Originally Posted by
jlemon
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.
Surprisingly, it's the other way round. PWA dominated with five nonstops, plus two flights routed through Victoria, while United has just one daily 727. I can recall our family doing JFK-SEA-YVR just six years earlier on a United DC8-61, and United used to have several roundtrips on the route, which would continue south or east of Seattle, but by 1980 they were pretty much left behind by little PWA.