I've got a buddy who was selected for Ryanair last year while he was instructing but sadly had to pack the instructing in.
He was booking lessons with students, then having to cancel them last minuate because of changes on the roster etc. He was also moved to Spain quickly after he started the job.
We have a few lads from Ryanair at the club I'm at, but none of them instruct same with a few Easyjet lads I know.