FSD - SEA

$210 Find Cheap Flights from Sioux Falls to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux Falls to Seattle departing on 5/25. 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 Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to Seattle, 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 Sioux Falls to Seattle, as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% 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.

Everything you should know

Cheapest round-trip
$279
Typical prices: $417-$729
United Airlines
Tue 3/24Tue 3/31
FSD - SEA • 1 stop
Cheapest one-way
$210
Typical prices: $330-$468
Frontier
Mon 5/25
FSD - SEA • 1 stop
Top airlines
United Airlines
Cheapest • from $279 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sioux Falls and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Phoenix (PHX)
Cheapest • Avg $348 (round-trip)
Denver (DEN)
Shortest trip • 6h 39m (one-way)
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 24% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 Seattle!
Flight Deals
Booking Insights
Flight Deals

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

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

Tue, Mar 24 - Tue, Mar 31
United Airlines Logo
3:13 pm - 10:45 pm
FSD
-
SEA
9h 32m
1 stop
United Airlines Logo
5:00 am - 12:50 pm
SEA
-
FSD
5h 50m
1 stop
$279United Airlines
Fri, Apr 10 - Wed, Apr 15
United Airlines Logo
6:40 pm - 12:19 am
FSD
-
SEA
7h 39m
1 stop
United Airlines Logo
3:48 pm - 11:44 pm
SEA
-
FSD
5h 56m
1 stop
$284United Airlines
Fri, Apr 17 - Mon, Apr 20
American Airlines Logo
1:41 pm - 9:22 pm
FSD
-
SEA
9h 41m
1 stop
American Airlines Logo
2:57 pm - 11:59 pm
SEA
-
FSD
7h 02m
1 stop
$289American Airlines
Tue, Mar 24 - Tue, Mar 31
United Airlines Logo
9:00 am - 6:50 pm
FSD
-
SEA
11h 50m
2 stops
United Airlines Logo
5:00 am - 12:50 pm
SEA
-
FSD
5h 50m
1 stop
$302United Airlines
Thu, Apr 16 - Tue, Apr 21
United Airlines Logo
6:00 am - 9:46 am
FSD
-
SEA
5h 46m
1 stop
United Airlines Logo
11:35 am - 11:44 pm
SEA
-
FSD
10h 09m
2 stops
$305United Airlines
Sat, Apr 18 - Fri, Apr 24
American Airlines Logo
1:41 pm - 7:36 pm
FSD
-
SEA
7h 55m
1 stop
American Airlines Logo
12:59 am - 12:56 pm
SEA
-
FSD
9h 57m
1 stop
$309American Airlines
Mon, Apr 13 - Fri, Apr 17
Multiple Airlines Logo
7:21 pm - 9:27 am
FSD
-
SEA
16h 06m
1 stop
Multiple Airlines Logo
4:20 pm - 12:36 pm
SEA
-
FSD
18h 16m
2 stops
$325Multiple Airlines
Wed, Apr 15 - Sun, Apr 19
Multiple Airlines Logo
2:35 pm - 9:27 am
FSD
-
SEA
20h 52m
2 stops
Multiple Airlines Logo
7:12 pm - 7:21 pm
SEA
-
FSD
22h 09m
1 stop
$337Multiple Airlines
Wed, Jul 29 - Tue, Aug 4
American Airlines Logo
5:34 pm - 12:57 am
FSD
-
SEA
9h 23m
1 stop
American Airlines Logo
5:05 am - 4:52 pm
SEA
-
FSD
9h 47m
1 stop
$339American Airlines
Tue, Aug 11 - Tue, Aug 18
Delta Logo
5:15 am - 8:50 am
FSD
-
SEA
5h 35m
1 stop
Delta Logo
11:53 pm - 10:00 am
SEA
-
FSD
8h 07m
1 stop
$354Delta
Booking Insights

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

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

How much is a round-trip flight from Sioux Falls to Seattle?

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sioux Falls to Seattle, 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 Sioux Falls to Seattle is January, where tickets cost $306 (return) on average. On the other hand, the most expensive months are June and March, where the average cost of round-trip tickets is $566 and $511 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sioux Falls to Seattle, 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 Sioux Falls to Seattle, you should book around 2 weeks before departure, which saves you about 28% 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$210
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Sioux Falls to Seattle

When to book flights from Sioux Falls to Seattle

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

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

    In the last 3 days, the lowest price for a flight from Sioux Falls to Seattle was $210 for a one-way ticket and $279 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Sioux Falls to Seattle?

    Sioux Falls airport is called Sioux Falls Joe Foss Field and the only airport in Seattle is Seattle/Tacoma Intl.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Sioux Falls to Seattle are Delta and United Airlines. With an average price for the route of $441 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 $504 and an overall rating of 7.4.

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

    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 Sioux Falls to Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Sioux Falls 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 Sioux Falls to Seattle?

    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 Seattle with an airline and back to Sioux Falls with another airline. Booking your flights between Sioux Falls and SEA 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 Sioux Falls to Seattle?

    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 Seattle from Sioux Falls 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 Sioux Falls to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Sioux Falls to Seattle. 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 Sioux Falls to Seattle? 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 8237 reviews
8.5Crew
7.9Comfort
8.1Boarding
7.8Entertainment
7.2Food
Airline reviews

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

6.0 GoodAnonymous, Feb 2026
RDU - SEA
Read more Delta reviews

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

two hour delay and the Delta representative on the PA system was unable to understand

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

it was a very short flight so my expectations were low.

As great a red-eye flight as red-eye flights can be.

Lack of gluten free options in food service. I have Celiac disease and it appears you no longer offer special meals for people with dietary restrictions. I am a frequent flyer traveling into and out of Omaha airport. I have noticed over the course of several months that although our flight typically arrives ahead of schedule (awesome job AA!) - we typically sit on the runway for several minutes waiting for the ground crew to get in place. Not sure if it is a ground crew issue or a gate availability issue (due to construction at this airport). Seems to be more of a ground crew being on time issue.

Arrived early picked up my bag in a few minutes- great trip - thank you

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

Boarding is always an ordeal. Less dogs on flights. I am highly allergic to dogs and cats. Why are there so many animals these days?

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

There was a delay with the plan which cause the flight to leave later and once arrived in Chicago there was another delay and some passengers missed their connecting flights

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

Worst experience ever. Flight could not land in Charlotte for what we were told was a ground stop. Had to be diverted to Raleigh to refuel. Strangely during ground stop, our connecting flight had no issue taking off on time causing us to miss our flight. We were told there were no other flights that day to our final destination and that two days out was the next one. The only flights to get us there were from Chicago the next morning. Completely opposite direction but it was a direct flight. So we get flown to Chicago and have to find a hotel in our own dime. The flight in the morning was also delayed. Thankfully only a short time. The non too of all this, our luggage did not arrive by the time we were there. Communication was terrible, through the entire trip. Complete incompetence. Will never fly American again.

I am an AA flyer for a very long time... AA has yet to disappoint.

Flight was delayed. Not much information on when the flight would take off. Eventually we were told it was maintenance. App was not giving updates.

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.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

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

Information on your arrival and departure airports