Welcome aboard Lines 2 & 4

Updated on January 16, 2025

Six-day
service starts January 25

Connecting Ottawa South

Lines 2 & 4 are expanding the O-Train south, from Bayview station to Limebank and Airport station. These new lines connect Little Italy to Riverside South, with frequent departures to Carleton University and the Ottawa International Airport.

Get ready
For the Lines Line 2 icon & Line 4 icon:
Weekdays + Saturday

We understand that transitioning to a new service can be challenging, especially when it comes to your commute.

Since the launch of weekday service on January 6, O-Train 2& 4 have demonstrated safe and consistent performance. We are now ready to expand service to six days a week (Monday to Saturday) starting January 25. There will be no changes to the current bus service.

Buses will continue to run as they do today.

This will allow customers the flexibility to continue using the bus while they transition to the new train lines.

Two passengers sitting aboard the FLRT train, smiling at each other.
Six-Day service starts January 25

Lines 2 4
Phased opening

Lessons learned and insights from the Public Inquiry report have shaped the phased opening of Lines 2 and 4. Organized into three phases, this approach helps customers get familiar with the service while supporting staff training.

The first phase, a five-days-a-week service, has been in place since January 6.

Starting January 25, service will include Saturdays. After a minimum of two weeks, it will expand to full seven-day service.

Here's an overview of the three phases:

Phase 1

Launched - Jan 6

5-day service

Phase 2

Starting Jan 25

6-day service

For min. two weeks

Phase 3

Full week service

7-day service

Why two weeks?

A minimum of two weeks is necessary to ensure the system operates safely and reliably before moving to the next phase. This period allows staff to closely monitor the system, identify and address any potential issues, and ensure an optimal customer experience.

To ensure a smooth transition, bus service will continue alongside Lines 2 & 4.

Stay tuned for updates !

Learn more

Bus service during the transition period

Drawing from experience, we’ve designed a plan to support you and ease your transition to the O-Train. Parallel bus service will continue after Lines 2 4open.

  • This service is designed to provide transportation options as you get accustomed to the new train system.
  • Transition bus service will continue to run alongside the Lines 2 & 4, including for a period of time after seven-day service begins.

What to expect?

Bayview - South Keys

Line 2 bus service will continue to run between Bayview and South Keys stations, under a new name: B2.
B2 bus service will serve the same station stops as before.

97Rapid Route

Ottawa Airport

Route 97 will continue to run to the Airport, providing service alongside Line 4 between South Keys and the Airport.

99Rapid Route

Leitrim

Route 99 will continue to run its current route in the south.

This will provide bus service alongside Line 2 in the south, and will make connections at Walkley, Greenboro, South Keys and Leitrim Stations.

74, 198, 278, and 406

will connect to Limebank Station.

Transition period map

Parallel bus service map after the launch of Lines 2 & 4
Click on the map to open the PDF

Bus network changes coming in April 2025

The New Ways to Bus network is planned to come into effect in April 2025, opening up new convenient connections across the city.

What you need to know :

Bus route changes Routes not changing Updated Bus Network map