Flytime

• Flight times are real scheduled durations for each direct leg, not an estimate — and they're directional, so the way back can differ (e.g. London→New York is slower than New York→London, thanks to the jet stream).
• Routes are current — the direct-flight network is scraped and refreshed weekly, so it reflects roughly today's nonstop services rather than a historical snapshot.
• A flat 90-minute layover is added for every connection — this is the one deliberate estimate, applied at query time. Dijkstra then finds the genuinely quickest origin→country path.
• The full network is used — no hub pruning. A country's time is the best of any of its reachable airports.
• On the map: a dot's colour shows its total travel time from the origin (green = quick → deep red = far), and its size shows how many direct routes the airport has (bigger = a larger hub).

Flight & airport data derived from FlightsFrom.com via Jonty Wareing's airline-route-data (auto-updated weekly). World map from Natural Earth (public domain).