Flight Time Estimator

Calculate the great-circle distance and estimated flight time between any two airports worldwide. This tool models theoretical nonstop routing, allowing you to analyze routes even if no airline currently operates direct service between them.

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Estimate Flight Time

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Washington (IAD) → London (LHR)

United Kingdom flag London (LHR) – United Kingdom 3 airlines
7 hr 55 mins
3,667 mi · 5,902 km
7
per day
Estimated flight time
7 hr 55 mins
Distance
3,667 Miles · 5,902 Kilometers
3,186.71 Nautical Miles

London (LHR) → Washington (IAD)

United States of America flag Washington (IAD) – United States of America 3 airlines
8 hr 20 mins
3,667 mi · 5,902 km
7
per day
Estimated flight time
8 hr 20 mins
Distance
3,667 Miles · 5,902 Kilometers
3,186.71 Nautical Miles