There are 15 airports in London: Stansted Airport, London Luton Airport, Paddington Railway Station, St Pancras International RailSt, London Heathrow Airport, Euston Railway Station, Liverpool St Rail Station, Ebbsfleet International Rail Station, London City Airport, Kings Cross Rail Station, Stratford International Rail Station, Victoria Railway, London-Waterloo, London Gatwick Airport and London Southend Airport.

The best price for a return flight from Ontario to London is €1,007.78. The average price for a ticket is €1,007.78

There is no airline that directly flies from Ontario to London.