Mid‑June 2026 saw the launch of a new bus route, numbered 815, that links the Des Sources station on the REM line with Montreal‑Trudeau Airport. The service began operation as the summer season started and is scheduled to run through the warmer months and into the fall, providing a direct public‑transit option for residents of Montreal’s West Island who need to reach the airport.
Montreal transit officials explained that the 815 line was created to improve the connection between the REM network and the international airport. By tying the Des Sources station, a key point on the REM system, directly to the airport, the route adds an additional choice for travelers who previously relied on other bus lines or private vehicles. The new service is expected to streamline travel for commuters and visitors alike, reducing the need for multiple transfers.
For West Island residents, the introduction of the 815 bus offers a convenient alternative for reaching Montreal‑Trudeau Airport without leaving the public‑transit system. The route’s schedule aligns with the summer travel peak and will continue into the autumn months, ensuring consistent access throughout the season. Transit officials anticipate that the added link will support the growing demand for efficient airport transportation from the western suburbs of the city.