmSUX-BWI
5h 18m1 stop
$296United Airlines
Find Deal
Tue, Feb 24 - Sat, Feb 28
United Airlines Logo
4:06 pm - 11:34 pmBWI-SUX
8h 28m1 stop
United Airlines Logo
12:45 pm - 9:27 pmSUX-BWI
7h 42m1 stop
$324United Airlines
Find Deal
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
11:30 am - 5:32 pmDCA-SUX
7h 02m1 stop
United Airlines Logo
12:45 pm - 8:43 pmSUX-DCA
6h 58m1 stop
$324United Airlines
Find Deal
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
1:05 pm - 5:32 pmIAD-SUX
5h 27m1 stop
United Airlines Logo
12:45 pm - 9:05 pmSUX-IAD
7h 20m1 stop
$324United Airlines
Find Deal
Tue, Feb 24 - Sat, Feb 28
United Airlines Logo
4:06 pm - 11:34 pmBWI-SUX
8h 28m1 stop
United Airlines Logo
12:45 pm - 9:27 pmSUX-BWI
7h 42m1 stop
$350United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
6:29 am - 6:14 pmBWI-SUX
12h 45m2 stops
United Airlines Logo
7:50 am - 2:08 pmSUX-BWI
5h 18m1 stop
$360United Airlines
Find Deal
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
1:05 pm - 5:32 pmIAD-SUX
5h 27m1 stop
United Airlines Logo
12:45 pm - 7:35 amSUX-IAD
17h 50m2 stops
$413United Airlines
Find Deal
Tue, Feb 24 - Sat, Feb 28
United Airlines Logo
4:06 pm - 11:34 pmBWI-SUX
8h 28m1 stop
United Airlines Logo
6:00 am - 4:05 pmSUX-BWI
9h 05m2 stops
$427United Airlines
Find Deal
Tue, Feb 24 - Sat, Feb 28
United Airlines Logo
6:30 am - 11:34 pmBWI-SUX
18h 04m3 stops
United Airlines Logo
12:45 pm - 9:27 pmSUX-BWI
7h 42m1 stop
$452United Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
United Airlines Logo
7:05 pm - 11:00 pmBWI-SUX
4h 55m1 stop
United Airlines Logo
6:51 pm - 11:18 pmSUX-BWI
27h 27m1 stop
$470United Airlines
Find Deal

Everything you should know

Cheapest round-trip
$296
United Airlines
Tue 10/14Tue 10/21
BWI - SUX • 1 stop
Cheapest one-way
$194
United Airlines
Fri 10/17
BWI - SUX • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sioux City!
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 – 78% 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 $346.

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 51m.

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, Chicago (ORD) often has the shortest layovers from Washington, D.C. to Sioux City, with an average of 1h 27m.

Find deals

Good to know

Cheapest flight$194
Flight from Baltimore 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 $194 for a one-way ticket and $296 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.

  • Which airline alliances offer flights from Washington, D.C. to Sioux City?

    Star Alliance is the only airline alliance operating flights between Washington, D.C. and Sioux City.

  • 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 8929 reviews
8.1Crew
7.1Entertainment
7.7Boarding
7.3Comfort
6.6Food
Airline reviews

Great service on board. Boarding a bit slow due to process. Food was pretty average.

8.0 ExcellentTim, Aug 2025IAD - MUC
Read more United Airlines reviews

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

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

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

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)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.