Toronto Pearson International Airport: YYZ Code & Terminals Guide

If you’ve ever found yourself wondering what the three letters YYZ actually stand for, you’re not alone — Toronto Pearson International Airport is Canada’s busiest air hub, handling more than 40 million passengers a year, and its code carries a backstory beyond a simple abbreviation. This guide breaks down the terminals, the differences between Pearson and the city’s other airport, and what to do with a few hours between flights.

IATA code: YYZ ·
Annual passengers: over 40 million ·
Terminals: 2 (1 and 3) ·
Distance from downtown Toronto: 24 km

Eight key facts at a glance, one pattern: Pearson’s operations are split cleanly between two large terminals that serve different airline alliances, and its continued growth hinges on both airside capacity and ground transit connections.

Why is Toronto called YYZ?

What does YYZ stand for?

• YYZ is the IATA code assigned to Toronto Pearson International Airport. The code originates from the Morse‑code identifier of the former Malton radio station — “Y” for Canada, “Y” for the region, and “Z” for the specific station. (iFly.com (airport code guide))
• The code was adopted by the International Air Transport Association (IATA) and remains unchanged despite the airport’s name changes over the decades.

How did YYZ become the airport code?

• When the airport was still called Malton Airport in the 1940s, the radio station identifier was already YYZ. IATA later formalised it as the airport code. (Travel Code (airport history))
• The code gained pop‑culture fame through the instrumental track YYZ by the Canadian band Rush, which uses the Morse rhythm as its opening riff.

This explains why the code persists today despite the airport’s name changes.

What is the difference between YYZ and YTO?

Why does Toronto have two airport codes?

• YYZ is the specific code for Toronto Pearson International Airport. YTO is a metropolitan code that covers all Toronto‑area airports — Pearson (YYZ), Billy Bishop Island (YTZ), and Hamilton John C. Munro (YHM). (TripIt (airport code overview))
• Travel search engines and booking platforms use YTO to return flight options across the entire region, giving travelers more routing flexibility.

Which airports are included in YTO?

• YTO aggregates three airports: Pearson (YYZ) for long‑haul and full‑service flights, Billy Bishop (YTZ) for short‑haul domestic and US turboprop routes, and Hamilton (YHM) for low‑cost carriers and cargo. (iFly.com (YTO explanation))

This distinction matters for itinerary planning, especially for connecting flights.

Is Toronto Pearson a large airport?

How many passengers does Pearson handle annually?

• Pearson handled over 40 million passengers in 2023, making it the busiest airport in Canada and the 24th busiest in the world (TripIt (passenger statistics)).
• The airport has five runways and two main terminals, with a combined capacity of more than 47 million passengers per year (Blacklane (capacity figures)).

What is Pearson’s rank among world airports?

• By passenger traffic, it ranked 24th globally in 2023, and it is the second‑busiest airport in the Americas by international passenger volume, behind only Mexico City. (Travel Code (international ranking))

This scale also drives the airport’s continuous expansion and infrastructure upgrades.

What is the difference between Terminal 1 and Terminal 3 at Pearson?

Which airlines operate from Terminal 1?

• Terminal 1 (58 gates) is home to Air Canada and its Star Alliance partners, plus Air Transat and several other airlines. (iFly.com (terminal airline lists))
• Gate designations: D gates for domestic, E for international, F for transborder (US). (Prince of Travel (gate layouts))

Which airlines operate from Terminal 3?

• Terminal 3 (46 gates) serves WestJet, Delta, and SkyTeam alliance members, along with many international carriers such as British Airways and Emirates. (iFly.com (terminal airline lists))
• Gate designations: A gates for transborder, B/C gates for international and domestic. (Prince of Travel (gate layouts))

How do I transfer between terminals?

• The free LINK train runs landside between Terminal 1, Terminal 3, and Viscount Station (parking). It operates 24 hours, every 4–8 minutes. (Sleeping in Airports (LINK train details))
• An underground walkway also connects the terminals; the walk takes 15–20 minutes. (iFly.com (inter‑terminal connections))

Six rows, one pattern: Terminal 1 is the Air Canada fortress, Terminal 3 is the WestJet and SkyTeam base, and the LINK train makes hopping between them painless.

