The offer:
Terms and conditions for flights from/to Greece & International destinations
The offer is valid for all direct & connecting flights across our network, one way or roundtrips. Valid for bookings made on 29/11/2024 (00:01-23:59) and travel from 13/01/2025 until 25/10/2025 for flights operated by AEGEAN and Olympic Air. All codeshare flights are excluded. The discount refers to the fare of the ticket, to fuel surcharges (only when applied) and it does not include the airport taxes. 70% discount applies to all flights between 13/01/2025 – 27/02/2025. 40% discount applies to all flights between 28/02/2025 – 10/04/2025. 30% discount applies to all flights between 11/04/2025 – 04/05/2025. 40% discount applies to all flights between 05/05/2025 – 25/10/2025. 30% discount applies to all flights of Public Services Obligation (PSO) between 13/01/2025-25/10/2025. 20% discount applies to all Business class flights between 13/01/2025-25/10/2025. Fares and fuel surcharges shown on the reservation system are already reduced by 70%, 40%, 30% and 20%. Ticket changes are permitted – relevant charges depend on fare category. In case of ticket cancellation refund policy is applied depending on fare category. The offer applies to Economy and Business class tickets. The offer ends on 29/11/2024 at 23:59 Greek time.

My notes:
As usual, they jacked up the prices. i was looking for some shorthaul from SKG and the prices were lower than usual, but nothing too exciting. There are some good midhaul deals though (ATH-LHR return for 120-ish during the 70% period is pretty sweet)
Also, contrary to what the T&C's say, C class is only 20-30% discounted even on the dates that it should have been 70%+