$332 Find Cheap Flights from Sioux City to District of Columbia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux City to District of Columbia departing on 8/18. 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 District of Columbia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux City to District of Columbia, 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 Sioux City to District of Columbia, as well as popular online travel agencies
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Cheap Flights from Sioux City to District of Columbia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Book Cheap Sioux City to District of Columbia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux City to District of Columbia 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 Sioux City to District of Columbia

Fri, Aug 29 - Fri, Sep 5
United Airlines Logo
6:48 pm - 3:34 pmSUX-IAD
19h 46m1 stop
United Airlines Logo
6:40 pm - 10:57 pmIAD-SUX
5h 17m1 stop
$480United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
6:53 pm - 11:27 amSUX-IAD
15h 34m1 stop
United Airlines Logo
6:40 pm - 10:57 pmIAD-SUX
5h 17m1 stop
$525United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
10:10 am - 6:02 pmSUX-DCA
6h 52m1 stop
United Airlines Logo
5:00 pm - 10:57 pmDCA-SUX
6h 57m1 stop
$541United Airlines
Find Deal
Fri, Aug 29 - Fri, Sep 5
United Airlines Logo
6:48 pm - 3:34 pmSUX-IAD
19h 46m1 stop
United Airlines Logo
10:18 pm - 10:57 pmIAD-SUX
25h 39m2 stops
$589United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
6:53 pm - 11:27 amSUX-IAD
15h 34m1 stop
United Airlines Logo
12:40 pm - 10:57 pmIAD-SUX
11h 17m2 stops
$623United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
6:53 pm - 10:27 amSUX-DCA
14h 34m2 stops
United Airlines Logo
5:00 pm - 10:57 pmDCA-SUX
6h 57m1 stop
$637United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
10:10 am - 9:20 pmSUX-IAD
10h 10m2 stops
United Airlines Logo
5:17 pm - 10:57 pmIAD-SUX
6h 40m2 stops
$1,020United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
10:10 am - 9:38 pmSUX-DCA
10h 28m2 stops
United Airlines Logo
3:14 pm - 10:57 pmDCA-SUX
8h 43m2 stops
$1,052United Airlines
Find Deal
Fri, Aug 29 - Fri, Sep 5
United Airlines Logo
7:49 am - 4:07 pmSUX-IAD
7h 18m2 stops
United Airlines Logo
5:17 pm - 10:57 pmIAD-SUX
6h 40m2 stops
$1,213United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Sioux City to District of Columbia flights

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

How long does a flight from Sioux City to District of Columbia take?

The duration of a flight to District of Columbia depends on your arrival airport. The shortest route to District of Columbia from Sioux City is to Washington, D.C., which takes 11h 13m.


Good to know

Cheapest flight$332
Flight from Sioux City to Reagan Washington National Airport

FAQs - booking District of Columbia flights

  • How does KAYAK find such low prices on flights from Sioux City to District of Columbia?

    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 Sioux City to District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sioux City to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sioux City to District of Columbia 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 Sioux City to District of Columbia?

    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 from Sioux City to District of Columbia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sioux City to District of Columbia?

    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 from Sioux City to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to District of Columbia?

    The cheapest time of day to fly to District of Columbia is generally in the afternoon, when round-trip flights cost $385 on average. The most expensive time of day to fly to District of Columbia is generally in the morning, which is peak travel time and where the average cost of a ticket is $486.

Reviews of the top airline flying from Sioux City to District of Columbia

 
See real verified KAYAK customer reviews for airlines flying from Sioux City to District of Columbia. 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 Sioux City to District of Columbia? 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 8904 reviews
7.7Boarding
7.1Entertainment
6.6Food
7.3Comfort
8.1Crew
Airline reviews

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

8.0 ExcellentHal, Jul 2025FRA - IAD
Read more United Airlines reviews

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

Very rough getting into denver. my kid threw up it was so rough.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

United airlines, mediocre at best. No issues , nothing great . Worked for me

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Very nice and clean plane. Transit time between flights was tight though

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Everything you need to know for your flight from Sioux City to District of Columbia

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