ICE318 KEF-OSL - in descent to OSL - so Iceland is open, erm.... isn't that a bit closer to this volcano than Scotland...
BA A320 seemed to vary speeds quite a lot during his 2 hour loiter.
Not going to pro-Ryanair here but kudos to them for challenging the CAA reports, and bad form from the CAA to discount their findings without so much as "lets see your reports" - yes they flew at FL410 (I think) but so what. BA loitered at much lower levels. Ryanair HAD to climb and descend through the "ash" layer to get in and out of PIK. Must have some credence.