I know this is about planning for the Elevator workshop but thought I would throw my 2 cents in for western Canada. AirTransat also has direct flights Manchester to Calgary. I flew last Oct round trip for Cdn$ 525 and from Manchester took an inexpensive Ryanair to Dublin. Might be an option for those who want to go to the workshop and them come and see the best part of Canada
by flying in to Toronto and back from Calgary.
One thing to watch with AirTransat is their carry on baggage limits which are lower than most airlines, especially since some flights are code shared with Thomas Cook. They were quite strict in Oct and I saw them reject a number of pieces belonging to other passengers. There is no option to pay for excess - it either meets the limits or goes in checked. I had to ask my wife to help carry film as the weight limit was 5Kg for each of us. The carry on limit is a single piece (and they mean it - my wife's purse had to go in her carry on) and 43 x 28 x 23 cm (17 x 11 x 9 in.) I just managed to get my cameras inside the weight limit by putting the Mamiya 6 body in the pocket of my coat!
Martin