There were three flights planned on ET aircraft, all using ones that daystop in Europe between their schedules.
One for sure would be Brussels. This would equate to BRU-LPL-KBP-BRU then BRU-KBP-LPL-BRU. How I'd love to know what the cost of the air fare was to the punters considering it included 4 out of 6 fairly lengthy sectors being empty (positioning) sectors.