In 2026, most major international airports allow ticketed passengers to enter the terminal building up to 6 hours before departure. However, you typically cannot drop your checked bags or pass through security until the airline's check-in counter officially opens, which is usually 3 to 4 hours before take-off. Arriving earlier than this is often discouraged unless you have a confirmed booking at an on-site airport hotel or a late-night layover. For 2026 travelers, it is a "pro-tip" to aim for a 3.5-hour arrival; this provides a "safety buffer" for biometric verification, long security queues, and immigration processing without leaving you sitting in the "pre-security" public zone for hours. If you are using "early bag drop" services (available the evening before some flights), you can arrive much closer to the 2-hour mark on the morning of your journey to head straight for the lounge or gate.