Wirelessly posted (BlackBerry: BlackBerry8530/5.0.0.1030 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/417)
"Kind of strange because AA wouldn't have operated that route - any non-stops would have been on US anyway."
Things have changed since the AA/US merger. Now, both AA and US fly nonstops on the SEA-PHX route (along with AS). In fact, AA now has non-stops from PHX to SNA, DTW, and EWR, in addition to non-stops to its hubs at DFW, ORD, and MIA.