The Turkish Airlines check-in policy is designed to give passengers flexibility and convenience, whether traveling domestically or internationally. Turkish Airlines offers multiple check-in options, including online check-in, mobile check-in, airport counter check-in, and self-service kiosks. Online check-in typically opens 24 hours before departure and closes 90 minutes prior to international flights and 45 minutes before domestic flights. This option allows travelers to select seats, download boarding passes, and avoid long airport queues.