£285 Cheap Flights from Sioux Falls (FSD) to Seattle (SEA)

View £285 flight on Sat, 9 May 2026Opens in a new window

Popular airlines from Sioux Falls Regional Airport (FSD) to Seattle-Tacoma International Airport (SEA)

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

Prices were available within the past 7 days and start at £285 for one-way flights and £306 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 9 May - Sat, 29 Aug
FSD
Sioux Falls
SEA
Seattle
£306 Return, found 1 day ago
£306
Return
found 1 day ago
Select American Airlines flight, departing Sat, 9 May from Sioux Falls to Seattle, returning Sat, 29 Aug, priced at £306 found 1 day ago
Delta
Thu, 7 May - Tue, 1 Sept
FSD
Sioux Falls
SEA
Seattle
£339 Return, found 1 day ago
£339
Return
found 1 day ago
Select Delta flight, departing Thu, 7 May from Sioux Falls to Seattle, returning Tue, 1 Sept, priced at £339 found 1 day ago
United
Sat, 9 May - Tue, 1 Sept
FSD
Sioux Falls
SEA
Seattle
£343 Return, found 1 day ago
£343
Return
found 1 day ago
Select United flight, departing Sat, 9 May from Sioux Falls to Seattle, returning Tue, 1 Sept, priced at £343 found 1 day ago
Delta
Tue, 12 May - Wed, 26 Aug
FSD
Sioux Falls
SEA
Seattle
£345 Return, found 1 day ago
£345
Return
found 1 day ago
Select Delta flight, departing Tue, 12 May from Sioux Falls to Seattle, returning Wed, 26 Aug, priced at £345 found 1 day ago
Delta
Thu, 7 May - Thu, 27 Aug
FSD
Sioux Falls
SEA
Seattle
£347 Return, found 1 day ago
£347
Return
found 1 day ago
Select Delta flight, departing Thu, 7 May from Sioux Falls to Seattle, returning Thu, 27 Aug, priced at £347 found 1 day ago
American Airlines
Sat, 9 May - Sat, 29 Aug
FSD
Sioux Falls
SEA
Seattle
£349 Return, found 1 day ago
£349
Return
found 1 day ago
Select American Airlines flight, departing Sat, 9 May from Sioux Falls to Seattle, returning Sat, 29 Aug, priced at £349 found 1 day ago
American Airlines
Sat, 9 May - Sat, 29 Aug
FSD
Sioux Falls
SEA
Seattle
£358 Return, found 1 day ago
£358
Return
found 1 day ago
Select American Airlines flight, departing Sat, 9 May from Sioux Falls to Seattle, returning Sat, 29 Aug, priced at £358 found 1 day ago
Delta
Thu, 7 May - Mon, 31 Aug
FSD
Sioux Falls
SEA
Seattle
£358 Return, found 1 day ago
£358
Return
found 1 day ago
Select Delta flight, departing Thu, 7 May from Sioux Falls to Seattle, returning Mon, 31 Aug, priced at £358 found 1 day ago
Delta
Fri, 8 May - Thu, 27 Aug
FSD
Sioux Falls
SEA
Seattle
£362 Return, found 1 day ago
£362
Return
found 1 day ago
Select Delta flight, departing Fri, 8 May from Sioux Falls to Seattle, returning Thu, 27 Aug, priced at £362 found 1 day ago
Alaska Airlines
Thu, 7 May - Sat, 29 Aug
FSD
Sioux Falls
SEA
Seattle
£369 Return, found 1 day ago
£369
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 7 May from Sioux Falls to Seattle, returning Sat, 29 Aug, priced at £369 found 1 day ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from £343
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from £343

Frequently asked questions

How much is a flight from FSD to SEA?
Based on fares offered within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from Joe Foss Field to SEA start from £306. Book now to secure the best price for your exciting adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Joe Foss Field to Seattle - Tacoma Intl. Airport (SEA)?
Each air carrier has its own set of terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from Sioux Falls Regional Airport (FSD) to Seattle - Tacoma Intl. Airport (SEA) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Joe Foss Field to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from FSD to Sea-Tac Airport?
You'll be soaring through the sky for a while, as the flight distance from Joe Foss Field to SEA is 2,000 kilometres. Create a playlist of your favourite songs before you leave home to stay entertained during your flight.
Which airlines fly direct from FSD to Sea-Tac Airport?
Unfortunately, there are no airlines that directly fly between Joe Foss Field and Sea-Tac Airport. You'll need to book a flight with one or more stops.
Are Sioux Falls Regional Airport (FSD) to SEA flight tickets cheaper when they're purchased at the last minute?
Flight prices fluctuate, so not always. While last-minute flight deals between Sioux Falls Regional Airport (FSD) and SEA are possible, it also makes sense to keep track of prices well before you fly. In fact, some carriers advertise their prices up to 12 months ahead of the departure date. Expedia is constantly updating the biggest airfare bargains around, so check back often and be ready to pounce when the price is low.

Frequently asked questions

How much does a flight from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
One-way flights typically cost between £545 and £1,307 and return flights often range between £744 and £1,654. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
How do I find cheap flights from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 31 connecting flights per day from Sioux Falls Regional (FSD) to Seattle - Tacoma Intl. (SEA). Some common connection points include O'Hare Intl. (ORD), Denver Intl. (DEN), and Minneapolis - St. Paul Intl. (MSP).
What is the earliest flight from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs at approximately 5:00 AM local time, operated by Delta Air Lines. This is a seasonal service active in January, February, March, May, and June. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from Sioux Falls Regional (FSD) to Seattle - Tacoma Intl. (SEA) on a Friday, with around 22 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, American Airlines, and Delta Air Lines. Flight schedules are consistent throughout the week, with only a slight variation in the number of flights.
What are the most popular departure times for flights from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Sioux Falls Regional (FSD) to Seattle - Tacoma Intl. (SEA) are in the afternoon, from 12pm to 3pm. About 27% of passengers prefer this time. Many major carriers, including American Airlines, United Airlines and Delta Air Lines, offer flights during this window. This timing works well because it allows you to have a productive morning before heading to the airport, and you'll arrive in Seattle with time to settle in.
How long does it take to fly from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flying from FSD to SEA with a connection usually takes about 9 hours 30 minutes, traveling roughly 1,260 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for FSD to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Sioux Falls Regional (FSD)?
From Sioux Falls Regional (FSD), you can fly directly into Seattle - Tacoma Intl. (SEA) to reach Seattle. Some flights may connect through major hubs like Denver Intl. (DEN), O'Hare Intl. (ORD), Minneapolis - St. Paul Intl. (MSP) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Sioux Falls, SD (FSD-Sioux Falls Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Sioux Falls Regional
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
£306
Distance
2016 km

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