No one lately, but...
I sat next to Pierre Pettigrew on a YOW-YUL flight two campaigns ago (when he was still health minister).
I sat behind Frank McKenna on a YQM-YUL flight, just before he became a diplomat...
I saw Jessica Alba in line at security in the YVR international terminal.
I'm pretty sure I saw Mike Bullard in T2 MLL (back when Bullard was on TV, and T2 MLL was in use)
I almost tripped over Stephen Harper when deplaning from a YYZ-YOW flight...