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Cheap Flights from Seattle to Seoul

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Compare Seattle to Seoul flight deals

Find the cheapest month or even day of the year to fly to Seoul

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Flight deals from Seattle to Seoul

Looking for a cheap last-minute deal or the best return flight from Seattle to Seoul? Find the lowest prices on one-way and return tickets right here.
Seoul.Rs119,246 per passenger.Departing Tue, 2 Sep.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Tue, 2 Sep, arriving in Incheon International.Price includes taxes and charges.From Rs119,246, select.
Seoul.Rs125,417 per passenger.Departing Sat, 26 Jul.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Sat, 26 Jul, arriving in Incheon International.Price includes taxes and charges.From Rs125,417, select.
Seoul.Rs126,188 per passenger.Departing Thu, 21 Aug.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Thu, 21 Aug, arriving in Incheon International.Price includes taxes and charges.From Rs126,188, select.
Seoul.Rs130,832 per passenger.Departing Wed, 7 May.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Wed, 7 May, arriving in Incheon International.Price includes taxes and charges.From Rs130,832, select.
Seoul.Rs135,520 per passenger.Departing Thu, 30 Oct.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Thu, 30 Oct, arriving in Incheon International.Price includes taxes and charges.From Rs135,520, select.
Seoul.Rs144,499 per passenger.Departing Mon, 2 Jun.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Mon, 2 Jun, arriving in Incheon International.Price includes taxes and charges.From Rs144,499, select.
Seoul.Rs145,398 per passenger.Departing Mon, 3 Nov.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Seattle / Tacoma International on Mon, 3 Nov, arriving in Incheon International.Price includes taxes and charges.From Rs145,398, select.
Seoul.Rs152,636 per passenger.Departing Mon, 21 Apr.One-way flight with Thai Airways.Outbound indirect flight with Thai Airways, departs from Seattle / Tacoma International on Mon, 21 Apr, arriving in Incheon International.Price includes taxes and charges.From Rs152,636, select.

Find the cheapest month to fly from Seattle to Seoul

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Seoul flights are currently cheapest in September.
Apr
from Rs152,636
May
from Rs130,832
Jun
from Rs144,499
Jul
from Rs125,417
Aug
from Rs126,188
Sep
from Rs119,246
Oct
from Rs135,520
Nov
from Rs145,398
Dec
from Rs181,535
Jan
from Rs167,632
Feb
from Rs170,915
Mar
from Rs168,990

Direct flights from Seattle to Seoul

Alternative Seattle to Seoul routes

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

Seattle to Seoul: Flight information

The things to know before you go.
Cheapest flight foundRs119,246
Cheapest month to flySeptember
Average flight time11 hrs, 45 mins
Most popular airlineDelta
Average flights per week432

Finding cheap flights from Seattle to Seoul: Frequently asked questions

There are 2 airports in Seoul: Gimpo International and Incheon International.
The best price we found for a return flight from Seattle to Seoul is Rs207,104. 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.
11 hours and 45 minutes is the average flight time from Seattle to Seoul.
Delta, Korean Air and Asiana Airlines fly direct from Seattle to Seoul.
As of April 2025, there are 72 flights per week flying from Seattle to Seoul.
The cheapest month to fly from Seattle to Seoul is usually April 2025.
If you're flying from Seattle, the cheapest airport near Seoul is Incheon International – which is 47.8 km away from the centre of Seoul. We've found flights into this airport from Rs207,104.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Seoul on Saturday, 2 August 2025.
Yes – the average flight time is 11 hours and 45 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 Seoul 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 Seoul is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 10°C. August is typically the warmest month in Seoul, when it usually averages around 28°C. You can expect the least rain in January. The coldest month is January, with temperatures averaging -8°C. The rainiest month is July.
The cheapest airline that flies to Seoul is Delta. And the cheapest airline that flies to Incheon International Airport is Korean Air.

Travelling from Seattle to Seoul: what you need to know

  • There are a couple of main airports you can start your trip from in Seattle. Explore your options leaving from Seattle-Tacoma International Airport (SEA) or Lake Union Sea Plane Base (LKE) when booking your flight from Seattle to Seoul.

  • Incheon International Airport (ICN) and Gimpo International Airport (GMP) are Seoul's major entry points.

  • 11 hours 53 minutes is the average duration of a direct flight from Seattle to Seoul. Based in the UTC+9 timezone, Seoul is 16 hours ahead of Seattle.

  • With 54 weekly flights between the two airports, Seattle-Tacoma International Airport (SEA) to Incheon International Airport (ICN) is the most popular route. Hop on the earliest flight from Seattle to Seoul with Delta Air Lines at 10:20. If you're keen to get more out of your day before jetting off, the latest flight from SEA to ICN is with Asiana Airlines at 14:20.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to board your flight from Seattle to Seoul.

  • You'll likely experience longer lines during popular months such as July and other peak periods. Arriving up to four hours ahead of international flights and two hours for a domestic departure is a smart move.

