Great-circle route ORD ↔ YYZ. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
Frequencies below are per direction, from our most recent schedule sample. The two directions are not identical — that is normal on scheduled routes.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| ORD → YYZ Chicago to Toronto |
122/wk | Daily | Air Canada, American Airlines, United Airlines |
| YYZ → ORD Toronto to Chicago |
121/wk | Daily | Air Canada, American Airlines, Qantas, United Airlines |
Where a direction shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
In 2025, airlines reported 879,242 passengers on 10,963 flights between ORD and YYZ — about 2,410 a day — filling 82% of the 1,073,878 seats flown. Air Canada carried the most passengers (27%).
Source: US DOT T-100 segment reports — actual airline-reported traffic, scheduled service only, both directions combined. Cargo and charter flights excluded.
4 airlines fly the ORD–YYZ nonstop, including Air Canada, American Airlines, Qantas, United Airlines.
Recent scheduled departures on this route have used the Boeing 737-900, Canadair reg jet 700, Embraer 175, Airbus A220-300 and 4 other types.
Aircraft assignments change by season and by time of day.
The distance between Chicago O'Hare International Airport and Lester B. Pearson International Airport is 435 miles, or 700 kilometres.
| Great-circle distance | 435 mi |
| Kilometres | 700 km |
| Nautical miles | 378 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 4 airlines fly the route nonstop, with about 243 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 1h 29m in the air. That is a great-circle estimate from the 435-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
About 122 a week from Chicago to Toronto and 121 a week from Toronto to Chicago, from our most recent schedule sample.
Air Canada, American Airlines, Qantas, United Airlines.
In 2025, airlines reported 879,242 passengers on 10,963 scheduled flights between ORD and YYZ — about 2,410 a day — filling 82% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Boeing 737-900, Canadair reg jet 700, Embraer 175, Airbus A220-300. Assignments change by season and by time of day.
