✈ SYD → ATH
18H 58M FLIGHT. YOU WILL FORGET WHAT GRASS LOOKS LIKE.
Flight from Sydney to Athens
From Kingsford Smith (SYD), Australia Oceania → Eleftherios Venizelos (ATH), Greece Europe
How long is the flight from Sydney to Athens?
A nonstop flight from Sydney (SYD) to Athens (ATH) takes about 18 hours 58 minutes, covering a great-circle distance of 9,511 miles (15,307 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
18h 58m
Nonstop, scheduled
Distance
9,511 mi
15,307 km · great-circle
Avg speed
807 km/h
Door-to-door including taxi
Time zones & jet lag
Sydney timezone
UTC+10
Australia/Sydney
Athens timezone
UTC+3
Europe/Athens
Time difference
-7h
7 hours behind
Jet lag (rough)
~4.9d
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.