£241 Find Cheap Flights from Ottawa to London Heathrow Airport – Compare and Save

Your flight ticket price will generally be cheaper if you fly to London Heathrow Airport on a Thursday and more expensive on a Sunday. On your return trip to Ottawa, you should consider flying back on a Thursday, and avoid Wednesdays for better deals.

The cheapest month for flights from Ottawa to London Heathrow Airport is September, where tickets cost £526 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £803 and £675 respectively.

No, with an average price for the route of £659, prices are generally cheapest when you fly direct.

To get a below average price on the flight from Ottawa to London Heathrow Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

In the past 5 days, the cheapest return tickets from Ottawa to London Heathrow Airport were found on Air Canada (£506) and Lufthansa (£566).

There is just one airline that flies from Ottawa to London Heathrow Airport direct and that is Air Canada. The best return deal found from Air Canada for the route is £488.

Weekly flights between Ottawa and London historically see delays in approximately 32% of cases, with the average delay over the past year being 141 minutes.

Typically, flights leaving in the evening tend to face fewer delays, whereas flights at night have historically encountered delays more often.

Statistically, Saturday is the day of the week with the fewest delays on this flight route, while Sunday has typically experienced more delays than other days.

Based on our data, Air Canada have experienced the fewest delays on this route in the past 12 months, with only about 32% of their flights encountering any delays.

Montreal (YUL) is the top choice – 67% of KAYAK users who clicked on one-stop flights from Ottawa to London Heathrow Airport picked an itinerary connecting there.

Flights via Montreal (YUL) offer the most affordable fares, with an average price of £497 for a return.

Consider flying via Montreal (YUL) for the shortest journey. The average one-way travel time for flights connecting there is 16h 25m.

If you prefer a quick connection, Montreal (YUL) often has the shortest stopovers from Ottawa to London Heathrow Airport, with an average time of 6h 43m.