Cheap flights from London Heathrow to Ottawa

from as little as £404

17 nights in Ottawa, departing London Heathrow on 06 / Oct / 2025 with Virgin Atlantic (price found 31 hours ago)

Subject to availability, prices correct of the last 24 hours
Ottawa

The London Heathrow / Ottawa route

All 5350 km of it

Cheap flight deals for this route

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Ottawa flight facts

What you need to know

Alternative flights from the UK to Ottawa

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Ottawa

Today alone, Netflights has searched over 2,442 flights. 06 / Oct / 2025 is currently the lowest priced day of the year to fly the London Heathrow/Ottawa route. There are around 202 flights on any given week from the UK to Ottawa and the cheapest month to fly right now is October.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

-14 °C

AVG

6 °C

HIGHEST

26 °C

Rainfall (mm)
LOWEST

58 mm

AVG

73.7 mm

HIGHEST

86 mm

Key facts about Ottawa

How to get cheap flights from London Heathrow to Ottawa

Tips and advice from our flight experts

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.

Other popular destinations near Ottawa

Where other people are flying to

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