Thank you Londonelite 😊
It just changed back to Air Canada, very confusing. Departure from Cph(to Toronto) at 10.40 says: Air Canada 883
I do not remember the exact number when it was announced as a United flight, but something over 8000.
From Toronto to New York the next day at 6.30 it says Air Canada 700. Again, I dont remember the United number, but higher than 8000