WAS - FSD

$135 Find Cheap Flights from Washington, D.C. to Sioux Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Sioux Falls departing on 1/10. 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 Sioux Falls

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

Cheapest round-trip
$191
Overall average: $273
Frontier
Thu 1/8Sun 1/11
DCA - FSD • 1 stop
Cheapest one-way
$135
Frontier
Sat 1/10
BWI - FSD • 2 stops
Top airlines
Frontier
Cheapest • from $191 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 31% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Sioux Falls (WAS-FSD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Sioux Falls 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 Washington, D.C. to Sioux Falls

Thu, Jan 8 - Sun, Jan 11
Frontier Logo
8:01 am - 7:00 pm
DCA
-
FSD
11h 59m1 stop
Frontier Logo
8:26 pm - 1:01 pm
FSD
-
DCA
15h 35m1 stop
$191Frontier
Thu, Jan 8 - Sun, Jan 11
Multiple Airlines Logo
6:00 pm - 9:57 am
DCA
-
FSD
16h 57m2 stops
Multiple Airlines Logo
8:26 pm - 4:59 pm
FSD
-
DCA
19h 33m1 stop
$249Multiple Airlines
Mon, Jan 12 - Mon, Jan 19
United Airlines Logo
6:00 pm - 9:50 pm
DCA
-
FSD
4h 50m1 stop
United Airlines Logo
7:30 am - 3:32 pm
FSD
-
DCA
7h 02m1 stop
$279United Airlines
Mon, Jan 12 - Mon, Jan 19
United Airlines Logo
5:17 pm - 9:50 pm
IAD
-
FSD
5h 33m1 stop
United Airlines Logo
7:30 am - 4:00 pm
FSD
-
IAD
7h 30m1 stop
$279United Airlines
Thu, Jan 29 - Sun, Feb 1
American Airlines Logo
6:00 am - 11:51 am
BWI
-
FSD
6h 51m1 stop
American Airlines Logo
6:15 pm - 11:52 pm
FSD
-
BWI
4h 37m1 stop
$279American Airlines
Mon, Jan 12 - Mon, Jan 19
Delta Logo
6:59 pm - 11:04 pm
DCA
-
FSD
5h 05m1 stop
Delta Logo
1:02 pm - 10:57 pm
FSD
-
DCA
8h 55m2 stops
$284Delta
Thu, Jan 29 - Sun, Feb 1
American Airlines Logo
2:46 pm - 10:04 pm
BWI
-
FSD
8h 18m2 stops
American Airlines Logo
6:15 pm - 11:52 pm
FSD
-
BWI
4h 37m1 stop
$284American Airlines
Mon, Jan 12 - Mon, Jan 19
Delta Logo
2:32 pm - 11:04 pm
DCA
-
FSD
9h 32m2 stops
Delta Logo
1:02 pm - 10:57 pm
FSD
-
DCA
8h 55m2 stops
$289Delta
Thu, Feb 12 - Mon, Feb 16
American Airlines Logo
11:59 am - 7:06 pm
BWI
-
FSD
8h 07m1 stop
American Airlines Logo
12:19 pm - 5:54 pm
FSD
-
BWI
4h 35m1 stop
$309American Airlines
Thu, Jan 8 - Sun, Jan 11
Delta Logo
6:05 am - 12:22 pm
DCA
-
FSD
7h 17m2 stops
Delta Logo
5:00 am - 1:54 pm
FSD
-
DCA
7h 54m2 stops
$309Delta
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Sioux Falls flights

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

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

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

What’s the cheapest day of the week to fly from Washington, D.C. to Sioux Falls?

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

If you are looking for a flight deal from Washington, D.C. to Sioux Falls, look for departures on Saturdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Sioux Falls, Friday is the cheapest day to fly and Monday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Sioux Falls, 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 Washington, D.C. to Sioux Falls is February, where tickets cost $258 (return) on average. On the other hand, the most expensive months are April and June, where the average cost of round-trip tickets is $557 and $523 respectively.

Good to know

Low seasonFebruary
Cheapest flight$135
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Baltimore to Sioux Falls

When to book flights from Washington, D.C. to Sioux Falls

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Sioux Falls 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 flights from Washington, D.C. to Sioux Falls

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Sioux Falls was $135 for a one-way ticket and $191 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Sioux Falls?

    No

  • Which airports will I be using when flying from Washington, D.C. to Sioux Falls?

    Washington, D.C. is served by 2 major airports and there is only 1 main airport in Sioux Falls. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Sioux Falls Joe Foss Field.

  • Which aircraft models fly most regularly from Washington, D.C. to Sioux Falls?

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

  • Which airline alliances offer flights from Washington, D.C. to Sioux Falls?

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

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Sioux Falls are Delta and United Airlines. With an average price for the route of $340 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 $444 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Sioux Falls?

    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 Washington, D.C. to Sioux Falls.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux Falls from Washington, D.C. 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 Washington, D.C. to Sioux Falls?

    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 Sioux Falls with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Sioux Falls?

    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 Sioux Falls from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Washington, D.C. to Sioux Falls

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Sioux Falls. 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 Washington, D.C. to Sioux Falls? 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 8007 reviews
7.3Food
7.9Comfort
8.5Crew
8.1Boarding
7.9Entertainment
Airline reviews

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)

6.0 GoodJeff, Dec 2025
JFK - MIA
Read more Delta reviews

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! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

A little late at the start but all worked out well.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

We were told the flight was delayed 5 times, then it was moved to the next day.

I have a gluten allergy so did have any food

Not clean and was told I would get a great seat and it was not great at all

Flight got delayed for 5 hours no good explanation was offered ;(

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Everything you need to know for your flight from Washington, D.C. to Sioux Falls

Information on your arrival and departure airports