Gimpo International Airport is served by 18 airlines, flying from/to 15 destinationsLongest flight from Gimpo International Airport is Seoul to 🇹🇼 Kaohsiung City (KHH), which takes around 3 hours and 5 minutes. On an airline like T'way Air. More info on this flight route (GMP-KHH).Shortest flight from Gimpo International Airport is Seoul to 🇰🇷 Ulsan (USN), which takes around 1 hour. On an airline like Jin Air. More info on this flight route (GMP-USN).