✈ SEA → CUN
5H 54M FROM SEATTLE TO CANCUN. JET LAG IS NOW YOUR PERSONALITY.
Flight from Seattle to Cancun
From Sea-Tac (SEA), USA North America → Cancun International (CUN), Mexico North America
How long is the flight from Seattle to Cancun?
A nonstop flight from Seattle (SEA) to Cancun (CUN) takes about 5 hours 54 minutes, covering a great-circle distance of 2,685 miles (4,321 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
5h 54m
Nonstop, scheduled
Distance
2,685 mi
4,321 km · great-circle
Avg speed
733 km/h
Door-to-door including taxi
Time zones & jet lag
Seattle timezone
UTC-7
America/Los_Angeles
Cancun timezone
UTC-5
America/Cancun
Time difference
+2h
2 hours ahead
Jet lag (rough)
~2d
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.