€551 Cheap Flights London to Ottawa (LHR-YOW)

View €551 flight on Tue, 12 May 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Ottawa International Airport (YOW)

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Cheap flights from London to Ottawa (LHR-YOW)

Prices were available within the past 7 days and start at €551 for one-way flights and €577 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Fri, 3 Oct - Tue, 14 Oct
LHR
London
YOW
Ottawa
€577 Return, found 2 days ago
€577
Return
found 2 days ago
Select Air Canada flight, departing Fri, 3 Oct from London to Ottawa, returning Tue, 14 Oct, priced at €577 found 2 days ago
Air Canada
Fri, 3 Oct - Tue, 14 Oct
LHR
London
YOW
Ottawa
€582 Return, found 2 days ago
€582
Return
found 2 days ago
Select Air Canada flight, departing Fri, 3 Oct from London to Ottawa, returning Tue, 14 Oct, priced at €582 found 2 days ago
Air Canada
Wed, 10 Sep - Wed, 17 Sep
LHR
London
YOW
Ottawa
€585 Return, found 4 days ago
€585
Return
found 4 days ago
Select Air Canada flight, departing Wed, 10 Sep from London to Ottawa, returning Wed, 17 Sep, priced at €585 found 4 days ago
Air Canada
Fri, 3 Oct - Tue, 14 Oct
LHR
London
YOW
Ottawa
€588 Return, found 2 days ago
€588
Return
found 2 days ago
Select Air Canada flight, departing Fri, 3 Oct from London to Ottawa, returning Tue, 14 Oct, priced at €588 found 2 days ago
Swiss International Air Lines
Thu, 28 Aug - Wed, 3 Sep
LHR
London
YOW
Ottawa
€594 Return, found 4 hours ago
€594
Return
found 4 hours ago
Select Swiss International Air Lines flight, departing Thu, 28 Aug from London to Ottawa, returning Wed, 3 Sep, priced at €594 found 4 hours ago
Swiss International Air Lines
Thu, 16 Oct - Mon, 20 Oct
LHR
London
YOW
Ottawa
€598 Return, found 5 days ago
€598
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Thu, 16 Oct from London to Ottawa, returning Mon, 20 Oct, priced at €598 found 5 days ago
Brussels Airlines
Thu, 28 Aug - Wed, 3 Sep
LHR
London
YOW
Ottawa
€600 Return, found 4 hours ago
€600
Return
found 4 hours ago
Select Brussels Airlines flight, departing Thu, 28 Aug from London to Ottawa, returning Wed, 3 Sep, priced at €600 found 4 hours ago
Air Canada
Mon, 25 Aug - Wed, 3 Sep
LHR
London
YOW
Ottawa
€602 Return, found 5 days ago
€602
Return
found 5 days ago
Select Air Canada flight, departing Mon, 25 Aug from London to Ottawa, returning Wed, 3 Sep, priced at €602 found 5 days ago
KLM
Fri, 3 Oct - Tue, 14 Oct
LHR
London
YOW
Ottawa
€605 Return, found 2 days ago
€605
Return
found 2 days ago
Select KLM flight, departing Fri, 3 Oct from London to Ottawa, returning Tue, 14 Oct, priced at €605 found 2 days ago
Air France
Mon, 22 Sep - Mon, 29 Sep
LHR
London
YOW
Ottawa
€617 Return, found 5 days ago
€617
Return
found 5 days ago
Select Air France flight, departing Mon, 22 Sep from London to Ottawa, returning Mon, 29 Sep, priced at €617 found 5 days ago

Find the cheapest month to fly from London (LHR) to Ottawa (YOW)

November is typically the cheapest month to fly

From €448 - €937 per traveller.

Graph displaying average flight prices per month

London to Ottawa route information
Origin airport
Heathrow
Destination airport
Macdonald-Cartier Intl.
Airlines serving
Aer Lingus, Air Canada, LOT-Polish Airlines, Lufthansa, Swiss International Air Lines, United
Return price
€576
Distance
5315 km
Average flight time
7 hours 20 mins

Perfect flights from London to Ottawa

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from London to Ottawa. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Heathrow to Macdonald-Cartier Intl. ticket options cater to your travel preferences, with incredible one-way fares from €551 and roundtrip prices from €577. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Macdonald-Cartier Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Ottawa.

Frequently asked questions

How much is a flight from London Heathrow to YOW?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip journey from Heathrow Airport to Macdonald-Cartier Intl. Airport (YOW) was €577. Cheap tickets don't stick around for long, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from LHR to Macdonald-Cartier Intl. Airport (YOW)?
When it comes to cancellation fees, each airline has its own set of terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from LHR to Ottawa Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Heathrow Airport to Ottawa Intl. Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW)?
With around 5,400 kilometres separating London Heathrow and YOW, your flight will be a long one. Pack wisely to make your time in the air comfortable. Simple things like an eye mask and some noise-cancelling headphones can make a big difference.
Which airlines fly direct from London Heathrow to YOW?
There are no direct flights, so you'll have to make at least one stop between Heathrow Airport and Ottawa International Airport. Take advantage of the layover time to stretch your legs and freshen up.
Are Heathrow Airport to Ottawa International Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up a fantastic last-minute deal from London Heathrow to Macdonald-Cartier Intl. Airport (YOW), but it can also be hit-or-miss. As many airlines release seats up to 12 months in advance, it's worth keeping an eye on fares early and being ready to pounce when you see a bargain. Expedia compares air carrier prices and updates flight deals frequently, so you can rest assured you're always seeing the latest offers.

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