Navigating YYZ
 

Hi all,

I am trying to figure out YYZ for a mileage run. Can someone please tell me if I can connect airside from an AC or UA flight (from US) to a BA flight (int'l) airside, without going through customs? What about from an AA flight to a BA flight? And vice versa at the end? Thanks so much!

As this is more a YYZ topic rather than an Air Canada or Aeroplan specific topic the thread has been relocated to the Canada forum for further discussion.

tcook052
Air Canada forum moderator

In all those situations you will clear immigration, customs, and reclear security at YYZ. Note that AC/UA will use T1 which will require a train transfer from T1->T3, whereas AA->BA will all be in T3.

Thanks, all! I wasn't sure if T3 had an internal pass-through or if customs was a must. I think this clarifies that customs is a must in either case, and the only thing that changes is the train.