✈ SEA → LIS
10H 43M FROM SEATTLE TO LISBON. THIS IS A LIFESTYLE NOW.
Flight from Seattle to Lisbon
From Sea-Tac (SEA), USA North America → Humberto Delgado (LIS), Portugal Europe
How long is the flight from Seattle to Lisbon?
A nonstop flight from Seattle (SEA) to Lisbon (LIS) takes about 10 hours 43 minutes, covering a great-circle distance of 5,201 miles (8,371 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
10h 43m
Nonstop, scheduled
Distance
5,201 mi
8,371 km · great-circle
Avg speed
781 km/h
Door-to-door including taxi
Time zones & jet lag
Seattle timezone
UTC-7
America/Los_Angeles
Lisbon timezone
UTC+1
Europe/Lisbon
Time difference
+8h
8 hours ahead
Jet lag (rough)
~8d
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.