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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
- Rush-hour high-frequency
Consult the list of high-frequency 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.
They offer:
- 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 Eastbound | Westbound
Beaubien and Honoré-Beaugrand
Sherbrooke Eastbound | Westbound
Guy-Concordia, McGill, Peel, Place-des-Arts, Sherbrooke and Villa-Maria
Édouard-Montpetit Eastbound | Westbound
Édouard-Montpetit, Laurier, Snowdon and Université-de-Montréal
Saint-Michel Northbound | Southbound
Joliette and Saint-Michel
Sherbrooke Eastbound | Westbound
Vendôme 
Montréal-Ouest
Sauvé/Côte-Vertu Eastbound | Westbound
Côte-Vertu and Sauvé Sauvé
Jean-Talon Eastbound | Westbound
Honoré-Beaugrand and Saint-Michel
Côte-des-Neiges Northbound | Southbound
Côte-des-Neiges and Guy-Concordia
Express Pie-IX Northbound | Southbound
Pie-IX Saint-Michel-Montréal-Nord
Our 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
Cadillac
Langelier Northbound | Southbound
Langelier
Armand-Bombardier Northbound | Southbound
Radisson
Papineau Northbound | Southbound
Fabre and Papineau
Perras Eastbound | Westbound
Henri-Bourassa
Maurice-Duplessis Eastbound | Westbound
Henri-Bourassa
Boulevard Saint-Laurent Northbound | Southbound
De Castelnau, Henri-Bourassa, Place-d’Armes, Place-des-Arts and Saint-Laurent
Grenet Northbound | Southbound
Côte-Vertu
Gouin Eastbound | Westbound
Henri-Bourassa
Avenue du Parc Northbound | Southbound
Parc and Place-des-Arts
Saint-Jacques Eastbound | Westbound
Atwater and Vendôme Vendôme
Avenue-du-Mont-Royal Eastbound | Westbound
Mont-Royal and Pie-IX
Monkland Eastbound | Westbound
Villa-Maria
Express Newman Eastbound | Westbound
Angrignon
Verdun Eastbound | Westbound
Square-Victoria, Verdun
Airlie Eastbound | Westbound
Jolicoeur
Viau Northbound | Southbound
Viau
Van Horne Eastbound | Westbound
Outremont, Plamondon and Rosemont
Henri-Bourassa Eastbound | Westbound
Côte-Vertu and Henri-Bourassa
René-Lévesque Eastbound | Westbound
Honoré-Beaugrand
Jarry Eastbound | Westbound
Jarry
Parc-Industriel-Lachine Northbound | Southbound
Côte-Vertu
Rosemont Eastbound | Westbound
Langelier and Rosemont
Express Pierrefonds Eastbound | Westbound
Côte-Vertu
Express Victoria Eastbound | Westbound
Lionel-Groulx Dorval
The bus network includes:
All-day high-frequency lines
Rush-hour high-frequency lines
Day lines
Night 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.