Since YYZ is one of my home airports, I’ll chip in with some information.
Short Description
Pearson Airport is located 27 Kilometers northwest from downtown Toronto. The land surface that forms the airport is actually located in the City of Mississauga in Peel Region (a Toronto Suburb – largest population suburb in the GTA actually) as oppose to the City of Toronto although a tiny part on the southeastern portion is part of the City of Toronto. It is Canada’s busiest airport and also the most expensive airport in the world for planes to land.
Terminals
There are two terminals at YYZ both of whom have Canadian and U.S. pre-clearance immigration facilities and both handle domestic, transborder (U.S. bound), and international flights. Arrivals & Departures are also segregated at both terminals.
Terminal 1
Description: The New Terminal 1 opened in 2004 and is very bright, clean and airy. This terminal is mainly used by AC and the carrier’s affiliates as well as the airline’s *A partners though airlines such as JM, AZ, EK, EY, FI, 9W, MX, WG also uses the terminal.
Lounges:
AC Maple Leaf Lounge: There are three of them - 1) International 2) Domestic 3) Transborder and which one you get will depend on where you are flying to. These are among AC’s flagship lounges as the airport is the carrier’s biggest hub. Flagship means great right? Well it depends on how you define great and what your expectations are. If you have the expectation or the standard of the SIN SKL, CX Wing/Pier, BA Concorde Room at LHR, or the VS Clubhouse at LHR T3 then you’ll be disappointed. After all AC’s overall standard as an operating carrier isn’t at the same level as the likes of SQ, CX, BA, TG, etc.
However if you don’t expect too much nor get too excited then you’ll find yourself at a descent lounge. All three have shower facilities and wi-fi. There really isn’t an extensive hot meal items such as at the SIN SKL, the Heaven at the Wing/Pier, etc so don’t expect to get a heavy full meal out there but rather treat them as snacks. The most noticeable hot item is the soup. Also available are salads and breads and your normal junkies such as chips, cookies, etc. Overall I find the MLL at YYZ to be better than any of UA’s RCC I’ve been to.
Terminal 3
Description:Terminal 3 handles all non-*A carriers with the exception of the non *A carriers mentioned for Terminal 1. This is the terminal located directly across from and connected to the Sheraton Gateway Hotel.
Lounges:
AA Admirals Club: Only accessible if you are departing for U.S. bound flights. Not worth spending lots of time nor would I sweat getting inside if denied entry. No shower facilities and of course you have to pay if you want food. They do have computers for internet browsing if there is a positive aspect of the lounge.
BA Lounge: Other than the nice pre-flight dining for BA F passengers, the self-service food selection is very very weak (even slightly worse to KL lounge if you ask me. See below for KL lounge description). Limited to chips, cookies, rolls, and other small bites. No shower facilities either. Mainly used by BA and CX passengers. Free wi-fi is available.
KLM Lounge: Located in the “C” gate area of the terminal, this lounge is mainly used by KL, AF, KE. Actually not as bad as my expectations thought it would be when I went in prior to my AF flight in May. Food wise limited to just snacks but overall wasn’t a bad place to wait for a flight. And if you don’t have status nor access privileges to the lounge you can actually pay $25 CDN to get inside. Whether $25 CDN is worth the price of admission is up to the passenger’s discretion on his/her standard of a “good lounge” and how he/she values being in a lounge facility.
Any Restaurants & Fast Food Worth Dining at?
There really isn’t any in particular that I would “highly” recommend. However if there is something which is highly representative of Greater Toronto but not necessarily the case outside of Canada, then why not get a bite or drink from Tim Hortons which has locations at both Terminal 1 (2 at post security of the international departures & 1 at post security for domestic departures) and Terminal 3 (one each at post security international & post security transborder).
Moving Between Terminals
There is a LINK Train connecting the Long Term Parking lot located near Viscount Road which connects over to level 3 of Terminal 3 and then on to level 5 of Terminal 1 going in both directions.
Transit & Connection
You are connecting International to International or USA to International or Vice Versa. Do you need to clear CBSA (Canada Border Service Agency)?
The answer to this question lies on which terminal you are arriving into and which terminal your onward flight is leaving from.
Terminal 3 to Terminal 3 or Terminal 3 to Terminal 1 or Vice Versa
There are no airside transfers within Terminal 3 nor airside pathways linking Terminal 3 to Terminal 1. If you fall under this category then you have no choice but to clear Canada Immigration & Customs if you are going international to international or USA to international. And if you are going from an International to a US destination you have to clear Canada Immigration & Customs and then proceed to pre-clear US Immigration & Customs.
