Very timely thread. I just booked LHR-YYZ on BA93 for a Sunday departure and was going to ask what LHR was like on a Sunday as I don't think I have ever flown into or out of Heathrow on a Sunday. I did it more to try and avoid the horrible crush of my TTC subway ride home when I get to Toronto which always coincides with a combination of rush hour and thousands of students getting on after the inevitable security incident that means 4 trains worth getting on the whole way. Good that CWS says Sunday morning is quiet