  • If you hold a passport from United States, you will need an ETA to visit South Korea. This applies when booking a cheap flight from Seattle to Seoul for tourism purposes. Requirements may change if you're travelling for business or other reasons. Always check official visa guidelines before you make travel plans and definitely before you fly.

Flying from Seattle

Seattle-Tacoma International Airport (SEA)

  • You can catch a direct flight from Seattle to Seoul departing from Seattle-Tacoma International Airport (SEA). Begin your journey at SEA and end it at Incheon International Airport (ICN).

  • At SEA, there's a range of airlines offering direct flights from Seattle to Seoul, including:

  • Stopovers are the perfect opportunity to take a break from travelling — and possibly even tour another city. When searching for flights from Seattle to Seoul leaving from Seattle-Tacoma International Airport, deselect the 'Direct flights only' box to see where you can visit along the way. Here are some options to consider:

    • Haneda Airport (HND)

    • Vancouver International Airport (YVR)

    • Harry Reid Airport (formerly McCarran Airport) Airport (LAS)

  • Located around 23 kilometres from central Seattle, SEA can be reached in approximately 18 minutes by car, depending on traffic. The journey on public transport takes roughly 54 minutes.

  • After a relaxed start to your journey? Stay near Seattle-Tacoma International Airport. Whether you've booked an early flight from Seattle to Seoul or want to avoid feeling rushed, these hotels have you covered:

Lake Union Sea Plane Base Airport (LKE)

  • Get the most out of your holiday with a stopover on your flight from Seattle to Seoul. Visit friends or family or tick a new city off your list. Whatever your plans, here's where you can stop between Seattle-Tacoma International Airport and Seoul:

    • Haneda Airport (HND)

    • Vancouver International Airport (YVR)

    • Harry Reid Airport (formerly McCarran Airport) Airport (LAS)

  • With public transport, you can travel from central Seattle to LKE in about 23 minutes. The terminal is roughly 3 kilometres away, and making the journey by car takes approximately 11 minutes.

  • Want to treat yourself to an extra night away before catching your flight from Seattle to Seoul? Kick back in a hotel near Lake Union Sea Plane Base Airport before your break officially begins. Stay at one of these accommodation options:

Arriving in Seoul

Incheon International Airport (ICN)

  • Central Seoul is approximately 48 kilometres from Incheon International Airport (ICN). Journey times by car rental or cab will vary depending on time of day, so do a little research before you go.

  • It typically takes 1 hour and 44 minutes if you're travelling on public transport.

  • The last thing you need is a long journey to your hotel if you're landing late on a flight from Seattle to Seoul. Stay at one of these accommodation options near ICN instead:

Gimpo International Airport (GMP)

  • If you're staying in Seoul's centre (or just can't wait to start exploring), the city is around 16 kilometres from Gimpo International Airport (GMP). See if you can spot any information desks to get directions after disembarking your flight from Seattle to Seoul.

  • The journey will take roughly 1 hour and 3 minutes on public transport.

  • You'll find some comfortable hotels where you can rest ahead of your adventure near GMP. Unwind after your flight from Seattle to Seoul at any of these well-located options:

How to find the cheapest flights from Seattle to Seoul

  • Rs119,246 is the lowest price for a one-way ticket from Seattle to Seoul. A return flight starts from Rs207,104. These fares may change depending on availability and demand.

  • Don't leave things to the last moment. You're more likely to find cheap tickets from Seattle to Seoul if you book in advance. Airlines often have some excellent early bird deals.

  • The 'Whole month' search tool shows you the cheapest tickets from Seattle to Seoul throughout the entire month. It's the best way to find a bargain if your travel dates are flexible.

  • Sign into your online account or use the app to create a Price Alert. We'll notify you straight away if there's a better deal on this route. It's simple to do, and it'll save you time searching for cheap tickets from Seattle to Seoul every day.

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

Best time to go to Seoul

  • It's time to choose your travel dates for your flight from Seattle to Seoul. July is the busiest month for a trip to Seoul. If you like a more relaxed vibe, go in April.

  • Lock in your flight from Seattle to Seoul for August if you'd like to visit the city during its warmest month. Expect temperatures in Seoul to range from 19ºC to 32ºC.

  • Look for cheap tickets from Seattle to Seoul in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between -12ºC and 4ºC on average.

More about Seoul

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

  • All great holidays should include some sightseeing. Gyeongbokgung Palace, Bukchon Hanok Village and N Seoul Tower are attractions you won't want to skip in Seoul.

Complete your Seoul trip with a car rental

  • We use the same magic that helped you find your cheap flight from Seattle to Seoul to track down awesome deals on car rentals. Search for your ride in seconds and easily compare your options. Plus we give you all the info you need to drive in Seoul, from the most popular rental company to the best time to book.

Plan the rest of your trip from Seattle to Seoul

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