일반 간선버스와 경로는 같지만 정차하는 곳이 더 적은 급행버스다. 목적지로 더 빨리 이동하고 싶을 때 이용하기 좋다. 또 모든 노선이 제주 국제공항에서 바로 탈 수 있어 공항에서 바로 이동하는 여행자에게 알맞다. 대부분의 여행자는 동일주 노선인 101번 버스와 서일주 노선 102번 버스를 탄다.
It is an express bus that has the same route as a regular bus, but has fewer stops. This is great to use when you want to get to your destination faster. Additionally, all routes can be boarded directly from Jeju International Airport, making it suitable for travelers traveling directly from the airport. Most travelers take bus 101 on the Dongilju route and bus 102 on the West Ilju route.
It's an express bus that has the same routes as the regular trunk buses but with fewer stops. It is good to use when you want to move to the destination faster. Also, all routes can be taken directly from Jeju International Airport, which makes it suitable for travelers moving directly from the airport. Most travelers take Bus 101, which follows the Dongilju route, or Bus 102, which follows the Seoilju route.