Flight Distance + Time Calculator
Calculate distance + flight time between any cities. Real durations based on 2026 commercial aircraft cruising speeds.
Calculate Flight Distance
Flight Details
- East-bound: —
- West-bound: —
Estimates assume Boeing 777/787 or Airbus A350 cruising at ~570 mph. Actual flight time varies with wind and route.
FAQ
How is flight distance calculated?
Using the great circle formula (haversine) based on airport coordinates. This is the shortest possible distance between two points on Earth. Actual flight paths may be 5-15% longer due to wind, airspace restrictions, and connections.
What’s the longest direct flight in the world?
Singapore Airlines SQ23/24: New York to Singapore at 9,537 miles, 18-19 hour flight. Qantas QF9: Perth to London at 9,010 miles. Air New Zealand: Auckland to NYC at 8,825 miles.
How long is a transatlantic flight?
NYC to London: 6.5-7 hours. NYC to Paris: 7-7.5 hours. NYC to Rome: 8-9 hours. LA to London: 10-11 hours. East coast US to Europe is typically 7-9 hours.
Why are westbound flights longer than eastbound?
Jet streams. Most flights face headwinds going west (against the jet stream), tailwinds going east. NYC to London (east) is 30-60 minutes shorter than London to NYC (west).
Should I take direct flights or connections?
Direct flights save 2-4 hours on average and eliminate missed connection risk. Worth $100-300 extra for direct on international trips. Always direct for same-day work travel.