Join Date: May 2009
Location: MAD/LAX/MNL/PIT
Programs: DL DM, PR, TG, UA, CX (Asia Miles), BT, AY, AA
Posts: 906
I've flown on countless MU flights (mostly LAX-PVG-MNL), and I haven't smelled cigarette smoke even once.
I'm bound to fly MU/FM again (to DEL and BKK) next year, and I would expect those flights to remain similarly smoke-free.