How Long Before Departure Can You Correct Your Name on Korean Air?
It’s advisable to request a name correction on your Korean Air ticket as soon as possible after noticing the mistake. While the airline generally allows name corrections up until the day of departure, it’s always best to submit your request in advance. This ensures that any issues are resolved ahead of time and avoids last-minute complications at the airport.
https://www.flightaura.com/nam....e-change/korean-air-