Cheap flights from London Heathrow to Ottawa

Q: How much are flights normally?

£ 521. If you see flights from London Heathrow to Ottawa for less than this, you've found a good deal.

Q: When is the best time to book cheap flights?

27 weeks. If you want cheap flights from London Heathrow to Ottawa, this is the best time to book.

Q: What are the cheapest airlines?

Air France, KLM, Virgin Atlantic. These airlines usually offer the cheapest flights from London Heathrow to Ottawa.

Q: Can I fly direct to Ottawa?

Air Canada, Lufthansa. You can fly non-stop from London Heathrow to Ottawa with these airlines.

Q: What airlines fly indirectly?

British Airways, Virgin Atlantic, Air France, Air Canada, KLM. These airlines fly from London Heathrow to Ottawa, but you’ll have at least one layover.

Q: When is high season?

August. This is the most expensive time to fly to Ottawa. If this is when you want to go, book your flight from London Heathrow in advance.

Q: When is the cheapest time to fly?

November. Flights from London Heathrow to Ottawa are usually cheaper at this time of year.

Q: How long is the flight?

7 hrs 20 mins. This is the shortest flight time from London Heathrow to Ottawa.

Q: How long should I stay in Ottawa?

14 days. Most people spend this amount of time in Ottawa.

from as little as £378

5 nights in Ottawa, departing London Heathrow on 21 / Sep / 2025 with Virgin Atlantic (price found 31 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from London Heathrow to Ottawa

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The London Heathrow / Ottawa route

All 5350 km of it

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Ottawa flight facts

What you need to know

How much are flights normally?

£ 521

If you see flights from London Heathrow to Ottawa for less than this, you've found a good deal.

When is the best time to book cheap flights?

27 weeks

If you want cheap flights from London Heathrow to Ottawa, this is the best time to book.

What are the cheapest airlines?

Air France
KLM
Virgin Atlantic

These airlines usually offer the cheapest flights from London Heathrow to Ottawa.

Can I fly direct to Ottawa?

Air Canada
Lufthansa

You can fly non-stop from London Heathrow to Ottawa with these airlines.

What airlines fly indirectly?

British Airways
Virgin Atlantic
Air France
Air Canada
KLM

These airlines fly from London Heathrow to Ottawa, but you’ll have at least one layover.

When is high season?

August

This is the most expensive time to fly to Ottawa. If this is when you want to go, book your flight from London Heathrow in advance.

When is the cheapest time to fly?

November

Flights from London Heathrow to Ottawa are usually cheaper at this time of year.

How long is the flight?

7 hrs 20 mins

This is the shortest flight time from London Heathrow to Ottawa.

How long should I stay in Ottawa?

14 days

Most people spend this amount of time in Ottawa.

Alternative flights from the UK to Ottawa

Check out prices for other routes

London to Ottawa

from £378 pp

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Manchester to Ottawa

from £456 pp

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Edinburgh to Ottawa

from £453 pp

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Birmingham to Ottawa

from £479 pp

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London City Airport to Ottawa

from £710 pp

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London Gatwick to Ottawa

from £1,176 pp

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Alternative flights from London Heathrow to Ottawa

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Today alone, Netflights has searched over 3,001 flights. 21 / Sep / 2025 is currently the lowest priced day of the year to fly the London Heathrow/Ottawa route. There are around 191 flights on any given week from the UK to Ottawa and the cheapest month to fly right now is September.

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

Currency

Canadian dollar

Language

English

French

Timezone

5 hrs behind GMT

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 21 / Sep / 2025 currently has the cheapest flights. At the moment, there are seven 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 10 hrs 40 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.