WAS - FSD

$167 Find Cheap Flights from Washington, D.C. to Sioux Falls

This is the cheapest round-trip 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 9/29. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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

Mon, Sep 29 - Fri, Oct 3
Frontier Logo
7:00 am - 2:09 pmDCA-FSD
8h 09m1 stop
Frontier Logo
2:54 pm - 9:59 pmFSD-DCA
6h 05m1 stop
$167Frontier
Find Deal
Thu, Nov 13 - Sat, Nov 15
American Airlines Logo
6:00 am - 1:13 pmBWI-FSD
8h 13m1 stop
American Airlines Logo
6:30 am - 2:27 pmFSD-BWI
6h 57m1 stop
$259American Airlines
Find Deal
Sat, Feb 21 - Tue, Feb 24
Delta Logo
6:50 pm - 10:58 pmDCA-FSD
5h 08m1 stop
Delta Logo
5:15 am - 2:02 pmFSD-DCA
7h 47m1 stop
$259Delta
Find Deal
Sat, Feb 21 - Tue, Feb 24
Delta Logo
6:15 am - 12:35 pmIAD-FSD
7h 20m1 stop
Delta Logo
5:15 am - 1:55 pmFSD-IAD
7h 40m1 stop
$259Delta
Find Deal
Wed, Oct 29 - Wed, Nov 5
American Airlines Logo
1:27 pm - 9:16 pmBWI-FSD
8h 49m1 stop
American Airlines Logo
1:08 pm - 11:02 pmFSD-BWI
8h 54m1 stop
$260American Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
American Airlines Logo
12:31 pm - 4:55 pmDCA-FSD
5h 24m1 stop
American Airlines Logo
1:08 pm - 11:00 pmFSD-DCA
8h 52m1 stop
$260American Airlines
Find Deal
Wed, Oct 1 - Sat, Oct 4
United Airlines Logo
5:20 pm - 10:22 pmBWI-FSD
6h 02m1 stop
United Airlines Logo
9:30 am - 7:27 pmFSD-BWI
8h 57m1 stop
$289United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
6:25 am - 10:37 amDCA-FSD
5h 12m1 stop
United Airlines Logo
8:00 am - 2:01 pmFSD-DCA
5h 01m1 stop
$289United Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
 Logo
5:41 pm - 8:42 pmBWI-FSD
28h 01m1 stop
 Logo
2:54 pm - 10:20 amFSD-BWI
18h 26m2 stops
Sat, Oct 4 - Mon, Oct 6
 Logo
8:16 am - 10:51 amBWI-FSD
27h 35m1 stop
 Logo
2:54 pm - 10:20 amFSD-BWI
18h 26m2 stops

Everything you should know

Top airlines
Frontier
Cheapest • from $167 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 36% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$167
Typical prices: $398-577
Frontier
Mon 9/29Fri 10/3
DCA - FSD • 1 stop
Cheapest one-way
$178
Typical prices: $188-258
Frontier
Sun 10/19
DCA - FSD • 1 stop
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 Sioux Falls!
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.

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 December, where the average cost of round-trip tickets is $557 and $554 respectively.

Good to know

Low seasonFebruary
Cheapest flight$167
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Reagan Washington National Airport 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 $178 for a one-way ticket and $167 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?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Washington, D.C. and Sioux Falls, with oneworld 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 $352 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 $480 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 7954 reviews
8.5Crew
7.3Food
7.9Entertainment
8.2Boarding
7.9Comfort
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

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

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The entertainment package was vast and the selections were very current. Keep updating it was great.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

Finally a Frontier on time and efficient. I've had problems before with your airline, but this time everything went fine.

The experience was good. No frills but I got there safe and sound and on time.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

sluggish boarding and arrival procedures, fake nice flight attendants, and lots of delays.

Disaster. They lied every step of the way. We ended up being delayed due to crew and then allegedly abandoned the flight because of a curfew at LGA. No rebooking to LGA at any reasonable time. No hotel. No meal vouchers. Had to sleep in the airport and fly to Newark instead. Will never fly Frontier again.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

Severe turbulence. Captain never came on to reassure passengers after things settled down.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.