There are 30 direct and indirect flights connecting Athens and Osaka every week, with the journey taking 24 hrs 40 mins on average.
Lufthansa, All Nippon & Qatar Airways are the most popular airlines for flying from Athens to Osaka. Adjust your search options to look by month, and see how much you could save if you fly during low season.
If you're not sure who to fly with from Athens, you might like to know that Lufthansa is the most popular airline for this route.
But if you can't find one which is right for you, try looking at flights to other cities in Japan to check out some other options.