FSD - IAD

$186 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 1/8. 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
Typical prices: $269-$302
United Airlines
Wed 1/14Wed 1/21
FSD - IAD • 1 stop
Cheapest one-way
$186
Frontier
Thu 1/8
FSD - IAD • 2 stops
Top airlines
United Airlines
Cheapest • from $279 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
January
Cheapest • 43% price drop
March
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

Wed, Jan 14 - Wed, Jan 21
United Airlines Logo
7:30 am - 4:00 pm
FSD
-
IAD
7h 30m1 stop
United Airlines Logo
1:05 pm - 5:18 pm
IAD
-
FSD
5h 13m1 stop
$279United Airlines
Wed, Jan 14 - Wed, Jan 21
Delta Logo
5:00 am - 4:46 pm
FSD
-
IAD
10h 46m2 stops
Delta Logo
7:00 am - 12:22 pm
IAD
-
FSD
6h 22m1 stop
$284Delta
Thu, Feb 12 - Tue, Feb 17
United Airlines Logo
7:40 am - 4:05 pm
FSD
-
IAD
7h 25m1 stop
United Airlines Logo
1:02 pm - 5:21 pm
IAD
-
FSD
5h 19m1 stop
$289United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
7:30 am - 4:00 pm
FSD
-
IAD
7h 30m1 stop
United Airlines Logo
1:05 pm - 5:18 pm
IAD
-
FSD
5h 13m1 stop
$297United Airlines
Wed, Jan 14 - Wed, Jan 21
Delta Logo
5:00 am - 4:46 pm
FSD
-
IAD
10h 46m2 stops
Delta Logo
5:26 pm - 11:04 pm
IAD
-
FSD
6h 38m2 stops
$309Delta
Fri, Feb 27 - Mon, Mar 2
American Airlines Logo
1:12 pm - 10:48 pm
FSD
-
IAD
8h 36m1 stop
American Airlines Logo
6:00 am - 12:33 pm
IAD
-
FSD
7h 33m1 stop
$319American Airlines
Fri, Jan 16 - Mon, Jan 19
United Airlines Logo
7:30 am - 4:00 pm
FSD
-
IAD
7h 30m1 stop
United Airlines Logo
5:17 pm - 9:50 pm
IAD
-
FSD
5h 33m1 stop
$323United Airlines
Thu, Jan 8 - Sun, Jan 11
United Airlines Logo
7:30 am - 4:00 pm
FSD
-
IAD
7h 30m1 stop
United Airlines Logo
5:17 pm - 9:50 pm
IAD
-
FSD
5h 33m1 stop
$324United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
7:30 am - 4:00 pm
FSD
-
IAD
7h 30m1 stop
United Airlines Logo
1:05 pm - 5:18 pm
IAD
-
FSD
5h 13m1 stop
$343United Airlines
Fri, Feb 20 - Mon, Feb 23
Delta Logo
1:00 pm - 11:09 pm
FSD
-
IAD
9h 09m2 stops
Delta Logo
7:00 am - 12:15 pm
IAD
-
FSD
6h 15m1 stop
$344Delta
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 January.

What’s the cheapest day of the week to fly from Sioux Falls to Washington Dulles Airport?

The average price of all round-trip flights from Sioux Falls to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Washington Dulles Airport on a Friday and more expensive on a Monday. On your return trip to Sioux Falls, you should consider flying back on a Saturday, and avoid Mondays for better deals.

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 $279 (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.

Good to know

Low seasonMay
Cheapest flight$186
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly and prices are also 17% 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 $186 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?

    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 $424 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 $479 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 8005 reviews
8.1Boarding
7.9Entertainment
7.3Food
8.5Crew
7.9Comfort
Airline reviews

Great. I had to modify a flight. That was easy and free. Thank You

10.0 ExcellentOlumuyiwa, Dec 2025
DTW - ATL
Read more Delta reviews

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

The food is terrible. The same pasta or chicken with bad taste and presentation

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Great crew, excellent landing, good food. Over all great experience. Thank you!

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

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

Information on your arrival and departure airports