Pick your home airport and watch the world sort itself into rings of flight time. Each ring marks how far a typical airliner could carry you, gate to gate, in 1, 3, 5, 8, or 12 hours of still air flying. Below the map, each band lists the big airports you could reach in that window.
These times are estimates for a typical airliner in still air, with a 15 minute gate allowance folded in. Real flights shift with winds, routing, and taxi queues, and the rings show pure reach, not nonstop airline service. For any single pair, the calculator has the full picture.
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