Flight Duration Calculator
Estimate flight times and great-circle distances between any two airports using their IATA codes. Plan your journey with accurate travel time estimates based on typical cruising speeds and direct routing.
How it works
Enter the IATA codes for your departure and arrival airports (for example, JFK for New York John F. Kennedy, LHR for London Heathrow). The calculator computes the great-circle distance and estimates flight time based on typical aircraft cruise speeds.
Common long-haul routes
- New York JFK to London Heathrow (LHR) — approximately 7 hours eastbound
- Los Angeles LAX to Tokyo Narita (NRT) — approximately 11–12 hours
- London Heathrow (LHR) to Singapore Changi (SIN) — approximately 13 hours
- New York JFK to Dubai International (DXB) — approximately 12–13 hours
- Sydney (SYD) to Dallas Fort Worth (DFW) — approximately 17 hours