FSD - IAD

$197 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 8/2. 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$319
Typical prices: $495-$479
American Airlines
Thu 9/24Tue 9/29
FSD - IAD • 1 stop
Cheapest one-way
$197
Multiple Airlines
Sun 8/2
FSD - IAD • 2 stops
Top airlines
Cheapest • from $319 (round-trip)
Best reviews • 7.9 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
Cheapest • Avg $420 (round-trip)
Shortest trip • 5h 17m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
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

Thu, Sep 24 - Tue, Sep 29
American Airlines Logo
12:56 pm - 10:52 pm
FSD
-
IAD
8h 56m
1 stop
American Airlines Logo
6:52 am - 12:16 pm
IAD
-
FSD
6h 24m
1 stop
$319American Airlines
Tue, Sep 15 - Sat, Sep 19
American Airlines Logo
12:56 pm - 8:24 pm
FSD
-
IAD
6h 28m
1 stop
American Airlines Logo
7:57 am - 6:11 pm
IAD
-
FSD
11h 14m
2 stops
$324American Airlines
Tue, Sep 15 - Sat, Sep 19
American Airlines Logo
12:56 pm - 10:51 pm
FSD
-
IAD
8h 55m
2 stops
American Airlines Logo
7:57 am - 6:11 pm
IAD
-
FSD
11h 14m
2 stops
$329American Airlines
Fri, Jul 3 - Fri, Jul 10
American Airlines Logo
12:01 pm - 12:10 am
FSD
-
IAD
11h 09m
2 stops
American Airlines Logo
6:33 am - 4:54 pm
IAD
-
FSD
11h 21m
2 stops
$340American Airlines
Wed, Oct 28 - Mon, Nov 2
American Airlines Logo
7:30 am - 5:54 pm
FSD
-
IAD
9h 24m
1 stop
American Airlines Logo
6:04 am - 12:36 pm
IAD
-
FSD
7h 32m
1 stop
$344American Airlines
Fri, Jul 3 - Thu, Jul 9
Multiple Airlines Logo
11:41 am - 8:25 am
FSD
-
IAD
19h 44m
1 stop
Multiple Airlines Logo
3:16 pm - 9:04 am
IAD
-
FSD
18h 48m
1 stop
$352Multiple Airlines
Fri, Jul 3 - Wed, Jul 8
United Airlines Logo
3:07 pm - 9:22 pm
FSD
-
IAD
5h 15m
1 stop
United Airlines Logo
5:42 pm - 11:31 pm
IAD
-
FSD
6h 49m
1 stop
$367United Airlines
Mon, Jul 13 - Sun, Jul 26
Multiple Airlines Logo
9:54 am - 12:47 pm
FSD
-
IAD
25h 53m
2 stops
Multiple Airlines Logo
9:50 am - 10:51 am
IAD
-
FSD
26h 01m
1 stop
$368Multiple Airlines
Wed, Jul 1 - Wed, Jul 8
Delta Logo
5:20 am - 11:43 am
FSD
-
IAD
5h 23m
1 stop
Delta Logo
6:46 pm - 11:06 pm
IAD
-
FSD
5h 20m
1 stop
$369Delta
Wed, Oct 28 - Mon, Nov 2
Delta Logo
5:15 am - 11:33 am
FSD
-
IAD
5h 18m
1 stop
Delta Logo
5:30 pm - 10:12 pm
IAD
-
FSD
5h 42m
1 stop
$370Delta
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 September.

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 $868 and $606 respectively.

Good to know

Low seasonJune
Cheapest flight$197
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly and prices are also 14% 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 5 days, the lowest price for a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport was $197 for a one-way ticket and $319 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Sioux Falls and Washington Dulles Airport, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Sioux Falls to Washington, D.C., Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Sioux Falls to Washington, D.C. are Delta and United Airlines. With an average price for the route of $454 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $403 and an overall rating of 7.4.

  • 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 airlines 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.
7.9
DeltaOverall score based on 8405 reviews
8.1Boarding
7.2Food
8.5Crew
7.8Entertainment
7.8Comfort
Airline reviews

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

2.0 MediocreAnonymous, Jun 2026
RDU - LGA
Read more Delta reviews

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

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.

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

Information on your arrival and departure airports