FSD - IAD

$167 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 5/26. 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
$299
Typical prices: $523-$422
United Airlines
อ. 6/9พ. 8/5
FSD - IAD • 1 stop
Cheapest one-way
$167
Multiple Airlines
อ. 5/26
FSD - IAD • 2 stops
Top airlines
United Airlines
Cheapest • from $299 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sioux Falls and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Chicago (ORD)
Cheapest • Avg $416 (round-trip)
Minneapolis (MSP)
Shortest trip • 5h 16m (one-way)
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 100% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 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

อ., มิ.ย. 9 - พ., ส.ค. 5
United Airlines Logo
6:37 pm - 12:45 am
FSD
-
IAD
5h 08m
1 stop
United Airlines Logo
3:30 pm - 10:07 pm
IAD
-
FSD
7h 37m
1 stop
$299United Airlines
ส., มิ.ย. 6 - อ., มิ.ย. 9
Delta Logo
1:35 pm - 12:51 am
FSD
-
IAD
10h 16m
2 stops
Delta Logo
6:14 am - 10:16 am
IAD
-
FSD
5h 02m
1 stop
$304Delta
อ., ก.ย. 1 - จ., ก.ย. 7
United Airlines Logo
6:37 pm - 12:44 am
FSD
-
IAD
5h 07m
1 stop
United Airlines Logo
3:40 pm - 9:52 pm
IAD
-
FSD
7h 12m
1 stop
$319United Airlines
ส., มิ.ย. 6 - อ., มิ.ย. 9
Delta Logo
1:35 pm - 12:51 am
FSD
-
IAD
10h 16m
2 stops
Delta Logo
6:14 am - 10:16 am
IAD
-
FSD
5h 02m
1 stop
$322Delta
พ., พ.ค. 27 - พ., มิ.ย. 3
Delta Logo
5:20 am - 11:39 am
FSD
-
IAD
5h 19m
1 stop
Delta Logo
6:00 am - 12:49 pm
IAD
-
FSD
7h 49m
1 stop
$328Delta
จ., ส.ค. 31 - ส., ก.ย. 5
Delta Logo
5:15 am - 4:25 pm
FSD
-
IAD
10h 10m
2 stops
Delta Logo
4:00 pm - 10:09 pm
IAD
-
FSD
7h 09m
1 stop
$333Delta
พ., พ.ค. 20 - อา., พ.ค. 24
Delta Logo
4:16 pm - 11:39 pm
FSD
-
IAD
6h 23m
1 stop
Delta Logo
6:00 am - 12:49 pm
IAD
-
FSD
7h 49m
1 stop
$339Delta
อ., พ.ค. 26 - จ., มิ.ย. 1
Multiple Airlines Logo
1:21 pm - 11:09 pm
FSD
-
IAD
32h 48m
2 stops
Multiple Airlines Logo
7:27 pm - 12:31 pm
IAD
-
FSD
18h 04m
1 stop
$340Multiple Airlines
พ., พ.ค. 20 - อา., พ.ค. 24
Delta Logo
4:16 pm - 11:39 pm
FSD
-
IAD
6h 23m
1 stop
Delta Logo
6:00 am - 12:49 pm
IAD
-
FSD
7h 49m
2 stops
$344Delta
อ., มิ.ย. 9 - พ., ส.ค. 5
Delta Logo
1:53 pm - 11:14 pm
FSD
-
IAD
8h 21m
2 stops
Delta Logo
5:26 pm - 11:06 pm
IAD
-
FSD
6h 40m
2 stops
$349Delta
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.

How much is a round-trip flight from Sioux Falls to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport departing in June.

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 February, where tickets cost $0 (return) on average. On the other hand, the most expensive months are November and April, where the average cost of round-trip tickets is $646 and $606 respectively.

Find deals

Good to know

Cheapest flight$167
Most popular time to fly and prices are also 3% 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 $167 for a one-way ticket and $299 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 9675 reviews
6.6Food
7.7Boarding
7.1Entertainment
7.3Comfort
8.1Crew
Airline reviews

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

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

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

My bags were misplaced!!! Im in a foreign country with no bags

I liked that it was on time, however, the food was not good.

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

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)