Line 4 alternative bus service
Overview
When O-Train Line 4 is not running during regular hours, Route 105 provides rail replacement service in addition to its regular service between St-Laurent Station and the Airport.
- Route 105 buses serve all Line 4 stations (South Keys, Uplands, and Airport).
- Extra buses may be added during peak times. Some may run shorter routes to Greenboro or South Keys.
- All Route 105 buses will show up on station information screens and in the Transit app.
- Route 105 operates 24 hours a day, 7 days a week, approximately every 30 minutes.
- Overnight, Route N105 connects to the Airport from Rideau and Hurdman stations.
- Route 105 St-Laurent trips start at Uplands Station and continue to the Airport.
- All buses departing Uplands Station head to the Airport.
For the latest updates on the status of the O-Train
- Check our Home page. Look for the yellow box at the very top of the page.
- Listen for audio announcements at Line 4 stations.
- Look for the info screens at the stations.
Route 105 – alternative service map
Click the map to enlarge.
Route 105 – alternative service stops
|
Stations |
|
|
Station maps |
|---|---|---|---|
| South Keys |
A (#3038) |
D (#3038) |
View South Keys Station map |
| Uplands |
A (#3069) |
A (#3069) |
View Uplands station map |
| Airport |
A (#3039) |
A (#3039) |
View Airport station map |
What happens during Line 4 delays or unplanned disruptions?
If rail service is disrupted, technicians will quickly respond. Our aim is to restore train service as quickly as possible.
If the issue is resolved within 15 minutes, train service will resume with only minor delays.
Sometimes, trains can continue to run along a single track. If full train service is not quickly restored, Route 105 will provide rail replacement service.
Planned Line 4 disruptions
We will notify you in advance of any planned Line 4 maintenance. Route 105 schedules will be entered in the Travel Planner.
Real-time departure times will also be available:
- Using the application Transit
- On our Home page using the Next Departures tool
- By texting your stop number to 560560
- By calling 613-560-1000, plus your stop number
