Lines 2 & 4 extend the O-Train south, linking Bayview to Limebank and Airport stations.
The lines connect Little Italy to Riverside South, with frequent departures to Carleton University and the Ottawa International Airport.
Get ready
For the Lines and Seven days/week
Info:
The B2 parallel bus service ended on March 29. Routes 97 and 99 will continue to operate unchanged until the launch of the New Ways to Bus service on April 27.
Since the launch of weekday service on January 6 and the six-day service on January 25,O-Train Lines 2 & 4 have demonstrated safe and consistent performance.
Service officially expanded to seven days a week on March 16.
Lessons learned and insights from the Public Inquiry report have shaped the phased opening of Lines 2and 4. Organized into three phases, this approach helps customers get familiar with the service while supporting staff training.
As of March 16, service has expanded to a full seven-day schedule, now including Sundays.
Phase 1
5-day service
Launched - Jan 6
Phase 2
6-day service
Launched - Jan 25
Phase 3
7-day service
Launched - Mar 16
Why a phased opening?
A phased opening allows staff to monitor the system closely, identify potential issues, and address them before expanding the service. This approach ensures system safety and reliability. It also ensures an optimal customer experience.
Ottawa South
Find your connection with Lines 2 & 4
Explore the stations now
13
new and upgraded stations
Designed to be accessible and modern, with platforms twice as long as before.
35
min or less
From Ottawa South to Downtown or back on O-Train Line 2.
1800
Park & Ride spaces
Available on day one at Greenboro, Leitrim, and Bowesville stations.
7
new FLIRT trains
80 metres in length—nearly 20 metres longer than a hockey rink .
1
fare gets you there
Transfer from train to bus and back at no extra cost.
12
minutes
Line 2 and 4 trains are scheduled every 12 mins.
+
Bike connections
Paths, bike parking, and space on buses and trains make it easy to bring your bike.
Travel Planner now available
Lines 2& 4's full week service (Monday to Sunday) launched on March 16.
Get ahead with our Travel Planner—explore the service, check schedules for Weekdays, Saturdays, and Sundays, and start planning your journeys today!
Bus service for full seven-day O-Train South service
Drawing from experience, we’ve designed a plan to support you and ease your transition to the O-Train.
Here’s how bus service in the south connects with Lines 2 and 4 now that the seven-day service is launched:
74, 198, 278,and 406
Routes 74, 278, 198, 406
will continue to provide connections to Limebank Station.
Route 97
Route 97
will continue to run every 15 minutes, serving South Keys, the Airport, and running alongside Line 4 between South Keys and the Airport. The service will continue until April 27.
Route 99
Route 99
will make a new connection at Limebank Station, with buses running every 30 minutes. The service will continue until April 27.
O-Train service disruptions
If there’s a disruption to O-Train service on Lines 2 or 4 during the transition period, nearby alternate bus service will be running.
This was an important lesson learned from the launch of O-Train Line 1.
During disruptions:
Our control centrewill actively monitor these routes and add additional buses when possible to meet demand.
Audio and visual messages, along with station signage, will help guide you during your journey.
If there are delays, stay updated by following OC Transpo on social media or checking our website homepage for service updates.
Bus network changes coming April 27
The New Ways to Bus network will come into effect in April 27, opening up new convenient connections across the city.