Originally Posted by
UKtravelbear
On first appearance you have 2hrs 35 minutes which may look like a long time but in reality you don't have that long at all.
What is the check in close time for TK when needing to check in a bag? 45 mins before departure? A 60 mins close (more usual for international flights) would mean you have 1.35 so not as much as you initially thought.
(and don't forget the additional security on the leg to SFO and the ban on large electronic devices in the cabin)
That's all exaggerated, to say the least:
1) OP could ask the OA/A3 counter to check the bag through at Chania. Given that both A3 and TK are *A, the possibility of them doing so is very high (based on my own numerous experience doing so).
2) Even if that does not work, the time from de-planing at ATH until one reaches the check-in area (average waiting time at luggage retrieval ~10n min, <10 min.) is much less than the 1 hour and 35 minutes you calculated!
3) The prospect of additional security on the leg to SFO and the ban on large electronic devices in the cabin happening after arrival at IST can obviously have no effect on the time needed to connect at ATH.
In brief,
justforfun's answer is 100% correct!