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IAD - SUX

Find cheap flights from Washington Dulles Airport to Sioux City from $466

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Sioux City departing on 8/19. 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
0 bags
Fri 6/7
Fri 6/14

Search 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
In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

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

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Cheap flight deals from Dulles Intl to Sioux City (IAD-SUX)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl 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 and deals for you by selecting your travel dates.
Choose your dates
12:48 pm - 11:03 pmIAD-SUX
11h 15m1 stop
7:20 am - 5:54 pmSUX-IAD
9h 34m1 stop
$466United Airlines
Find Deal
Mon, Aug 19 - Sat, Aug 24
12:48 pm - 11:03 pmIAD-SUX
11h 15m1 stop
7:20 am - 9:20 pmSUX-IAD
13h 00m2 stops
$478United Airlines
Find Deal
Mon, Aug 19 - Sat, Aug 24
5:15 pm - 10:45 pmIAD-SUX
6h 30m1 stop
3:31 pm - 10:59 pmSUX-IAD
6h 28m1 stop
$499United Airlines
Find Deal
Sat, Oct 12 - Sat, Oct 19
8:35 am - 6:26 pmIAD-SUX
10h 51m1 stop
7:01 pm - 11:26 amSUX-IAD
15h 25m1 stop
$616United Airlines
Find Deal
Fri, Jul 5 - Tue, Jul 9
10:08 pm - 6:26 pmIAD-SUX
21h 18m1 stop
6:15 am - 7:18 amSUX-IAD
24h 03m2 stops
$621United Airlines
Find Deal
Fri, Jul 5 - Tue, Jul 9
8:35 am - 2:54 pmIAD-SUX
7h 19m1 stop
7:45 am - 4:25 pmSUX-IAD
7h 40m1 stop
$647United Airlines
Find Deal
Sat, Oct 5 - Sat, Oct 12

Good to know

Cheapest flight

$466
Flight from Washington Dulles Airport to Sioux City

When to book flights from Dulles Intl to Sioux City

Are your dates flexible? Find out the best times to travel from Dulles Intl 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 Washington Dulles Airport to Sioux City flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Sioux City was $466 for a round-trip ticket.

  • Do I need a passport to fly between Washington Dulles Airport and Sioux City?

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

  • Which airports will I be using when flying from Washington Dulles Airport to Sioux City?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Sioux City, also known as Sioux City Sioux Gateway.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Sioux City?

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

  • Which airline alliances offer flights from Washington Dulles Airport to Sioux City?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and Sioux City.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport to Sioux City.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport 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 Dulles Airport 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 Dulles Airport 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 Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and SUX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport 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 Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Dulles Intl 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 Dulles Intl 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 11043 reviews
8.1Crew
7.7Boarding
6.7Food
7.1Entertainment
7.2Comfort
Airline reviews

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

2.0 MediocreTed, May 2024IAD - SFO
Read more about United Airlines reviews

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

Wasn’t very crowded. Seamless processes. No issues traveling with two little kids.

My interaction with the flight attendent Eve was horrible. I was seated in 3F and was blown away watching her repeatedly skip me as she took other customer orders for lunch...she took the customer next to me but skipped me, then took everyone's order around me (in front of and behind me) . After she had taken every customer's orders to include those behind me, she came to me and said we are out of everything except one last item. I was mortified, in that, I am a 1k flyer, had pre-ordered AND as an African American could only assume why she repeatedly skipped me...mortified. no words

The Flight was good, pilot seemed very skillful. My wheel chair sister who could barely walk was allotted the second last seat in the aircraft, with great difficulty she managed to reach on her seat, as she required attendance we were given separate seat, even on request no one cared, so much so there were single passengers who were given twin seats. May not be taken as complaint but a reminder to the checkin staff to keep in mind in future the allottment of wheel chair passengers seats.

Almost 2 hour delay in boarding with all standing ready to board at original time. No explanation given.

787-9 Transcon from IAD-LAX FYI no meals in premium plus, not considered Premium - seats are wonderful https://www.united.com/ual/en/us/fly/travel/inflight/premium-services.html Horrible handling of delayed flight

Washington Dulles Airport - Sioux City Flights

Departure:

Washington Dulles Airport (undefined)United States

Destination:

Sioux City (SUX)United States

Return flight deals:

Sioux City - Washington Dulles Airport

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