[tacticalogic]

UPS operates passenger flights also.

I checked on that, and it appears FAA regulations prohibit passengers (except for flight crew) on cargo flights. If they operate passenger flights, then they must be exclusively passenger flights, not combined passenger / courier flights.

To quote Ben Franklin "Half the truth is often a great lie."

[diogenes ghost]

"...FAA regulations prohibit passengers ...on cargo flights."

Uhhh, noooo. Alaska Airlines, for one, operates 'combi' aircraft - half cargo, half passenger.