YYZ

from Q3 Management’s Discussion and Analysis "In June 2016, Air Canada and Bombardier Inc. (“Bombardier”) finalized a purchase agreement which includes a firm order for 45 Airbus A220-300 aircraft (formerly called Bombardier C-Series CS300 aircraft) and options for an additional 30 Airbus A220-300 aircraft. Deliveries are scheduled to begin in late 2019 and extend to 2022."

According to Flightaware: SP-LRC Tuesday 2017-Aug-22 11:05PM EDT Toronto Pearson Int'l - YYZ 01:31PM CEST (+1) Warsaw Frederic Chopin - WAW B788 8h 26m

I'm going with Malcolm's being close but not exact, red white black grey

Although it may appear to be a perfectly round fuselage, it has a 113.25" radius on the upper portion and a 109.83" radius on the bottom portion.