SEA - FSD

$137 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 6/11. 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
$211
Typical prices: $576-$375
Frontier
Thu 5/28Wed 6/3
SEA - FSD • 1 stop
Cheapest one-way
$137
Typical prices: $119-$377
Frontier
Thu 6/11
SEA - FSD • 1 stop
Top airlines
Cheapest • from $211 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Sioux Falls. You'll need at least 1 connection.
Insights
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Insights
Top layover airports
Cheapest • Avg $397 (round-trip)
Shortest trip • 6h 33m (one-way)
Insights
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 38% price drop
Most popular
Good to know
Good to know
+1
+1
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Good to know
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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!
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, May 28 - Wed, Jun 3
Frontier Logo
7:50 pm - 3:40 pm
SEA
-
FSD
17h 50m
1 stop
Frontier Logo
7:18 pm - 10:06 am
FSD
-
SEA
16h 48m
1 stop
$211Frontier
Thu, Jun 18 - Mon, Jun 22
Frontier Logo
7:41 pm - 7:19 pm
SEA
-
FSD
21h 38m
1 stop
Frontier Logo
8:14 pm - 9:48 am
FSD
-
SEA
15h 34m
1 stop
$281Frontier
Sat, May 23 - Sat, Jun 6
United Airlines Logo
1:30 pm - 11:53 pm
SEA
-
FSD
8h 23m
2 stops
United Airlines Logo
6:37 pm - 11:59 pm
FSD
-
SEA
7h 22m
1 stop
$334United Airlines
Thu, Jul 23 - Fri, Aug 7
Frontier Logo
7:41 pm - 7:23 pm
SEA
-
FSD
21h 42m
1 stop
Frontier Logo
8:14 pm - 2:19 pm
FSD
-
SEA
20h 05m
1 stop
$346Frontier
Wed, Jun 17 - Sat, Jun 20
American Airlines Logo
5:10 am - 4:55 pm
SEA
-
FSD
9h 45m
1 stop
American Airlines Logo
5:35 pm - 12:59 am
FSD
-
SEA
9h 24m
1 stop
$349American Airlines
Thu, May 28 - Wed, Jun 3
Frontier Logo
7:50 pm - 3:40 pm
SEA
-
FSD
17h 50m
1 stop
Frontier Logo
7:18 pm - 6:35 pm
FSD
-
SEA
25h 17m
2 stops
$351Frontier
Sun, May 24 - Sun, May 31
Multiple Airlines Logo
7:50 pm - 3:40 pm
SEA
-
FSD
17h 50m
1 stop
Multiple Airlines Logo
9:38 pm - 6:35 pm
FSD
-
SEA
46h 57m
2 stops
$371Multiple Airlines
Wed, Jul 8 - Tue, Jul 14
American Airlines Logo
5:05 am - 4:54 pm
SEA
-
FSD
9h 49m
1 stop
American Airlines Logo
4:49 pm - 11:35 pm
FSD
-
SEA
8h 46m
1 stop
$389American Airlines
Fri, Jun 12 - Sun, Jun 14
Delta Logo
6:05 am - 1:10 pm
SEA
-
FSD
5h 05m
1 stop
Delta Logo
5:00 am - 8:50 am
FSD
-
SEA
5h 50m
1 stop
$394Delta
Thu, Jul 23 - Fri, Aug 7
Multiple Airlines Logo
11:54 am - 10:56 am
SEA
-
FSD
21h 02m
2 stops
Multiple Airlines Logo
11:42 am - 10:39 am
FSD
-
SEA
24h 57m
1 stop
$409Multiple 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 May.

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 $662 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 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$137
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 14% 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 $137 for a one-way ticket and $211 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 $471 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 $500 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 8465 reviews
8.5Crew
7.8Entertainment
7.2Food
8.1Boarding
7.9Comfort
Airline reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

4.0 OkayBradley, Apr 2026
RDU - ATL
Read more Delta reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

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.

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

Information on your arrival and departure airports