Cheap Flights from Seoul to Seattle

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Flight deals from Seoul to Seattle

Looking for a cheap last-minute deal or the best return flight from Seoul to Seattle? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seoul to Seattle

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

Direct flights from Seoul to Seattle

Alternative Seoul to Seattle routes

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

Seoul to Seattle: Flight information

The things to know before you go.
Cheapest flight found$875
Cheapest month to flyFebruary
Average flight time10 hrs, 11 mins
Most popular airlineDelta
Average flights per week276

Finding cheap flights from Seoul to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Seoul to Seattle is $875. 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.
10 hours and 11 minutes is the average flight time from Seoul to Seattle.
Delta, Korean Air and Alaska Airlines fly direct from Seoul to Seattle.
As of January 2026, there are 69 flights per week flying from Seoul to Seattle.
The cheapest month to fly from Seoul to Seattle is usually February.
If you're flying from Seoul, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from $875.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seoul to Seattle on Monday, 23 February 2026.
Yes – the average flight time is 10 hours and 11 minutes.
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.
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.
In January, the average temperature is usually around 3°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.
The cheapest airline that flies to Seattle is Air Canada. And the cheapest airline that flies to Seattle Boeing Fld Airport is Asiana Airlines.

Travelling from Seoul to Seattle: what you need to know

  • There are a couple of main airports to choose from in Seoul. Explore your options departing from Incheon International Airport (ICN) or Gimpo International Airport (GMP) when planning your flight from Seoul to Seattle.

  • Hop off your plane in Seattle at Seattle-Tacoma International Airport (SEA) or Lake Union Sea Plane Base Airport (LKE).

  • Around 10 hours 15 minutes is how long you can expect to be in the air on a direct Seoul to Seattle flight.

  • The timezone in Seattle is UTC-7, which is 16 hours behind Seoul.

  • The most popular route for flights from Seoul to Seattle is from Incheon International Airport (ICN) to Seattle-Tacoma International Airport (SEA). You can choose from 20 services every week between these two airports. If you'd like to take off at the first opportunity, the earliest flight from ICN to SEA is the 16:10 Korean Air option. If you prefer to leave later in the day, the final scheduled service is at 20:05 with Delta Air Lines.

  • To ensure you don't miss your Seoul to Seattle flight, allow plenty of time for things like check-in and baggage drop. Turning up two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • During popular months such as July, it's best to get to the airport well in advance. Arrive two hours before domestic departures and four hours ahead for an international flight when you fly during a peak period in general.

How to find the cheapest flights from Seoul to Seattle

  • Book two months before flying. Pricing trends suggest that this is the ideal window for finding cheap Seoul to Seattle flights.

  • Schedule your trip for May. That's the best month for scoring an awesome deal on plane tickets from Seoul to Seattle. If your travel dates are flexible, use the 'Whole month' tool to find the cheapest price across each month.

  • Stay on top of deals for cheap flights from Seoul to Seattle by setting up a Price Alert. You'll get an email or notification through the app when fares go down.

  • Tailor your flights using filters. Pick your ideal arrival and departure times, airlines and total journey duration. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best' Seoul to Seattle flights.

Flying from Seoul

Incheon International Airport (ICN)

  • Jet off from Incheon International Airport (ICN) on a nonstop flight from Seoul to Seattle. From ICN, you can fly directly to Seattle-Tacoma International Airport (SEA).

  • Choose from a range of airlines offering direct Seoul to Seattle plane tickets with departures from ICN, including:

  • We make it simple to book a Seoul to Seattle flight with a stopover. To see the options departing from Incheon International Airport, deselect 'Direct flights only.' Then, simply pick a flight offering a stop long enough to see the sights of the city of your choice. Top stopovers include:

    • Vancouver International Airport (YVR)

    • Narita International Airport (NRT)

    • Calgary International Airport (YYC)

  • From the centre of Seoul, ICN is around 48 kilometres away. Use navigation apps or visit the official airport website to work out the best way to arrive at the terminal.

  • Searching for a handy hotel near Incheon International Airport? If you're boarding an early flight from Seoul to Seattle, these stays will have you moments from your departure lounge:

  • Of all flights leaving Incheon International Airport, 54.5% land on schedule at their destination.

Gimpo International Airport (GMP)

  • Break up your Seoul to Seattle flight with a stop at Haneda Airport (HND). One of the main stopovers between Gimpo International Airport and Seattle, it's the perfect opportunity to recharge before the next leg of your journey.

  • GMP is around 16 kilometres from central Seoul. Plan ahead to find the fastest way to reach the terminal.

  • Kick off your holiday early with an extra night away from home. Before your flight from Seoul to Seattle, stay in one of these hotels close to Gimpo International Airport:

  • 76% of flights departing Gimpo International Airport arrive within the expected time frame.

Arriving in Seattle

Seattle-Tacoma International Airport (SEA)

  • The distance from Seattle-Tacoma International Airport (SEA) to central Seattle is roughly 19 kilometres. It'll take you about 20 minutes to reach the centre driving.

  • It usually takes 55 minutes to get there when travelling by public transport.

  • If you're coming in on a late flight from Seoul to Seattle, nothing beats the convenience of staying near the terminal. Pick up your bags from the carousel and then be showered and snoozing not long after at one of these accommodation options near SEA:

  • Fast-track your adventure by picking up a Seattle-Tacoma International Airport rental car. Grab a set of wheels from Thrifty, Europcar or Budget and explore beyond Seattle's main sights.

  • To get the lowest price, book your vehicle from Seattle-Tacoma International Airport about one week in advance of your Seoul to Seattle flight.

Lake Union Sea Plane Base Airport (LKE)

  • Lake Union Sea Plane Base Airport (LKE) is about 3 kilometres from the centre of Seattle. Once you've hopped off your flight from Seoul to Seattle, it takes approximately 10 minutes to reach the heart of the city in a ride-share or cab.

  • The trip will take roughly 25 minutes on public transport.

  • You'll find some great places to call home for the night near LKE. Unwind after your Seoul to Seattle flight at one of these perfectly located options:

Best time to go to Seattle

  • May is the quietest month for flights from Seoul to Seattle, while July is the busiest. Pick the best time to visit 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 and 28ºC. Lock in your Seoul to Seattle ticket then if that's your definition of good weather.

  • February has average temperatures of between -1ºC and 11ºC. Look for cheap flights from Seoul to Seattle around that time if you want to travel in cooler conditions.

More about Seattle

  • Start your Seattle trip right by choosing the perfect place to stay. As soon as you've booked your flight from Seoul to Seattle, check out our range of accommodation options including:

  • Greyhound: Bus Station and LMN Architects are just the start of the top-rated attractions to add to your Seattle itinerary. Keep the adventure rolling by checking out Boeing Radiation Effects Lab.

Explore more of United States

  • You've done Seattle, now it's time to discover more of United States. Travel about 241 kilometres south to Portland to check off its leading sights. From Pioneer Courthouse Square to Portland Japanese Garden and Pittock Mansion, your itinerary will be busy.

  • Spokane is another favourite destination in United States and is around 370 kilometres east of Seattle. No journey is complete without experiencing Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.