Originally Posted by ericcheung

US has it's one check in desk, with a First line (flights to CLT and the old PHX flights had first)

There is no priority lane, leave lots of time, but 1pm for a 3:20pm flight is more than enough time. The Air Canada Maple Leaf Lounge is very nice. After you pass through security (after Customs), go immediately to your right and up the elevators, do not go down the escalators.

There is a priority security lane for Amex Plat holders.

Online check-in is nice, but i wouldn't worry about it. There are plenty of kiosks as well. In particular, the bag drop at YYZ is tricky. You need to pick up your luggage tag at check-in, and take it through US customs and then drop it off.

Do leave time in PHL to connect from the F terminal to Terminal A. However, if i recall correctly, the LHR flight leaves quite late and you have a long connection.

Enjoy your trip. Envoy to LHR is very nice.