Heathrow (LHR) to Athens International (ATH). Served by British Airways, Aegean.
A nonstop flight from London to Athens takes approximately 3h 30m.
British Airways and Aegean fly from LHR to ATH. That's 2 airlines serving this route.
The distance is 1,500 miles (2,414 km). with a nonstop flight time of about 3h 30m. Airlines on this route include British Airways, Aegean.
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