Great-circle route YYZ ↔ IAH. 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.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| YYZ → IAH Toronto to Houston |
28/wk | Daily | Air Canada, United Airlines |
| IAH → YYZ Houston to Toronto |
28/wk | Daily | Air Canada, 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 321,387 passengers on 2,782 flights between YYZ and IAH — about 881 a day — filling 83% of the 386,732 seats flown. United Air Lines Inc. carried the most passengers (54%).
Source: US DOT T-100 segment reports — actual airline-reported traffic, scheduled service only, both directions combined. Cargo and charter flights excluded.
2 airlines fly the YYZ–IAH nonstop, including Air Canada, United Airlines.
Recent scheduled departures on this route have used the Airbus A320, Boeing 737, Airbus A319, Boeing 737-700.
Aircraft assignments change by season and by time of day.
The distance between Lester B. Pearson International Airport and George Bush Intercontinental Houston Airport is 1,280 miles, or 2,060 kilometres.
| Great-circle distance | 1,280 mi |
| Kilometres | 2,060 km |
| Nautical miles | 1,112 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 2 airlines fly the route nonstop, with about 56 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 3h 05m in the air. That is a great-circle estimate from the 1,280-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 28 a week from Toronto to Houston and 28 a week from Houston to Toronto, from our most recent schedule sample.
Air Canada, United Airlines.
In 2025, airlines reported 321,387 passengers on 2,782 scheduled flights between YYZ and IAH — about 881 a day — filling 83% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Airbus A320, Boeing 737, Airbus A319, Boeing 737-700. Assignments change by season and by time of day.
