If you're looking to fly from London Heathrow to Ottawa, you might like to know that 06 / Oct / 2025 currently has the cheapest flights. At the moment, there are eight airlines flying to Ottawa. Go through the results to find the right flights for you – you can adjust the filters to see find even more flights to Ottawa.
The most popular airlines offering flights to Ottawa are Air Canada, British Airways & Lufthansa. Air Canada is the most popular one, but that doesn’t mean their flights will be the cheapest. If you can't find a flight time that suits you, why not look at flying out from a different airport?
Your flight from London Heathrow to Ottawa will take at least 7 hrs 20 mins. On average, it takes 11 hrs 25 mins to fly the 5350 km distance. Take a look at flight times to see which one works best for you.
November is normally the cheapest month to fly to Ottawa, but it’s important to try different options when you search. Searching by month, for instance, will show you the best time of the week to fly. August is always the most expensive time to fly but, if you check regularly and book early, you have a better chance of getting a good deal.
