Ottawa to London
Ottawa to London is cheapest in January and February, both at 325 €. September, the most expensive month we measured, costs about 586 € more.
Ottawa to London is 5,346 km flown direct. Every fare we measured came from WS.
That comes from pricing 299 departure dates across 11 months. Every figure below is a fare we measured on the day shown, not a live quote. When we have nothing fresh to say about a route, its page stops existing.
What is a good price from Ottawa to London?
Anything at or below the quarter mark beats three in four of the 299 one-way fares we measured here. Above the median, wait or move the date.
seen 27 Sep 2026
How far ahead do the cheap fares sit?
When we measured, the cheapest quarter of fares sat between 52 and 116 days before departure, closer in than the market as a whole. The cheap fares were on nearer dates, not months away, when we looked.
a snapshot of where the cheap seats sat, seen 27 Sep 2026
Which day of the week is cheapest?
On average, Monday departures came out lowest and Saturday highest, a spread of about 33 €. The day matters less than the month here: pick the month first, then the day.
Is another London airport cheaper from Ottawa?
We price 2 airports for London from Ottawa. London Heathrow currently holds the cheapest floor of them.