What are the rules for the Korean Air seat Upgrade?

Korean Air provides upgrade options to its passengers, but there are some rules to be followed. Travelers can upgrade their seats using the miles through the frequent flyer program, placing a bid, or during check-in, if seats are available in the higher class cabins of the carrier. The Korean Air Upgrade usually depend on the ticket type and the SkyPass membership status. If they want to learn more about the upgrade options, they can contact Korean Air customer service or read the blog by Airlines Group Travel at the mentioned link.