S$1,264 Cheap Flights from London to Ottawa

View S$1,264 flight on Thu, 4 Sep, 2025Opens 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 S$1,264 for one-way flights and S$839 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Tue, 2 Sep - Mon, 29 Sep
LHR
London
YOW
Ottawa
S$839 Return, found 5 days ago
S$839
Return
found 5 days ago
Select KLM flight, departing Tue, 2 Sep from London to Ottawa, returning Mon, 29 Sep, priced at S$839 found 5 days ago
Air France
Tue, 2 Sep - Mon, 29 Sep
LHR
London
YOW
Ottawa
S$876 Return, found 5 days ago
S$876
Return
found 5 days ago
Select Air France flight, departing Tue, 2 Sep from London to Ottawa, returning Mon, 29 Sep, priced at S$876 found 5 days ago
Virgin Atlantic
Tue, 2 Sep - Mon, 29 Sep
LHR
London
YOW
Ottawa
S$899 Return, found 5 days ago
S$899
Return
found 5 days ago
Select Virgin Atlantic flight, departing Tue, 2 Sep from London to Ottawa, returning Mon, 29 Sep, priced at S$899 found 5 days ago
KLM
Tue, 2 Sep - Mon, 29 Sep
LHR
London
YOW
Ottawa
S$910 Return, found 5 days ago
S$910
Return
found 5 days ago
Select KLM flight, departing Tue, 2 Sep from London to Ottawa, returning Mon, 29 Sep, priced at S$910 found 5 days ago
Air France
Tue, 2 Sep - Mon, 29 Sep
LHR
London
YOW
Ottawa
S$913 Return, found 5 days ago
S$913
Return
found 5 days ago
Select Air France flight, departing Tue, 2 Sep from London to Ottawa, returning Mon, 29 Sep, priced at S$913 found 5 days ago
Air Canada
Thu, 4 Sep - Wed, 1 Oct
LHR
London
YOW
Ottawa
S$938 Return, found 5 days ago
S$938
Return
found 5 days ago
Select Air Canada flight, departing Thu, 4 Sep from London to Ottawa, returning Wed, 1 Oct, priced at S$938 found 5 days ago
Air Canada
Thu, 4 Sep - Wed, 1 Oct
LHR
London
YOW
Ottawa
S$947 Return, found 5 days ago
S$947
Return
found 5 days ago
Select Air Canada flight, departing Thu, 4 Sep from London to Ottawa, returning Wed, 1 Oct, priced at S$947 found 5 days ago
Air France
Tue, 2 Sep - Mon, 29 Sep
LHR
London
YOW
Ottawa
S$948 Return, found 5 days ago
S$948
Return
found 5 days ago
Select Air France flight, departing Tue, 2 Sep from London to Ottawa, returning Mon, 29 Sep, priced at S$948 found 5 days ago
KLM
Tue, 2 Sep - Mon, 29 Sep
LHR
London
YOW
Ottawa
S$950 Return, found 5 days ago
S$950
Return
found 5 days ago
Select KLM flight, departing Tue, 2 Sep from London to Ottawa, returning Mon, 29 Sep, priced at S$950 found 5 days ago
Lufthansa
Thu, 4 Sep - Wed, 1 Oct
LHR
London
YOW
Ottawa
S$971 Return, found 5 days ago
S$971
Return
found 5 days ago
Select Lufthansa flight, departing Thu, 4 Sep from London to Ottawa, returning Wed, 1 Oct, priced at S$971 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 S$666 - S$1,396 per traveller.

Graph displaying average flight prices per month

London to Ottawa route information
Origin airport
Heathrow
Destination airport
Macdonald-Cartier Intl.
Return price
S$838
Distance
5315 km
Average flight time
7 hours 20 mins

Perfect flights from London to Ottawa

Your Journey from London to Ottawa

Start your unforgettable journey with Expedia. Our broad selection of flights from London to Ottawa caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including KLM, Air France, Virgin Atlantic, Air Canada, Lufthansa, LOT-Polish Airlines, Aer Lingus. Our selection of flights from Heathrow to Macdonald-Cartier Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with London to Ottawa Flights

Experience the joy of finding cheap flights from Heathrow to Macdonald-Cartier Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$1,264 and roundtrip prices from S$839*.
 

Pre-Flight Essentials

Ensure a smooth journey from London to Ottawa with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Ottawa

Picture yourself stepping off the plane in Ottawa and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your London to Ottawa Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from London to Ottawa.
 

Beyond the Flight – Exploring Ottawa

With Expedia, your adventure extends beyond the flight. Explore Ottawa at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from London to Ottawa with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from London to Ottawa with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

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 S$839. 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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