Volaris
I drove into Ayr along Prestwick bypass just before 1700 BST and got a good view of the aircraft - wondered what was happening until it was mentioned on radio news a few minutes later. Traffic seemed pretty normal for that time of day; a Cargolux 747 landed (Rwy31) about 1650, just after a 737 (probably Ryanair) departed, so PIK seems to be working normally too.