Toronto Pearson has two passenger terminals, Terminal 1 and Terminal 3, and the quick rule covers most travellers: Air Canada and its Star Alliance partners fly from Terminal 1, while WestJet and almost everyone else use Terminal 3. There is no Terminal 2 (it was demolished in 2007). Your boarding pass always shows the right one, so treat the lists below as a planning guide and confirm before you leave.
Below is the airline-by-terminal breakdown, the exact answer for the carriers people ask about most, and how to double-check on the day you fly. Assignments are accurate as of 2026 (T1 = Terminal 1, T3 = Terminal 3).
| Airline | Terminal |
|---|---|
| Air Canada (incl. Rouge / Express) | T1 |
| United Airlines | T1 |
| Lufthansa | T1 |
| Other Star Alliance (Turkish, Austrian, Swiss) | T1 |
| Emirates | T1 |
| WestJet | T3 |
| Delta Air Lines | T3 |
| American Airlines | T3 |
| British Airways | T3 |
| Air Transat | T3 |
| Flair Airlines | T3 |
| Porter Airlines (YYZ flights) | T3 |
Which airlines use Terminal 1?
Air Canada operates its main base from Terminal 1, including Air Canada Rouge and regional Express flights. Because it anchors the Star Alliance here, the rest of that alliance lands in T1 too: United, Lufthansa, Swiss, Austrian, Turkish Airlines and the other Star members. Emirates also flies from T1.
If you are connecting between two Star Alliance flights, there is a good chance both use T1, which keeps the transfer simple.
Which airlines use Terminal 3?
Terminal 3 handles the wider mix: WestJet (its main base), its partner Delta, plus American Airlines, British Airways, Air Transat, Flair Airlines and Porter's Pearson flights. Most oneworld and SkyTeam carriers, along with a long list of international and leisure airlines, sit here as well.
In short, if you are not on Air Canada or a Star Alliance partner, Terminal 3 is the safe assumption.
What terminal is Air Canada, Delta, United or Flair at YYZ?
These four come up the most, so here are the direct answers:
- Air Canada: Terminal 1.
- United: Terminal 1 (Star Alliance).
- Delta: Terminal 3 (alongside partner WestJet).
- Flair Airlines: Terminal 3.
How do I check which terminal my flight uses?
Trust your boarding pass first: it prints the terminal and gate. For the live picture, check the airline's app or the flight-status board. As of 2026, Toronto Pearson lists every carrier and its terminal in the official airline directory, and its departures guide confirms gate areas for each one. Airlines do move between terminals from time to time, especially during construction or schedule changes, so a listing that was right last year may shift. Confirm within 24 hours of departure.
What if you are at the wrong terminal?
It is an easy fix. The free LINK Train connects T1 and T3 (and the Viscount parking station) in a few minutes, running around the clock apart from a short overnight maintenance window. Allow extra time if you land in one building and depart from the other on a tight connection.
Our terminals guide maps the layout, and the what-is-YYZ explainer covers the airport basics. Heading into the city afterward? See the cheapest way from Pearson to downtown.
