The prices shown on this page were available within the last 20 days for the specified periods and should not be considered the final price offered. Please note that availability and prices are subject to change.

Cheapest time to fly from Seattle to Seoul

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available in the middle of January. Take advantage of this period to save on your flight tickets and make the most of your trip. Please note that prices may change after your search.

Filter by

week: 11 Jan - 17 Jan

Flights from just £332

£1,005

£2,493

£2,266

£1,862

£543

£703

£2,548

£448

£2,129

£332

£456

£373

NovemberDecemberJanuary

Flight Duration11 h and 55 mFlights between Seattle and Seoul take, on average, 11 h and 55 m minutes, but the time can vary according to other factors

Cheapest flight£448Cheapest price for a flight between Seattle and Seoul found by our customers in the last 72 hours

Origin airportSeattle-Tacoma International AirportWhen flying from Seattle to Seoul

Destination airportsIncheon International AirportWhen travelling from Seattle to Seoul

High seasonMarchAccording to search data from our customers, March is the busiest time to fly from Seattle to Seoul

Airlines flying this routeAlaska Airlines, Asiana AirlinesAirline(s) with flights between Seattle to Seoul

One-way average Price£1076The average price for a flight Seattle - Seoul at Opodo is £1076, based on the price of last 6 months

Best time to bookMarchAccording to real data December is the most popular time to book a flight to Seoul when departing from Seattle

Exchange rate

1 GBP = 1823.7 KRW

1 KRW = 0 GBP

Last checked on Mon 09/11

Distance: 5,171 mi

Seattle airports

Seattle-Tacoma International Airport (SEA)How far from city centre: 11 mi

Seoul airports

Incheon International Airport (ICN)How far from city centre: 35 mi

Book your Seattle to Seoul flight

Search direct and connecting flights from Seattle to Seoul (South Korea) with Opodo. When your results appear, sort them by timing or fare and book whichever option fits your plans best.

The cheapest fare booked on this route in recent days was £448, although the price you're shown will vary with your travel dates and departure times.

Flying non-stop from Seattle to Seoul takes roughly 12 h and 48 m, whereas journeys with a layover will take longer.

Airports and airlines on the Seattle–Seoul route

Plan your trip with confidence by checking the relevant airports and comparing the airlines that fly this route.

Departure airport: Seattle-Tacoma International Airport (SEA)
Arrival airport: Incheon International Airport (ICN)

The weather in Seoul

The best time to go may come down to the kind of weather you most enjoy. In Seoul, temperatures average around 29ºC in the warmest months and roughly -4ºC in the coldest. Bear this in mind when deciding what to pack and planning time outdoors.

Highs: up to 30ºC
Lows: down to -6ºC
Hottest month: August
Coldest month: January
Driest month: January
Wettest month: July

Tips for cheaper flights from Seattle to Seoul

A few ways to bring down the cost of your flight from Seattle to Seoul:

Flexible dates: check fares across two or three departure days. Going a day earlier or later can make a real difference to what you pay.
Baggage allowance: see what's included in each fare before booking, so you're not stung by unexpected charges at the airport.
Airports on your route: double-check which airports you'll fly from and into, particularly if the city has more than one. It makes it easier to plan transfers and work out the full cost of getting around.

After a bigger saving? Book a Flight + Hotel package to combine the two in a single booking and unlock exclusive discounts on your stay in Seoul. Adding car hire to the same booking can save you money too.

Frequently asked questions about flights from Seattle to Seoul

On average, how much is the price of a flight from Seattle to Seoul?

When you fly from Seattle to Seoul the average price is £1076. However, this price depends on many other factors such as seasonality or how far in advance the route has been booked.

How can I find cheap flights from Seattle to Seoul at Opodo?

The cheapest price for a flight from Seattle to Seoul is 448 £. At Opodo we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.

When is the best time to book a flight from Seattle to Seoul?

The most popular months to book a flight from Seattle to Seoul are December, November and February, based on the searches of our customers.

When is the best time to travel from Seattle to Seoul?

The best time of the year to go to Seoul when flying from Seattle depends on several preference factors like climate, seasonality and, of course, price. When it comes to popularity, March is the top 1º month to fly to Seoul from Seattle in terms of searches from our customer, followed by September and June. If you prefer to avoid high peaks of turism, however, and escape a crowded period, November, August and July are the months with less volume of searchs for the route Seattle - Seoul.

How long does the flight take to go from Seattle to Seoul?

The total flight time between Seattle and Seoul is of around 11 h and 55 m on average, considering an average distance of 5,171.16 mi, for both direct and indirect flights for the route (which may have 1 or more stops in other cities in between).

How is the weather in Seoul compared to Seattle?

While in Seattle temperatures can reach an average of 18º ºC in summer, Seoul can experience temperatures up to 25º ºC during the hot season. In winter, however, the weather shows around 0º ºC in Seoul, compared to the 6º ºC average in Seattle.

Which airports have flights between Seattle and Seoul?

The main airport route flying between Seattle and Seoul is: Seattle-Tacoma International Airport (SEA) to Incheon International Airport(ICN). This route is covered by the following airline(s):

Which are the airlines with flights from Seattle to Seoul?

Airlines with direct flights departing from Seattle to Seoul are:

Asiana Airlines.
Asiana Airlines.
Asiana Airlines.

Alaska Airlines

Lufthansa
Lufthansa

Plan your trip

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