What would be the best airlines for a round trip ticket from Paris to Athens.
Any suggestions ? Thanks

Either Easyjet from Orly or Aegean Air from CDG.

Or AF from CDG also flies to Athens.

For a simple, non-stop flight my general rules are
a) price (that's total price, including baggage)
b) preferred airline (FF miles, stability, backup options, etc)
c) ease of airport (some places this is higher priority)
z) whether or not they serve a cute little sandwich or not.

skyscanner.net will have all options PAR ATH

easyjet.com booked in advance best value for me

I travel light onebag.com so it works out cheapest for me

AF first/business class if money is no object

Thanks for your replys