I am looking for domestic flights on the routes Busan-Jeju and Jeju-Cheongju. I noticed that there are at least four airlines serving those routes: Asiana, Korean Air, Jeju Air and Hansung Airlines.
Does anybody know if there is a possibility to book flights on the two low fare airlines from overseas? On the webpage they state that only credit cards issued in Korea would be accepted.
If not, do they have an office in Gimpo Airport, where we could book the flights after our arrival in Seoul? Or is it possible to book the flights through travel agencies?
Do the airlines have fixed prices for domestic flights or will it be more expensive to book them on short notice?
Thanks for any help!
