A 50-minute layover is highly risky in 2026 and should only be attempted if both flights are domestic and on the same ticket. For domestic-to-domestic connections at smaller hubs (like Charlotte or Salt Lake City), it is doable if your first flight lands on time. However, for international connections or at massive airports like Heathrow, JFK, or Atlanta, 50 minutes is almost certainly not enough. You often need time to clear customs, re-clear security, and change terminals, which can take 90+ minutes. If you are on separate tickets, a 50-minute window is a recipe for disaster, as the second airline is not obligated to help you if you miss the flight. For 2026 travelers, the "Golden Rule" is a minimum of 60 minutes for domestic and 3 hours for international layovers to account for the inevitable delays of modern air travel.