Understanding these differences helps travelers choose their preferred terminal for both convenience and comfort.

Why does Toronto have two airports?

What is Billy Bishop Airport?

• Billy Bishop Toronto City Airport (YTZ) is located on an island in downtown Toronto. It serves domestic and US destinations using regional jets and turboprops only. (Travel Code (Billy Bishop overview))

How does Pearson compare to Billy Bishop?

• Pearson handles long‑haul international flights, heavy cargo, and all‑size aircraft. Billy Bishop is limited to shorter ranges and smaller planes due to its short runway. (iFly.com (airport comparison))
• Pearson is 24 km northwest of downtown; Billy Bishop is 2 km from the city center. The trade‑off is distance versus flight options.

Is there a third airport planned (Pickering)?

• The Pickering Airport Lands, about 50 km east of Toronto, have been reserved for future aviation development, but no construction timeline has been announced. (TripIt (Pickering land discussion))

This complementary system helps distribute traffic and provides options for different traveler needs.

What is the airport 45 minute rule?

What is the 45 minute check‑in rule?

• The “45‑minute rule” refers to the cut‑off for checking in luggage and obtaining a boarding pass for most domestic flights. Airlines enforce it strictly, with international cut‑offs often at 60–90 minutes before departure. (iFly.com (check‑in rules))
• Pearson’s security waits can be unpredictable, so arriving two hours before a domestic flight and three hours before an international flight is the standard advice.

What can you do at Pearson during a 6‑hour layover?

1. Check security re‑entry time if you leave the airside area — budget 30 minutes for screening.
2. Visit a lounge (e.g., Plaza Premium Lounge in Terminal 1 for showers and snacks).
3. Take the UP Express downtown — 25 minutes to Union Station, explore Toronto’s core, then return.
4. Use the gym or yoga room in Terminal 1 if you need to stretch.
5. Shop duty‑free or dine at restaurants available in both terminals.

• Lounge access: Plaza Premium Lounge in Terminal 1 (Node F) offers showers, snacks, and rest. (Prince of Travel (amenities))
• Duty‑free shopping and restaurants are available in both terminals. Terminal 1 has a fitness centre and a yoga room. (Prince of Travel (amenities))
• Take the UP Express downtown: 25 minutes to Union Station, then explore Toronto’s core and return. (TripIt (UP Express))

This rule essentially determines how early you need to be at the airport; for layover activities, time management is key.

Timeline

This timeline shows the airport’s evolution from a small airfield to Canada’s busiest aviation hub.

Confirmed facts and uncertainties

Confirmed facts

• YYZ code originated from the Morse‑code identifier of the Malton radio station. (Sleeping in Airports)
• Pearson is Canada’s largest airport. (Travel Code)
• Two terminals serve distinct airline alliances. (iFly.com)
• Billy Bishop is the secondary downtown airport. (Travel Code)

What’s still uncertain

• The future of the Pickering Airport lands — no construction timeline has been set. (TripIt)
• The exact impact of proposed high‑speed rail on Pearson transit connections remains unconfirmed. (TripIt)

These uncertainties highlight the long‑term planning challenges facing Toronto’s aviation infrastructure.

Quotes from aviation sources

“The YYZ code dates back to the 1940s when the airport was known as Malton.”

— GTAA history page (via Sleeping in Airports)

“Toronto Pearson is the busiest airport in Canada and the 24th busiest in the world (2023).”

— Wikipedia (via multiple sources)

These quotes underscore the historical significance and current scale of Pearson Airport.

The implication for any traveler: Pearson is not just a transit point — it is a hub with its own internal geography, a historical code, and a growing network of connections. For a traveler connecting through YYZ, knowing which terminal you land in and how to move between them can save 30 minutes or more. The airport’s continued expansion and the looming possibility of a third Toronto airport will keep Pearson in the spotlight for years to come.

For travelers flying through Terminal 1 or 3, a detailed Terminal 3 guide can help navigate the airport’s layout and airline assignments.

Frequently asked questions

These answers address the most common traveler questions about Pearson’s facilities and services.

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