Originally Posted by CanadianInLondon

Now being less than 24h to my scheduled AC859 LHR->YYZ flight (still showing as on-time), and I was not able to web check-in.

Anyone else had the same, or is it just my booking (with long connections in Canada), or something systemic during IROPS? I only ask as if the flight fly's I really want to be on it and wasn't able to pick my seat in advance...