✈ BOS → KUL
BOSTON → KUALA LUMPUR: 18H 33M. BUSINESS CLASS OR THERAPY. PICK ONE.
Flight from Boston to Kuala Lumpur
From Logan (BOS), USA North America → KLIA (KUL), Malaysia Asia
How long is the flight from Boston to Kuala Lumpur?
A nonstop flight from Boston (BOS) to Kuala Lumpur (KUL) takes about 18 hours 33 minutes, covering a great-circle distance of 9,287 miles (14,946 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
18h 33m
Nonstop, scheduled
Distance
9,287 mi
14,946 km · great-circle
Avg speed
806 km/h
Door-to-door including taxi
Time zones & jet lag
Boston timezone
UTC-4
America/New_York
Kuala Lumpur timezone
UTC+8
Asia/Kuala_Lumpur
Time difference
+12h
12 hours ahead
Jet lag (rough)
~12d
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.