I sat next to Evan Dando (lead singer of The Lemonheads once).
I also sat among the winners of the Irish version of Popstars. As they were in Economy, I felt like asking how the career was going - it wasn't - but I bit my tongue.
I've seen a few politicians as well. Had to sit next to Martin Ferris once. Just where you want to be on a plane, next to a convicted terrorist.
The only at the airport sightings I can remember are Rudi Voeller and Christian Cullen.