Is there any other airline that services Atens to Santorini. I know of Aegean and Olympia which seems to be the same/

Besides Olympic there's Ryanair & Sky Express.
Ryanair is cheap but read the rules on baggage very carefully otherwise it can end up much more expensive!

http://en.ellinair.com

thank you

We were impressed with Aegean.

Look no further than Aegean or its subsidiary Olympic Air. Aegean gets excellent ratings, and is based in Athens. They are my preferred airline for flights from London, and together with Olympic have the most flights to Santorini.

I don't like Ryanair's customer service model, largely based on the attitude of CEO Michael O'Leary. Sky Express is okay, but look carefully at the baggage allowance.

thanks much, probably not worth the dime saved