For the vast majority of airlines in 2026, you can print your boarding pass starting 24 to 48 hours before your scheduled departure time, coinciding with the opening of the online check-in window. Most major carriers like Delta, United, and American use a 24-hour window, while some European carriers like Ryanair or easyJet allow check-in up to 30 days in advance if you have a seat reservation. Once you complete the online check-in process via the airline's website or mobile app, you will be given the option to download a PDF to print at home or receive a digital QR code for your smartphone. If you are flying from certain international locations (like Morocco) or using specific low-cost carriers, you may be required to print a paper pass to avoid high "airport check-in fees." If you forget to print at home, most airports have self-service kiosks where you can print your pass for free using your confirmation code or by scanning your passport.