QUICK ANSWER
Pearson’s departure guide emphasizes the operating airline because codeshares can confuse terminal planning.
01
Terminal Link
Use the free T1↔T3 train when your itinerary requires a landside terminal move.
02
Border process
Canadian entry or U.S. preclearance can change the connection flow. Follow airline/Pearson instructions for your itinerary.
03
Baggage
Do not assume bags transfer on a separate ticket; verify with the airline.
Frequently asked questions
Do I need to change terminals at Pearson?
It depends on airlines and itinerary; T1 and T3 are linked by the free Terminal Link train.
What matters for a U.S. connection?
U.S. preclearance and airline/terminal instructions can materially change the process.
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Sources and verification
Time-sensitive airport, airline, visa, security and transport details should always be confirmed with the relevant official source before travel.