Originally Posted by
amolkold
Actually, your North American gateway is YYZ

.
The North American gateway city stopover rule is for American, not United. United allows a stopover
anywhere as long as you book a round-trip. Round-trips can have 2 open jaws, and you had 1 (JFK-LIM, LIM-SAN, with a stopover in EWR).
A better example would be flying LIM-JFK(stop)-LAX-SAN on LAN/AA, and not flying via MIA, because then you'd have to take the stopover in MIA.
Jesus! You're right of course. I fly to SA by AA mostly (or I did before they blocked the living hell out of Lima), so some rollers in my brain didn't roll all the way in, I guess. Thanks.^