What’s the cost of a flight from Seattle to Jeju?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Seattle and Jeju City.

Choose a date to explore the best fares now.

If possible, avoid holiday periods: ticket prices tend to rise quickly and availability drops, especially on busy routes. Morning and evening flights are often in high demand too — book early to get a good fare.

Which airports near Seattle or Jeju City offer flights?

In many cases, using a nearby airport can improve your chances of finding direct flights or better rates.

• Airports in Seattle: 2 airports are active - Boeing Field, Lake Union.
• Airports in Jeju City: Jeju City is the only airport in use at the moment.

Secondary airports can offer faster travel thanks to shorter lines and quicker boarding times than major ones.

Plan smarter: flights from Seattle to Jeju

Find the flight that fits your plans with Jetcost. You can filter results by stops, agencies, budget, time of day, and airline — all in one search.

Other popular destinations

Travelers flying to South Korea also checked out: Jeju City, Kwangju, Pusan, Seoul, Taegu.

Comparing offers from multiple agencies helps you find the best price for the same route. You can also spot exclusive deals from individual airlines right in the results list.