Aegean Airlines SX-DGY is an Airbus A320-200 which has been flying for Aegean since it was new in June 2015.
Picture from Copenhagen Kastrup airport 16.5.2019 by Ilkka Siissalo.

Aegean Airlines SX-DGS is an Airbus A321 version 200. It came to Aegean's fleet in 2015 but the machine is already from the year 2001. Before Aegean it has flown for GB Airways, easyJet and Monarch Airlines. Here it is waiting for its departure slot towards Athens.
Picture from Frankfurt airport 20.11.2019 by Ilkka Siissalo.