Clark to Incheon (Seoul) and Busan Flight Schedules. Here’s the flight schedule From Clark International Airport to Incheon , Seoul & Busan updated as of November 2023 CLARK – INCHEON Flight Schedule and Fare Airlines Frequency JEJUair : DailyPhilippine Airline: DailyJinair : 4 x weekly (Mon, Thurs, Fri and Sun)Asiana Airlines: 4 x weekly (Mon, Thurs,…