Two types of high-frequency lines
Take your time! Our high-frequency lines offer predictable, efficient service with departures generally* every 2 to 12 minutes, Monday through Friday.
The two types are:
- All-day high-frequency : 9 lines
- Rush-hour high-frequency: 22 lines
What are high-frequency lines?
Did you know that 50% of bus trips in the agglomeration of Montréal are taken on high-frequency lines?
Our convenient high-frequency lines provide efficient transportation with buses running more often on our busiest routes. There are two types of high-frequency lines: all day and rush hour.
High-frequency lines are easy to use and offer many benefits:
- Large area of coverage with many transfers to other high-frequency lines and to the métro, REM and exo
- Reserved lanes for faster, more regular service
- Departures generally* every 2 to 12 minutes, Monday to Friday, all day or during rush hour
- Flexibility to suit your needs
Enjoy consistent service without too much trip planning, for greater freedom and peace of mind.
A new colour for a new kind of service
Our high-frequency lines use the colour purple. You’ll see it in several places when planning your trips and along your route. This will help you make more informed choices and better differentiate our high-frequency lines from other bus lines.
The purple associated with these bus lines is now visible on the stm.info web page, and will gradually be added to transit-related mobile apps, bus stop signs and, eventually, network maps.
The high-frequency lines
All-day high-frequency lines are perfect for your everyday transportation needs.
- More service on our busiest routes
- Departures generally* every 2 to 12 minutes between 6 a.m. and 8 p.m., Monday to Friday, in both directions.
View full schedules and routes:
Beaubien and Honoré-Beaugrand
Guy-Concordia, McGill, Peel, Place-des-Arts, Sherbrooke and Villa-Maria
Édouard-Montpetit, Laurier, Snowdon and Université-de-Montréal
Saint-Michel Northbound | Southbound
Joliette and Saint-Michel
Côte-Vertu and Sauvé Sauvé
Honoré-Beaugrand and Saint-Michel
Côte-des-Neiges Northbound | Southbound
Côte-des-Neiges and Guy-Concordia
Express Pie-IX Northbound | Southbound
Our 22 rush-hour high-frequency lines provide efficient transportation with increased departures when you need them most.
- Monday to Friday, generally* every 2 to 12 minutes during rush hour in the busier direction
- AM: usually from 6:30 a.m. to 9:30 a.m.
- PM: usually from 3 p.m. to 6 p.m.
View full schedules and routes:
Lacordaire Northbound | Southbound
Langelier Northbound | Southbound
Armand-Bombardier Northbound | Southbound
Papineau Northbound | Southbound
Fabre and Papineau
Boulevard Saint-Laurent Northbound | Southbound
De Castelnau, Henri-Bourassa, Place-d’Armes, Place-des-Arts and Saint-Laurent
Grenet Northbound | Southbound
Avenue du Parc Northbound | Southbound
Parc and Place-des-Arts
Atwater and Vendôme Vendôme
Mont-Royal and Pie-IX
Viau Northbound | Southbound
Outremont, Plamondon and Rosemont
Côte-Vertu and Henri-Bourassa
Parc-Industriel-Lachine Northbound | Southbound
Langelier and Rosemont
The bus network includes:
All-day high-frequency lines
Rush-hour high-frequency lines
The bus network at your fingertips
Our real-time tools keep you updated on what’s happening in our networks and help you make your everyday trips like a pro. Stay informed to avoid any surprises.
- Download these mobile applications to help you get around
- Use our trip planner to help you plan your route
- Receive real time bus schedules by text message
- Follow @stm_bus on X (Twitter) for real-time information on bus network service disruptions
- Check for service updates on your bus line
*Buses on our high-frequency lines are scheduled to run generally every 2 to 12 minutes. However, this is subject to various factors, including traffic, construction work, road blocks and weather. Although our team works continuously throughout the day to reduce the impact of these factors, they sometimes result in slower service and delays to the planned schedule.