SEA - FSD

$202 Find Cheap Flights from Seattle 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 Seattle to Sioux Falls departing on 8/4. 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 Seattle 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 Seattle to Sioux Falls, 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
$239
Overall average: $566
Frontier
Tue 5/5Mon 5/11
SEA - FSD • 1 stop
Cheapest one-way
$202
Typical prices: $234-$416
Multiple Airlines
Tue 8/4
SEA - FSD • 1 stop
Top airlines
Cheapest • from $239 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Seattle and Sioux Falls. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $396 (round-trip)
Shortest trip • 6h 27m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 35% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 37% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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We hope you love your trip to Sioux Falls!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Sioux Falls (SEA-FSD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle 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 Seattle to Sioux Falls

Tue, May 5 - Mon, May 11
Frontier Logo
7:50 pm - 6:33 pm
SEA
-
FSD
20h 43m
1 stop
Frontier Logo
4:07 pm - 9:49 am
FSD
-
SEA
19h 42m
1 stop
$239Frontier
Sun, May 3 - Fri, May 8
Frontier Logo
7:12 pm - 7:11 pm
SEA
-
FSD
21h 59m
1 stop
Frontier Logo
4:07 pm - 9:49 am
FSD
-
SEA
19h 42m
1 stop
$240Frontier
Sun, May 3 - Mon, May 11
Frontier Logo
7:12 pm - 7:11 pm
SEA
-
FSD
21h 59m
1 stop
Frontier Logo
4:07 pm - 9:49 am
FSD
-
SEA
19h 42m
1 stop
$270Frontier
Thu, May 28 - Mon, Jun 1
Frontier Logo
3:19 pm - 3:44 pm
SEA
-
FSD
22h 25m
1 stop
Frontier Logo
4:29 pm - 10:06 am
FSD
-
SEA
19h 37m
1 stop
$292Frontier
Mon, Mar 30 - Fri, Apr 3
Frontier Logo
12:24 pm - 7:59 pm
SEA
-
FSD
5h 35m
1 stop
Frontier Logo
7:21 pm - 11:37 am
FSD
-
SEA
18h 16m
1 stop
$299Frontier
Mon, Apr 13 - Mon, Apr 20
Multiple Airlines Logo
10:09 pm - 1:45 pm
SEA
-
FSD
37h 36m
2 stops
Multiple Airlines Logo
8:06 pm - 9:27 am
FSD
-
SEA
15h 21m
1 stop
$306Multiple Airlines
Tue, May 5 - Wed, May 13
Frontier Logo
7:50 pm - 6:33 pm
SEA
-
FSD
20h 43m
1 stop
Frontier Logo
7:18 pm - 9:49 am
FSD
-
SEA
16h 31m
1 stop
$316Frontier
Thu, Apr 23 - Sat, Apr 25
American Airlines Logo
12:59 am - 12:56 pm
SEA
-
FSD
9h 57m
1 stop
American Airlines Logo
6:00 am - 1:15 pm
FSD
-
SEA
9h 15m
1 stop
$329American Airlines
Wed, Apr 29 - Tue, May 5
United Airlines Logo
5:00 am - 12:50 pm
SEA
-
FSD
5h 50m
1 stop
United Airlines Logo
11:25 am - 6:32 pm
FSD
-
SEA
9h 07m
2 stops
$334United Airlines
Tue, May 5 - Wed, May 13
Multiple Airlines Logo
7:50 pm - 6:33 pm
SEA
-
FSD
20h 43m
1 stop
Multiple Airlines Logo
2:35 pm - 10:22 am
FSD
-
SEA
21h 47m
1 stop
$337Multiple Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Sioux Falls flights

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

What is the cheapest month to fly from Seattle to Sioux Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle 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 Seattle to Sioux Falls is October, where tickets cost $278 (return) on average. On the other hand, the most expensive months are February and April, where the average cost of round-trip tickets is $860 and $566 respectively.

