I get a giggle out of mainline folks that want to lecture regional crews about money. When you are a regional FA or FO making peanuts compared to mainline crews $40 or $50 bucks a month in tips just for a ride to and from work can be a bit much. However Captains are a different story.

If you ask the van driver for something extra like a ride to the restaurant or downtown, then a tip is always appropriate for something outside of a ride to the airport.

Also for you mainline types, most regional FOs and FAs eat out of lunchbags in order to make money off their per diem and pay bills, no spend it in tips.