We help you find cheap flights by searching thousands of routes, across hundreds of airlines, so that you can easily compare the prices. Delta Air Lines is normally the cheapest airline for flying from Toronto Lester B. Pearson International Airport to London Heathrow. But we recommend that you check all possible airlines, to be sure of getting a great deal.
The most popular airlines to fly with are Finnair, British Airways & Delta Air Lines, but they're not always the cheapest. If you want a bargain, try widening your search to include other airports in London and more flights."> You can also find cheap accommodation in London with Netflights, for either your whole trip or just one night's stay near the airport.
Did you know you can compare accommodation prices too? If you need somewhere to stay in London, take a look at our hotel options to get an idea of prices.
