✈ JNB → SEA
20H 25M FROM JOHANNESBURG TO SEATTLE. THIS IS NOT TRAVEL. THIS IS ENDURANCE.
Flight from Johannesburg to Seattle
From O.R. Tambo (JNB), South Africa Africa → Sea-Tac (SEA), USA North America
How long is the flight from Johannesburg to Seattle?
A nonstop flight from Johannesburg (JNB) to Seattle (SEA) takes about 20 hours 25 minutes, covering a great-circle distance of 10,264 miles (16,519 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
20h 25m
Nonstop, scheduled
Distance
10,264 mi
16,519 km · great-circle
Avg speed
809 km/h
Door-to-door including taxi
Time zones & jet lag
Johannesburg timezone
UTC+2
Africa/Johannesburg
Seattle timezone
UTC-7
America/Los_Angeles
Time difference
-9h
9 hours behind
Jet lag (rough)
~6.3d
Westward — easier
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.