Find a good deal on your flight from London to Ontario (USA) with Netflights. 233 flights go via this route every week, and we've collected them all to help you find the best deal. If you want to keep your options open, take a look at flights from another airport in London.
The most popular airlines for this route are British Airways, Virgin Atlantic & KLM, while London Heathrow (LHR) is the most popular departure airport in the city. But when you fly is just as important as where you fly from. Search by month to find out when flights are at the priciest and their cheapest.
Last-minute deals can be cheaper, but it's risky. It's best to book flights to Ontario (USA) in advance to avoid disappointment. KLM usually have the lowest prices, so keep an eye out for their flights. Flights from London to Ontario (USA) generally take about 18 hrs 20 mins.
Today, we’ve scanned 1,367 flights, to help you see all the options for your trip to Ontario (USA). Once you’ve chosen your flight, why not check out our deals on accommodation and car hire? You’ll find lots of hotels in the USA, including some close to the airport – perfect if you're arriving late or leaving early.