How far in advance should I book a flight from Seattle to Sioux Falls?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Sioux Falls, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Sioux Falls, you should book around 3 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$202
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Seattle to Sioux Falls

When to book flights from Seattle to Sioux Falls

Are your dates flexible? Find out the best times to travel from Seattle 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 Seattle to Sioux Falls

  • What is the baggage allowance for flights from Seattle to Sioux Falls?

    Baggage allowance varies depending on the airline and fare type you choose. All passengers on American Airlines, regardless of the fare type, can bring a personal item and carry-on free of charge. Checked bags of up to 50 lbs will cost extra unless you upgrade to Business class. When checking bags, we suggest prepaying for them to save time and money at the airport.

  • Which airlines flying from Seattle to Sioux Falls are family-friendly?

    Frontier Airlines has several programs to cater to families when booking. The Works bundle is great for families looking for flexibility with their travel plans. With this plan, you can select your seat, board first, and change your flight with no fee. Families can take advantage of priority boarding at the airport and onboard, kids can collect trading cards and get their own flight certificate signed by the crew.

  • Which airline is recommended for people with special needs?

    Delta, United, and American Airlines all provide wheelchair assistance for passengers with limited mobility. With Delta, you can arrange a wheelchair and have it waiting when you arrive at the airport. They also have special aisle chairs that can be used for getting around the aircraft, boarding, and deplaning. Delta also offers services for those with limited sight or hearing. All services can be arranged after booking using the Accessibility Service Request form at least 48 hours before the flight.

  • Which is the most sustainable way to fly from Seattle to Sioux Falls?

    Eco-minded travelers might enjoy the initiatives Frontier is taking to be more green. In their flights and operations, they have programs to protect the environment. They operate the youngest fleet in the industry, which has helped them to save 43% in fuel emissions. On the aircraft, they’ve introduced lighter seats and biodegradable cups.

  • What is the cheapest flight from Seattle to Sioux Falls?

    In the last 3 days, the lowest price for a flight from Seattle to Sioux Falls was $202 for a one-way ticket and $239 for a round-trip.

  • Do I need a passport to fly between Seattle and Sioux Falls?

    No, a passport isn't needed to fly from Seattle to Sioux Falls. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Seattle to Sioux Falls?

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

  • Which airline alliances offer flights from Seattle to Sioux Falls?

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

  • Which is the best airline for flights from Seattle to Sioux Falls, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Sioux Falls are Delta and United Airlines. With an average price for the route of $479 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 $512 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Seattle 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 Seattle to Sioux Falls.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux Falls from Seattle 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 Seattle 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 Seattle with another airline. Booking your flights between Seattle and FSD 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 Seattle 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 Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Sioux Falls

  • While there are no direct flights from Seattle (SEA) to Sioux Falls (FSD), most flights have just one layover. Denver (DEN), Minneapolis (MSP), and Dallas, (DFW) are the most common cities where you might stop along this route.
  • Frontier is a budget airline with low fares, which means all extra services will have a separate charge. However, they offer different packages and bundles that combine services to save you money.
  • Passengers on Delta Air Lines should consider joining the SkyMiles rewards program. All SkyMiles members can enjoy free Wi-Fi during their flights. You can earn miles each time you fly in the Main Cabin or above.
  • The Basic Economy fare on Delta is a good option for budget travelers who aren’t bringing a lot of luggage. One personal item and a carry-on bag are allowed free of charge. Any other services like seat selection and priority boarding will cost extra.
  • You will arrive at Sioux Falls Regional Airport (FSD) which is located just a few miles north of the city. There is no public transportation, but you will find plenty of taxis and ride-share services to take you where you need to go.

Reviews of the top 4 airlines serving from Seattle to Sioux Falls

 
See real verified KAYAK customer reviews for airlines flying from Seattle 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 Seattle 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 8288 reviews
7.8Entertainment
7.9Comfort
7.2Food
8.1Boarding
8.5Crew
Airline reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

10.0 ExcellentDebra, Mar 2026
PBI - ATL
Read more Delta reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

Flights were constantly delayed. CRW took 50 minutes to get bags

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Everything you need to know for your flight from Seattle to Sioux Falls

Information on your arrival and departure airports