Your Heathrow Layover Guide: Maximizing Wait Time at London's Major Hub: A Complete Guide Arriving at London Heathrow, one of the busiest international airports in the world, often raises a few questions about transit, especially if you find yourself with a long layover or an unexpected delay. A frequent question travelers ask is, "How long can I really wait at Heathrow Airport?" The answer goes beyond just the rules—it's about your comfort, the available facilities, and maki