The UPS B757 has operated for at least three seasons though but during the winter schedule the timings differ completely with the a/c departing to WAW in the early hours.
As you point out the a/c day stops with the summer schedules. Why the wide variation between summer & winter cargo who can say.Nice to see even so.
EZY has commenced STN/CDG Days1.4.5.7 with 31,000 customers predicted thru to end of Summer.