Yes, international flights in 2026 absolutely require a boarding pass, though the format has shifted heavily toward digital "e-tickets." While ultra-low-cost carriers like Ryanair have moved toward a "digital-only" model where paper passes may incur a fee, most major international airlines still allow a choice between a mobile pass (stored in Apple/Google Wallet), a home-printed PDF, or a cardstock pass issued at the airport kiosk. In 2026, the boarding pass serves as more than just a seat assignment; it is a "digital handshake" that often links to your verified travel documents (like e-visas or digital passports). Even in airports using biometric "face boarding," you generally still need a digital boarding pass on your phone to pass through duty-free security and to show your seat number to the cabin crew. Always keep a digital copy offline, as international roaming or spotty airport Wi-Fi can make accessing your email difficult at the gate.