Generally, 2 hours is considered the "sweet spot" for most international connections in 2026, but it carries risks depending on the airport. If you are connecting within the same terminal (e.g., at Munich or Singapore Changi) and your bags are checked through, 2 hours is plenty of time for a stress-free walk to your next gate. However, if your connection involves clearing Customs and Immigration (standard for any first-point-of-entry in the U.S.) or changing terminals via a shuttle (like at London Heathrow), 2 hours can be very tight. In 2026, a "Minimum Connection Time" (MCT) of 90 minutes is often the legal airline limit, but a supportive peer would recommend 3 hours if you are moving between separate tickets or if the airport is known for long security lines. If your first flight is delayed by even 30 minutes, a 2-hour window disappears remarkably fast.