I am going to Washington next year for a wedding. I've been looking at flights, and one of the cheapest options from London is Air Canada via Toronto. The return flight arrives at Pearson at 12 lunchtime, and leaves at 8:30pm.
Firstly, are you able to leave the airport, and will you be stuck with your suitcases? Or are they checked all the way through to London so you can leave them in the airport?
Secondly, is four or so hours in the city centre feasible with those times? I'm thinking perhaps hiring a taxi for a few hours to give us a quick city tour and take us to the main sites.
Thanks for any help!