Pacific Coastal Airlines

This Canadian carrier obviously thinks its passengers (a) know a barfbag when they see one, (b) know how to use it, and (c) know what airline they are travelling with. Hence the lack of any instructions or logos on this bag.

Pacific Western (long)

Like the Canadian Forces, but printed higher up the bag.

Pacific Western (short)

Like the short Canadian Airlines and Canjet, but made by DRG.

PACTEC Air Service

This Afghan relief carrier uses standard Sic-sac bags.

PACTEC? According to their website, it means "Partners in Technology International".

Pakistan International Airlines: see PIA