For travel from Brussels Airport (BRU) in 2026, the recommended arrival time is generally two hours before a domestic or European (Schengen) flight and three hours before an international, long-haul flight. During peak periods, such as school holidays (July, August, and late December) or Monday mornings and Friday evenings (5–8 AM and 4–7 PM), these times should be extended by at least 30 to 60 minutes. Brussels Airport is a major European hub, and security wait times can vary; in 2026, the average security wait is approximately 28 minutes, but passport control for non-Schengen departures can add another 25 minutes. If you are checking bags or require special assistance, aim for the three-hour mark regardless of your destination to ensure a stress-free experience. Travelers using Brussels South Charleroi Airport (CRL) should also adhere to the three-hour rule during peak times, as the smaller terminal can become congested quickly. Checking in online and using digital boarding passes can save significant time, allowing you to head directly to the "bag drop" or security.