How to upgrade from economy to business class Korean Air?
Upgrading your flight from economy to business class on Korean Air can improve your travel experience. Passengers need to be qualified for an upgrade, passengers normally need to have an Economy Flex Korean Air ticket, as it offers more flexibility and eligibility for upgrades. Seat upgrades can be requested while making a reservation or after purchasing ticket buy but must be confirmed before boarding. Availability depends on seat availability in the business class cabin and may require additional payment or the use of mileage points.