Terminal 1 to Terminal 1
There are some cases where you are not required to clear CBSA when transiting within Terminal 1 though you will still have to pass through a passport check station though this station known as Custom B which is different from the passport control handling entry into Canada (Custom A). Here are some helpful links that outlines the procedure for transiting within Terminal 1:
Short Description
Pearson Airport is located 27 Kilometers northwest from downtown Toronto. The land surface that forms the airport is actually located in the City of Mississauga in Peel Region (a Toronto Suburb – largest population suburb in the GTA actually) as oppose to the City of Toronto although a tiny part on the southeastern portion is part of the City of Toronto. It is Canada’s busiest airport and also the most expensive airport in the world for planes to land.

Terminals
There are two terminals at YYZ both of whom have Canadian and U.S. pre-clearance immigration facilities and both handle domestic, transborder (U.S. bound), and international flights. Arrivals & Departures are also segregated at both terminals.
Terminal 1
Description: The New Terminal 1 opened in 2004 and is very bright, clean and airy. This terminal is mainly used by AC and the carrier’s affiliates as well as the airline’s *A partners though airlines such as JM, AZ, EK, EY, FI, 9W, MX, WG also uses the terminal.
Lounges:
AC Maple Leaf Lounge: There are three of them - 1) International 2) Domestic 3) Transborder and which one you get will depend on where you are flying to. These are among AC’s flagship lounges as the airport is the carrier’s biggest hub. Flagship means great right? Well it depends on how you define great and what your expectations are. If you have the expectation or the standard of the SIN SKL, CX Wing/Pier, BA Concorde Room at LHR, or the VS Clubhouse at LHR T3 then you’ll be disappointed. After all AC’s overall standard as an operating carrier isn’t at the same level as the likes of SQ, CX, BA, TG, etc.

Terminal 3
Description:Terminal 3 handles all non-*A carriers with the exception of the non *A carriers mentioned for Terminal 1. This is the terminal located directly across from and connected to the Sheraton Gateway Hotel.
Lounges:
AA Admirals Club: Only accessible if you are departing for U.S. bound flights. Not worth spending lots of time nor would I sweat getting inside if denied entry. No shower facilities and of course you have to pay if you want food. They do have computers for internet browsing if there is a positive aspect of the lounge.
BA Lounge: Other than the nice pre-flight dining for BA F passengers, the self-service food selection is very very weak (even slightly worse to KL lounge if you ask me. See below for KL lounge description). Limited to chips, cookies, rolls, and other small bites. No shower facilities either. Mainly used by BA and CX passengers. Free wi-fi is available.
KLM Lounge: Located in the “C” gate area of the terminal, this lounge is mainly used by KL, AF, KE. Actually not as bad as my expectations thought it would be when I went in prior to my AF flight in May. Food wise limited to just snacks but overall wasn’t a bad place to wait for a flight. And if you don’t have status nor access privileges to the lounge you can actually pay $25 CDN to get inside. Whether $25 CDN is worth the price of admission is up to the passenger’s discretion on his/her standard of a “good lounge” and how he/she values being in a lounge facility.
Any Restaurants & Fast Food Worth Dining at?
There really isn’t any in particular that I would “highly” recommend. However if there is something which is highly representative of Greater Toronto but not necessarily the case outside of Canada, then why not get a bite or drink from Tim Hortons which has locations at both Terminal 1 (2 at post security of the international departures & 1 at post security for domestic departures) and Terminal 3 (one each at post security international & post security transborder).
Moving Between Terminals
There is a LINK Train connecting the Long Term Parking lot located near Viscount Road which connects over to level 3 of Terminal 3 and then on to level 5 of Terminal 1 going in both directions.
Transit & Connection
You are connecting International to International or USA to International or Vice Versa. Do you need to clear CBSA (Canada Border Service Agency)?
The answer to this question lies on which terminal you are arriving into and which terminal your onward flight is leaving from.
Terminal 3 to Terminal 3 or Terminal 3 to Terminal 1 or Vice Versa
There are no airside transfers within Terminal 3 nor airside pathways linking Terminal 3 to Terminal 1. If you fall under this category then you have no choice but to clear Canada Immigration & Customs if you are going international to international or USA to international. And if you are going from an International to a US destination you have to clear Canada Immigration & Customs and then proceed to pre-clear US Immigration & Customs.
Terminal 1 to Terminal 1
There are some cases where you are not required to clear CBSA when transiting within Terminal 1 though you will still have to pass through a passport check station though this station known as Custom B which is different from the passport control handling entry into Canada (Custom A). Here are some helpful links that outlines the procedure for transiting within Terminal 1:
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