✈ SEA → CPH
10H 3M. SEATTLE TO COPENHAGEN. YOUR BACK WILL FILE A COMPLAINT.
Flight from Seattle to Copenhagen
From Sea-Tac (SEA), USA North America → Kastrup (CPH), Denmark Europe
How long is the flight from Seattle to Copenhagen?
A nonstop flight from Seattle (SEA) to Copenhagen (CPH) takes about 10 hours 3 minutes, covering a great-circle distance of 4,853 miles (7,810 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
10h 3m
Nonstop, scheduled
Distance
4,853 mi
7,810 km · great-circle
Avg speed
777 km/h
Door-to-door including taxi
Time zones & jet lag
Seattle timezone
UTC-7
America/Los_Angeles
Copenhagen timezone
UTC+2
Europe/Copenhagen
Time difference
+9h
9 hours ahead
Jet lag (rough)
~9d
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.