For an international, long-haul flight departing from Paris-Charles de Gaulle (CDG) in 2026, the standard recommendation is to arrive at least 3 hours before departure. CDG is notoriously large and complex, with three main terminals and several "sub-terminals" (like 2E, 2F, and 2G) that can require a shuttle train to navigate. In 2026, security and "PARAFE" (automated passport control) lines can be unpredictable, especially during the morning rush. If you are traveling to the United States, you must also factor in the extra time for additional security screenings and document checks required for transatlantic flights. If you have tax-free (Détaxe) forms to process for luxury shopping, you should add an extra 30 to 45 minutes to your arrival time to visit the "PABLO" kiosks before checking your bags. For 2026 travelers, checking in online and having a digital boarding pass is a "pro" move that can save you 20 minutes, but with CDG's sheer scale, cutting it close is never advised; it is much better to spend an extra hour in a lounge than to risk a "sprint" through one of Europe's busiest and most sprawling airport hubs.