Cheap Flights from Sioux Falls SD to Seattle WA from $268

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Flight deals from Sioux Falls to Seattle

Looking for a cheap last-minute deal or the best round-trip flight from Sioux Falls Airport to Seattle? If you want to travel next month, round-trip fares start from $268. Find the lowest prices on one-way and round-trip tickets right here.

Seattle.$268 per passenger.Departing Wed, Jul 1, returning Tue, Jul 7.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Sioux Falls on Wed, Jul 1, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Tue, Jul 7, arriving in Sioux Falls.Price includes taxes and charges.From $268, select.

Seattle.$269 per passenger.Departing Wed, Aug 26, returning Tue, Sep 1.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Sioux Falls on Wed, Aug 26, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Tue, Sep 1, arriving in Sioux Falls.Price includes taxes and charges.From $269, select.

Seattle.$287 per passenger.Departing Fri, Aug 14, returning Tue, Aug 18.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Sioux Falls on Fri, Aug 14, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Tue, Aug 18, arriving in Sioux Falls.Price includes taxes and charges.From $287, select.

Seattle.$327 per passenger.Departing Sat, Oct 3, returning Sat, Oct 10.Round-trip flight with United.Outbound indirect flight with United, departing from Sioux Falls on Sat, Oct 3, arriving in Seattle / Tacoma International.Inbound indirect flight with United, departing from Seattle / Tacoma International on Sat, Oct 10, arriving in Sioux Falls.Price includes taxes and charges.From $327, select.

Seattle.$333 per passenger.Departing Wed, Sep 2, returning Wed, Sep 9.Round-trip flight with Allegiant Air and Frontier Airlines.Outbound indirect flight with Allegiant Air, departing from Sioux Falls on Wed, Sep 2, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Wed, Sep 9, arriving in Sioux Falls.Price includes taxes and charges.From $333, select.

Seattle.$338 per passenger.Departing Thu, Nov 12, returning Mon, Nov 16.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Sioux Falls on Thu, Nov 12, arriving in Seattle / Tacoma International.Inbound indirect flight with Delta, departing from Seattle / Tacoma International on Mon, Nov 16, arriving in Sioux Falls.Price includes taxes and charges.From $338, select.

Seattle.$359 per passenger.Departing Wed, Jun 24, returning Tue, Jun 30.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Sioux Falls on Wed, Jun 24, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Tue, Jun 30, arriving in Sioux Falls.Price includes taxes and charges.From $359, select.

Seattle.$433 per passenger.Departing Tue, Jun 30, returning Wed, Jul 8.Round-trip flight with United.Outbound indirect flight with United, departing from Sioux Falls on Tue, Jun 30, arriving in Seattle / Tacoma International.Inbound indirect flight with United, departing from Seattle / Tacoma International on Wed, Jul 8, arriving in Sioux Falls.Price includes taxes and charges.From $433, select.

Seattle.$516 per passenger.Departing Fri, Jul 31, returning Tue, Aug 4.Round-trip flight with Allegiant Air and Frontier Airlines.Outbound indirect flight with Allegiant Air, departing from Sioux Falls on Fri, Jul 31, arriving in Seattle / Tacoma International.Inbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Tue, Aug 4, arriving in Sioux Falls.Price includes taxes and charges.From $516, select.

Find the cheapest month to fly from Sioux Falls to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sioux Falls to Seattle flights are currently cheapest in July.

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Alternative Sioux Falls to Seattle routes

Looking for the cheapest, fastest or easiest route from Sioux Falls to Seattle? You could fly into the following airports instead.

Sioux Falls to Seattle: Flight information

The things to know before you go.

Cheapest flight found	$268
Cheapest month to fly	July

Finding cheap flights from Sioux Falls to Seattle: Frequently asked questions

How many airports are there in Seattle?

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.

How much are round-trip flights from Sioux Falls to Seattle?

The best price we found for a round-trip flight from Sioux Falls to Seattle is $268. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Sioux Falls to Seattle?

Currently, there are no airlines that fly direct from Sioux Falls to Seattle. But we found flights with one or more stops from $268.

How many flights are there a week from Sioux Falls to Seattle?

There are no flights flying from Sioux Falls to Seattle, as of June 2026.

When is the cheapest time to fly from Sioux Falls to Seattle?

The cheapest month to fly from Sioux Falls to Seattle is usually July.

What's the cheapest airport to fly to in Seattle?

If you're flying from Sioux Falls Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the center of Seattle. We've found flights to this airport from $268.

Which upcoming date is cheapest to fly from Sioux Falls Airport to Seattle on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sioux Falls Airport to Seattle on Wednesday, July 1, 2026.

Can I get a direct flight from Sioux Falls Airport to Seattle?

No airlines currently offer direct flights between Sioux Falls Airport and Seattle. Most routes have one or more stops.

How can I get the best flight deal from Sioux Falls Airport to Seattle?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Seattle?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in Seattle?

In June, the average temperature is usually around 14°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.

Which is the cheapest airline to fly with from Sioux Falls Airport to Seattle?

