The cheapest times to fly from GMP to SEA are
- January 8th to April 8th (except the week of January 22nd)
- May 14th to May 27th
- September 17th to December 9th
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from GMP to SEA is mid October. Prices can be as high as $1691 for Saturday flights during early August, or as low as $511 for Tuesday flights around mid October.
When to Fly to Seattle
Flying from Seoul (GMP) to Seattle, WA (SEA) will usually cost between $619 to $1387 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid October with an average ticket price of $620. Due to high demand the most expensive time to fly is early August, with an average price of $1406. Planning your trip to low-cost times can easily save you $786 on economy flights and even more on first-class flights. Generally, any price below $727 can be considered a good price for a round-trip GMP to SEA flight.
See below for a graph of average weekly prices for the GMP to SEA route. All prices are for round-trip tickets in USD.
Compared to other flights, the GMP to SEA flight is cheaper than the average and costs less than the average flight leaving from Seoul. The average price per mile (for a direct flight) is $0.09, which is far below average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $174 (16%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $722. Return trip prices are from the SEA to GMP flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from GMP to SEA can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 10 hour 19 minutes may not be realistic.
Flight Questions Answered
Still have questions about flying from GMP to SEA? We’ve got answers.
Which airlines fly this route?
You can find 19 major airlines flying this route most often: Air Canada, Air China, Alaska, American, ANA, Asiana, China Airlines, China Eastern, China Southern, Delta, EVA Air, Hainan, Hawaiian, JAL, KLM, Korean Air, Lufthansa, SWISS, United, and potentially more during busy seasons.
How far away is it from Seattle/Tacoma International Airport to Gimpo International Airport?
The distance between the two airports is roughly 5185 miles or 8344 kilometers.
How long does it take to fly from GMP to SEA?
The real-world flight time for a nonstop GMP to SEA flight is about 10 hour 19 minutes.
How many flights go between Seoul and Seattle, WA?
It depends on the day of the week and the date, but a typical day might have around 47 available flights from GMP to SEA.
Airport Location Info
|Origination airport name||Gimpo International Airport|
|Destination airport name||Seattle/Tacoma International Airport|
|Country||the United States|
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.