SEA - FSD

$88 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 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 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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Everything you should know

Cheapest round-trip
$214
Typical prices: $281-$528
Multiple Airlines
Thu 1/8Thu 1/15
SEA - FSD • 1 stop
Cheapest one-way
$88
Typical prices: $304-$432
Frontier
Sat 1/10
SEA - FSD • 1 stop
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 35% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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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

Thu, Jan 8 - Thu, Jan 15
Multiple Airlines Logo
9:23 pm - 8:41 pm
SEA
-
FSD
21h 18m1 stop
Multiple Airlines Logo
3:56 pm - 11:09 am
FSD
-
SEA
21h 13m1 stop
$214Multiple Airlines
Sat, Jan 17 - Sat, Jan 24
American Airlines Logo
10:50 am - 10:04 pm
SEA
-
FSD
9h 14m1 stop
American Airlines Logo
2:25 pm - 8:35 pm
FSD
-
SEA
8h 10m1 stop
$247American Airlines
Sat, Jan 17 - Sat, Jan 24
United Airlines Logo
3:30 pm - 11:44 pm
SEA
-
FSD
6h 14m1 stop
United Airlines Logo
1:40 pm - 6:26 pm
FSD
-
SEA
6h 46m1 stop
$257United Airlines
Thu, Jan 15 - Sat, Jan 17
United Airlines Logo
10:58 am - 9:50 pm
SEA
-
FSD
8h 52m1 stop
United Airlines Logo
5:18 pm - 9:15 pm
FSD
-
SEA
5h 57m1 stop
$261United Airlines
Sat, Jan 17 - Sat, Jan 24
United Airlines Logo
8:40 am - 9:50 pm
SEA
-
FSD
11h 10m2 stops
United Airlines Logo
1:40 pm - 6:26 pm
FSD
-
SEA
6h 46m1 stop
$262United Airlines
Fri, Jan 23 - Sat, Jan 24
United Airlines Logo
3:30 pm - 11:44 pm
SEA
-
FSD
6h 14m1 stop
United Airlines Logo
11:22 am - 6:14 pm
FSD
-
SEA
8h 52m1 stop
$264United Airlines
Sat, Jan 17 - Sat, Jan 24
United Airlines Logo
8:40 am - 9:50 pm
SEA
-
FSD
11h 10m2 stops
United Airlines Logo
1:40 pm - 9:12 pm
FSD
-
SEA
9h 32m2 stops
$267United Airlines
Thu, Jan 22 - Sat, Jan 24
Delta Logo
3:35 pm - 11:04 pm
SEA
-
FSD
5h 29m1 stop
Delta Logo
4:17 pm - 8:46 pm
FSD
-
SEA
6h 29m1 stop
$269Delta
Wed, Jan 7 - Sat, Jan 17
Delta Logo
3:35 pm - 11:04 pm
SEA
-
FSD
5h 29m1 stop
Delta Logo
4:17 pm - 8:46 pm
FSD
-
SEA
6h 29m1 stop
$284Delta
Thu, Jan 22 - Sat, Jan 24
United Airlines Logo
5:00 am - 12:58 pm
SEA
-
FSD
5h 58m1 stop
United Airlines Logo
5:18 pm - 9:15 pm
FSD
-
SEA
5h 57m1 stop
$289United 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.

How much is a round-trip flight from Seattle 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 Seattle to Sioux Falls departing in January.

What’s the cheapest day of the week to fly from Seattle to Sioux Falls?

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

If your flying dates are flexible, you should consider flying to Sioux Falls on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Seattle to Sioux Falls. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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 $273 (return) on average. On the other hand, the most expensive months are April and May, where the average cost of round-trip tickets is $574 and $545 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 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$88
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 8% 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 $88 for a one-way ticket and $214 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 $438 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 $494 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 8007 reviews
7.9Comfort
8.1Boarding
7.3Food
7.9Entertainment
8.5Crew
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.

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

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.

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

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.

I liked the humor of the captain and crew on the flight from Flagstaff to Dallas. They were humorous.

AA delayed the flight for 3 hours and 50 minutes, but delayed the last 2 hours, 30 minutes at a time, so if we knew before, could have stayed at home and worked instead of being at the airport wasting time... The plane's crew was excellent, not their fault.

After arriving in Dallas, the aircraft taxied for an unusually long time and was unable to park at the gate, which caused a significant delay and made me miss my connecting flight. I then had to wait in a very long line to be rebooked, and I was told that no hotel or meal accommodations would be provided. What is even more unacceptable is that my luggage was mishandled and has still not been located. My suitcase contains important medications that I urgently need, and I have been unable to access them due to the airline’s mishandling. This situation has caused me considerable stress and inconvenience, and I need this issue to be resolved immediately.

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 Seattle to Sioux Falls

Information on your arrival and departure airports