✈ BOS → LHR
6H 59M FLIGHT. TWO MOVIES, NO SLEEP, ONE EXISTENTIAL CRISIS.
Flight from Boston to London
From Logan (BOS), USA North America → Heathrow (LHR), United Kingdom Europe
How long is the flight from Boston to London?
A nonstop flight from Boston (BOS) to London (LHR) takes about 6 hours 59 minutes, covering a great-circle distance of 3,256 miles (5,240 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
6h 59m
Nonstop, scheduled
Distance
3,256 mi
5,240 km · great-circle
Avg speed
750 km/h
Door-to-door including taxi
Time zones & jet lag
Boston timezone
UTC-4
America/New_York
London timezone
UTC+1
Europe/London
Time difference
+5h
5 hours ahead
Jet lag (rough)
~5d
Eastward — worse
CO₂ footprint per passenger
Economy class, single passenger. Source: DEFRA 2024 averages.
This flight emits roughly 3.6× the CO₂ of an equivalent train trip and 0.9× a car driven alone over the same distance.