Currently, Frontier Airlines offers the cheapest flight tickets to Seattle.

Flying from Sioux Falls Regional Airport (FSD) to Seattle: what you need to know

The timezone in Seattle is UTC-8. The city is two hours behind Sioux Falls, where Sioux Falls Regional Airport is located.
For stress-free travel, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This leaves you with plenty of time to catch your FSD to Seattle flight.
You'll likely experience longer queues in popular months such as March. Arriving up to four hours ahead of international flights and two hours for domestic departures is a wise move.
Located around 5 kilometers from the center of Sioux Falls, FSD can be reached in about 15 minutes by car (depending on traffic). The journey on public transport takes roughly 35 minutes.
Want an easy start to your trip? Stay near FSD. Whether you've booked an early flight from Sioux Falls Regional Airport to Seattle or don't want departure day to feel hectic, these hotels put convenience first:
Of all flights leaving Sioux Falls Regional Airport, 70% touch down on time at their destination.
You'll find FSD at 2801 Jaycee Lane.

How to find the cheapest flights from Sioux Falls Regional Airport (FSD) to Seattle

The lowest price we've seen for a one-way Sioux Falls Regional Airport to Seattle flight is $140. The cheapest price for a return flight is $268. Remember fares can change due to demand at the time of booking.
To pick up cheap flights from FSD to Seattle, book in advance. Airlines usually offer the most competitive fares when flights are first released.
If you're willing to be flexible with your trip dates, check out the 'Whole month' search tool. It'll show you the cheapest price across every month when looking for your Sioux Falls Regional Airport to Seattle ticket.
Finding a cheap flight from FSD to Seattle couldn't be easier with Price Alerts. All you need to do is create one of these automatic notifications and we'll let you know as soon as a deal gets even better.
Tailor your trip with filters. Pick your ideal arrival and departure times, airlines and total journey duration. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' flights from Sioux Falls Regional Airport to Seattle.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

Seattle-Tacoma International Airport (SEA) is around 23 kilometers from the center of Seattle. If you're grabbing a cab or a ride-share, the drive will take roughly 25 minutes.
It typically takes 35 minutes to get there using public transport.
The last thing you need is a lengthy journey to your hotel if you're getting in late on a flight from Sioux Falls Regional Airport to Seattle. Check in to one of these accommodation options near SEA instead:
Lock in the lowest price by booking your vehicle from Seattle-Tacoma International Airport around one week in advance of your flight from FSD to Seattle.

Seattle Paine Field International Airport (PAE)

Once your flight from Sioux Falls Regional Airport to Seattle has arrived, you can get to the city center in around 40 minutes by car. Central Seattle is roughly 40 kilometers from Seattle Paine Field International Airport (PAE).
You can expect the journey to take roughly 1 hour 30 minutes on public transport.
After stepping off your FSD to Seattle flight, kick back at a hotel near PAE. These are some comfortable accommodation options that'll help you slip into relaxation mode:
Get your ideal vehicle, not just what's left over, by booking your ride from PAE before your arrival. You can also avoid paying more than you need to, especially during peak travel times.

King County International Airport (BFI)

King County International Airport (BFI) is about 11 kilometers from central Seattle. It takes about 20 minutes to reach the city center in a ride-share or cab once you've hopped off your flight from Sioux Falls Regional Airport to Seattle.
Public transport can get you there in around 35 minutes.
Find a hotel close to BFI and get from baggage claim to your bed in a snap. Whether you're arriving on a late FSD to Seattle flight or just want an easier arrival, these accommodation options offer a quick route to a good night's sleep:
Rental providers sometimes offer deals on early bookings, so secure your vehicle from BFI well ahead of your flight from Sioux Falls Regional Airport to Seattle. A bit of planning goes a long way for your wallet.

Best time to go to Seattle

December is the quietest month for flights from Sioux Falls Regional Airport to Seattle, while July is the busiest. Choose the ideal time to go to Seattle based on whether you like a laid-back vibe or a more bustling atmosphere.
The warmest month in Seattle is August, with temperatures ranging between 12ºC (54ºF) and 28ºC (82ºF). Book your Sioux Falls Regional Airport to Seattle plane ticket then if this is the type of weather you enjoy.
If you like cooler conditions, search for a cheap ticket from FSD to Seattle in February when temperatures average between -1ºC (30ºF) and 11ºC (52ºF).

More about Seattle

Start your Seattle trip right by choosing the ideal place to stay. Once you've booked your flight from Sioux Falls Regional Airport to Seattle, explore our range of accommodation options including:
There are so many things to explore in this city it can be tricky to know where to begin. Pike Place Market, Space Needle and Seattle Skyline are top attractions which should be on any well-planned Seattle itinerary.

Explore more of the United States

You've visited Seattle, now it's time to explore more of the United States. Journey about 241 kilometers south to Portland to check off its leading attractions. From Portland Japanese Garden to Peninsula Park Rose Garden and Beyond Van Gogh Portland, you've got a jam-packed schedule ahead.
Spokane is another sought-after destination in the United States and is around 370 kilometers east of Seattle. No trip is complete without visiting Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes.