Yes, passengers can select or change their seats on Korean Air flights, providing a certain level of flexibility for travelers to enhance their flying experience. Typically, seat selection can be completed during the booking process on the Korean Air website, mobile app, or through travel agents. For those who wish to make changes to their seat assignment after the initial booking, it is usually possible to do so by accessing the "Manage My Booking" section on the Korean Air website.
Keep in mind that seat selection may be subject to availability and certain fare classes might not include the option for free seat selection. In some instances, passengers may be required to pay a fee for preferred seating, such as seats with extra legroom.
For the most accurate and detailed information regarding seat selection policies, including any associated fees and the specific procedures based on your flight's status, it is advisable to consult the current web page of Korean Air.