The Ottawa Student Transportation Authority (OSTA) is responsible for making bus cancellation decisions.

Bus cancellation notices can be found by:

Listening to the radio. Once the decision is made to cancel transportation, OSTA alerts the media.

Visit OSTA’s parent portal at this link to view transportation notices on delays and cancellations:

Check OSTA’s twitter feed:

If you subscribe to OSTA’s mailing list beforehand, you can also receive cancellation notices by email. Subscribe at this link:

When transportation is cancelled due to bad weather or poor road conditions, transportation is cancelled TO ALL SCHOOLS. All Schools remain open to students. If you bring your child to school, please arrange for transportation home.

Cancellations are also posted on the OCDSB website as an alert on the homepage. You can also follow @OCDSB on twitter and facebook or download the OCDSB app or subscribe to the OCDSB RSS feed.

Cancellations are also announced on Ottawa radio and television stations between 6:00 a.m. - 6:30 a.m.. These announcements are repeated at least twice per hour and more frequently on all-news stations, such as 580 CFRA Radio and 1310 News Radio on the AM dial and posted to news stations twitter accounts. 

Bus Delays:

All bus delays are also posted on the OSTA website -

Need to find your stop? 

OSTA has that information too - Stop Locator.


Bus Stop Finder

Contact OSTA

Ottawa Student Transportation Authority
Confederation Education Centre, 1645 Woodroffe Avenue
Office hours from 8 a.m. to 5 p.m.
Telephone 613-224-8800
Fax 613-224-8840

For general inquiries email

The Ottawa Student Transportation Authority has established four transportation zones within the City of Ottawa. These zones are: West, Centre West, Centre East, and East.

If you are not sure what zone your school is assigned to please check their website at Click on School Directory to display a complete listing of all schools and zones.

Transportation Zone

West Zone 224-8800 ext 2383

Centre East Zone 224-8800 ext 2381

Centre West Zone 224-8800 ext 2382

East Zone 224-8800 ext 2380





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