A seasonal 815 bus service began operating in mid‑June 2026, providing a direct link between the Des Sources REM station on the West Island and Montreal‑Trudeau International Airport. The route runs through the summer months and is scheduled to continue into the fall, giving residents a new public‑transit option for airport travel.
Local officials announced the service as part of an effort to improve connectivity for West Island commuters. By tying the REM station directly to the airport, the 815 line addresses a gap in the region’s transit network that previously required multiple transfers or reliance on private vehicles.
The 815 bus is intended to run only during the warmer part of the year, matching the higher demand for travel to and from the airport in the summer season. Riders can board at the Des Sources REM stop and travel straight to the airport terminals without needing to switch to another line. The seasonal nature of the service means it will be evaluated after the fall period to determine if further extensions are warranted.
West Island residents have welcomed the addition, noting that the new route simplifies journeys that previously involved longer travel times. The initiative reflects a broader push by municipal authorities to expand public‑transport options in the suburbs and reduce reliance on cars for airport access.
While the 815 line is limited to the summer and early autumn months, officials see it as a pilot that could inform future permanent connections between the REM system and major travel hubs. For now, the bus offers a practical, direct alternative for anyone heading to Montreal‑Trudeau Airport from the West Island during the peak travel season.
The launch of the 815 service marks the latest step in enhancing regional mobility, aligning with ongoing plans to integrate the REM network more closely with key destinations across Greater Montreal.