Originally Posted by
Wally Bird
United and PWA.
6) I'll second Wally's response with regard to SEA-YVR service operated by United and Pacific Western. I'll also guess that UA flew five flights, most likely with 72S equipment (although there may have actually been a D8S or even a DC-10 in the mix but I'm not sure about this), and that PWA flew one flight with a 73S.