FSD - IAD

$203 Find Cheap Flights from Sioux Falls to Washington Dulles Airport

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 Falls to Dulles Intl departing on 4/16. 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 Washington, D.C. Dulles Intl Airport

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

Cheapest round-trip
$279
Overall average: $758
American Airlines
Fri 2/27Fri 3/6
FSD - IAD • 1 stop
Cheapest one-way
$203
Multiple Airlines
Thu 4/16
FSD - IAD • 1 stop
Top airlines
Delta
Cheapest • from $279 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
January
Cheapest • 30% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sioux Falls to Dulles Intl (FSD-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux Falls to Dulles Intl 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 Falls to Dulles Intl

Fri, Feb 27 - Fri, Mar 6
American Airlines Logo
1:26 pm - 10:53 pm
FSD
-
IAD
8h 27m
1 stop
American Airlines Logo
6:00 am - 12:41 pm
IAD
-
FSD
7h 41m
1 stop
$279American Airlines
Fri, Feb 27 - Fri, Mar 6
American Airlines Logo
1:26 pm - 10:53 pm
FSD
-
IAD
8h 27m
1 stop
American Airlines Logo
5:00 am - 12:41 pm
IAD
-
FSD
8h 41m
2 stops
$284American Airlines
Fri, Mar 6 - Sun, Mar 8
United Airlines Logo
6:35 pm - 11:59 pm
FSD
-
IAD
4h 24m
1 stop
United Airlines Logo
6:15 am - 10:46 am
IAD
-
FSD
5h 31m
1 stop
$294United Airlines
Mon, Feb 23 - Wed, Mar 4
Delta Logo
4:19 pm - 11:55 pm
FSD
-
IAD
6h 36m
1 stop
Delta Logo
7:00 am - 12:15 pm
IAD
-
FSD
6h 15m
1 stop
$299Delta
Mon, Feb 23 - Wed, Mar 4
Delta Logo
4:19 pm - 11:55 pm
FSD
-
IAD
6h 36m
1 stop
Delta Logo
6:00 am - 12:15 pm
IAD
-
FSD
7h 15m
2 stops
$304Delta
Wed, Mar 4 - Sat, Mar 7
American Airlines Logo
1:26 pm - 10:53 pm
FSD
-
IAD
8h 27m
1 stop
American Airlines Logo
6:00 am - 12:42 pm
IAD
-
FSD
7h 42m
1 stop
$319American Airlines
Wed, Mar 4 - Sat, Mar 7
Delta Logo
4:19 pm - 11:55 pm
FSD
-
IAD
6h 36m
1 stop
Delta Logo
6:00 am - 3:34 pm
IAD
-
FSD
10h 34m
2 stops
$324Delta
Wed, Mar 4 - Sat, Mar 7
Delta Logo
5:00 am - 4:28 pm
FSD
-
IAD
10h 28m
2 stops
Delta Logo
6:00 am - 3:34 pm
IAD
-
FSD
10h 34m
2 stops
$329Delta
Sun, Mar 29 - Sun, Apr 5
United Airlines Logo
6:35 pm - 12:15 am
FSD
-
IAD
4h 40m
1 stop
United Airlines Logo
6:15 am - 10:42 am
IAD
-
FSD
5h 27m
1 stop
$363United Airlines
Fri, Feb 20 - Mon, Feb 23
Delta Logo
4:19 pm - 11:55 pm
FSD
-
IAD
6h 36m
1 stop
Delta Logo
5:13 pm - 10:55 pm
IAD
-
FSD
6h 42m
2 stops
$364Delta
Booking Insights

KAYAK's insights & trends for Sioux Falls to Dulles Intl flights

Get data-powered insights and trends into flights from Sioux Falls to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Sioux Falls to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sioux Falls to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sioux Falls to Washington, D.C. Dulles Intl Airport is January, where tickets cost $355 (return) on average. On the other hand, the most expensive months are February and November, where the average cost of round-trip tickets is $758 and $646 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$203
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Sioux Falls to Washington Dulles Airport

When to book flights from Sioux Falls to Dulles Intl

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

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

    In the last 3 days, the lowest price for a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport was $203 for a one-way ticket and $279 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

    On your way to Washington Dulles Airport, you’ll fly out from Sioux Falls Joe Foss Field. You’ll be landing at Washington, D.C. Dulles Intl.

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

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

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

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

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

    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 Falls to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sioux Falls to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Sioux Falls 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 Falls to Washington Dulles Airport?

    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 Washington Dulles Airport with an airline and back to Sioux Falls with another airline. Booking your flights between Sioux Falls and IAD 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 Sioux Falls to Washington Dulles Airport?

    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 Washington Dulles Airport from Sioux Falls 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 Sioux Falls to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Sioux Falls to Washington, D.C.. 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 Falls to Dulles Intl? 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 9222 reviews
8.1Crew
6.6Food
7.7Boarding
7.3Comfort
7.1Entertainment
Airline reviews

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

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

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

The seats were comfortable and we had leg room. Great entertainment.

The flight crew where really good. Better then the crew from BNE to SFO

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

l really enjoy very much the flight was very pleasant

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

Everything you need to know for your flight from Sioux Falls to Dulles Intl

Information on your arrival and departure airports

Sioux Falls (FSD)
Dulles Intl (IAD)