Bus cancellations versus school closures in Ontario
Editorial Team · November 4, 2026
Why Ontario often cancels buses and keeps schools open, and how to read the two scores on a storm morning.
Ontario families learn a frustrating sentence early: buses are cancelled, schools are open. It is not a contradiction. District school boards decide whether buildings are open. Transportation consortia, which the boards jointly operate, decide whether the yellow buses run. The two choices use some of the same weather and a different tolerance for risk, because a bus route fails before a school building does.
What the split means for your morning
If the school is open and the bus is not, getting there becomes a family decision. Many boards say, in their own words, that parents and guardians are responsible for the trip when transportation is cancelled. The exact absence process, and whether the day counts, lives on the school's site. We will not invent a province-wide attendance rule. If the roads between you and the school are unsafe, staying home and reporting the absence the way the school asks is a reasonable reading of a bad morning. If you can walk or you are comfortable driving, the school may well be teaching.
Public transit is a third system. In Toronto, a cancelled school bus is not an announcement about the TTC. In Ottawa, it is not an announcement about OC Transpo. Read the thing your child actually rides.
Where to look
School Bus Ontario publishes a directory of transportation consortia. The board pages on this site link the consortium when we have checked the board's own page or the consortium's own about text. Examples include STOPR for Peel, TSTG for the Toronto boards, OSTA in Ottawa, and STSWR in Waterloo Region. Halton posts status by zone. Simcoe County's consortium posts a target time. Those details are theirs; we paraphrase and link rather than copying their statistics.
The Ontario government also keeps a finder for school boards if you are new to an address and do not yet know which board it is.
How the two scores differ
Our bus curve rises earlier than the closure curve. A few centimetres, some gusts, or a couple of hours of freezing rain can put the bus score in the "likely" band while the closure score is still only "possible". Rural and elementary settings push the bus number a bit further, because the route is longer or the walker is smaller. None of that is a consortium's policy. It is a way of making the usual Ontario split visible the night before. The morning still belongs to the board and the bus site. For the arithmetic, see the methodology.
Editorial Team. The Editorial Team writes and maintains this site. We document the predictor, check school-board and transportation links against the organizations' own websites, and correct pages when those sites change. We are not a school board, a transportation consortium, or a government office.