Even Aer Lingus' LHR-SNN has the same issue, the schedule starts at the wrong airport every day
??.. SNN based A319 operates the LHR flights, EI380 (SNN-LHR) in the morning is far busier than the EI381 (LHR-SNN) - So I'm not exactly sure what you are referring to when you say the aircraft starts of at the wrong airport every day?