Travelling from most locations, it is best to book your flight to Athens during the month of October for the best deal, although there are other times of the year which offer great deals as well.
In general, most flyers find the cheapest time to book a flight to Athens is about 60 days prior.
From most locations, the cheapest flights to Athens are found on a Monday. Booking a Saturday departure is usually the most expensive.
Typically, cheap prices to Athens are most often found for morning flights. Cheap prices are less likely for afternoon flights.