Daily Service Curtailed to JFK?

Looking through todays' airline flights into JFK, I noticed that there seems to be no Austrian flight from Vienna to JFK. I looked on their website, but I can't find a flight schedule. Have they discontinued their daily flight into JFK after all these years ? Which days are there no flights? Are any other airlines also no longer having daily flights for the winter? Olympic also used to skip days but they no longer are in service to JFK.

Autrian
OS0087
OE-LAX

This is scheduled into JFK today.