S$1,019 Cheap Flights from Ottawa to London

View S$1,019 flight on Wed, 16 Jul, 2025Opens in a new window

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

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Cheap Flights from Ottawa to London (YOW-LHR)

Prices were available within the past 7 days and start at S$1,019 for one-way flights and S$1,413 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Fri, 8 Aug - Fri, 15 Aug
XDS
Ottawa
LHR
London
S$1,413 Return, found 2 days ago
S$1,413
Return
found 2 days ago
Select KLM flight, departing Fri, 8 Aug from Ottawa to London, returning Fri, 15 Aug, priced at S$1,413 found 2 days ago
Air Canada
Fri, 8 Aug - Fri, 15 Aug
YOW
Ottawa
LHR
London
S$1,564 Return, found 2 days ago
S$1,564
Return
found 2 days ago
Select Air Canada flight, departing Fri, 8 Aug from Ottawa to London, returning Fri, 15 Aug, priced at S$1,564 found 2 days ago
Air Canada
Fri, 8 Aug - Fri, 15 Aug
YOW
Ottawa
LHR
London
S$1,573 Return, found 2 days ago
S$1,573
Return
found 2 days ago
Select Air Canada flight, departing Fri, 8 Aug from Ottawa to London, returning Fri, 15 Aug, priced at S$1,573 found 2 days ago
Air Canada
Fri, 8 Aug - Fri, 15 Aug
YOW
Ottawa
LHR
London
S$1,581 Return, found 2 days ago
S$1,581
Return
found 2 days ago
Select Air Canada flight, departing Fri, 8 Aug from Ottawa to London, returning Fri, 15 Aug, priced at S$1,581 found 2 days ago
United
Fri, 8 Aug - Fri, 15 Aug
YOW
Ottawa
LHR
London
S$1,585 Return, found 2 days ago
S$1,585
Return
found 2 days ago
Select United flight, departing Fri, 8 Aug from Ottawa to London, returning Fri, 15 Aug, priced at S$1,585 found 2 days ago
Air Canada
Fri, 8 Aug - Fri, 15 Aug
YOW
Ottawa
LHR
London
S$1,589 Return, found 2 days ago
S$1,589
Return
found 2 days ago
Select Air Canada flight, departing Fri, 8 Aug from Ottawa to London, returning Fri, 15 Aug, priced at S$1,589 found 2 days ago
Air Canada
Fri, 8 Aug - Fri, 15 Aug
YOW
Ottawa
LHR
London
S$1,600 Return, found 2 days ago
S$1,600
Return
found 2 days ago
Select Air Canada flight, departing Fri, 8 Aug from Ottawa to London, returning Fri, 15 Aug, priced at S$1,600 found 2 days ago
Swiss International Air Lines
Fri, 8 Aug - Fri, 15 Aug
YOW
Ottawa
LHR
London
S$1,606 Return, found 2 days ago
S$1,606
Return
found 2 days ago
Select Swiss International Air Lines flight, departing Fri, 8 Aug from Ottawa to London, returning Fri, 15 Aug, priced at S$1,606 found 2 days ago
Air Canada
Fri, 8 Aug - Fri, 15 Aug
YOW
Ottawa
LHR
London
S$1,609 Return, found 2 days ago
S$1,609
Return
found 2 days ago
Select Air Canada flight, departing Fri, 8 Aug from Ottawa to London, returning Fri, 15 Aug, priced at S$1,609 found 2 days ago
Lufthansa
Fri, 8 Aug - Fri, 15 Aug
YOW
Ottawa
LHR
London
S$1,613 Return, found 2 days ago
S$1,613
Return
found 2 days ago
Select Lufthansa flight, departing Fri, 8 Aug from Ottawa to London, returning Fri, 15 Aug, priced at S$1,613 found 2 days ago

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

February is typically the cheapest month to fly

From S$732 - S$1,773 per traveller.

Graph displaying average flight prices per month

Ottawa to London route information
Origin airport
Ottawa Train Station
Destination airport
Heathrow
Return price
S$1,413
Distance
5308 km
Average flight time
6 hours 35 mins

Perfect flights from Ottawa to London

Your Journey from Ottawa to London

Start your unforgettable journey with Expedia. Our broad selection of flights from Ottawa to London 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 Virgin Atlantic, KLM, Air Canada, Lufthansa, United, Swiss International Air Lines. Our selection of flights from Macdonald-Cartier Intl. to Heathrow 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 Ottawa to London Flights

Experience the joy of finding cheap flights from Macdonald-Cartier Intl. to Heathrow that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$1,019 and roundtrip prices from S$1,413*.
 

Pre-Flight Essentials

Ensure a smooth journey from Ottawa to London 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 London

Picture yourself stepping off the plane in London 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 Ottawa to London 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 Ottawa to London.
 

Beyond the Flight – Exploring London

With Expedia, your adventure extends beyond the flight. Explore London 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 Ottawa to London 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 Ottawa to London 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 Ottawa International Airport to Heathrow Airport (LHR)?
Round-trip tickets from Ottawa Intl. Airport to London Heathrow start from S$1,413. This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year --- book today to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from YOW to Heathrow Airport (LHR)?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from YOW to Heathrow 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 YOW to Heathrow Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Ottawa Intl. Airport to London Heathrow?
You'll have 5,400 kilometres to cover on the long-haul Ottawa to Hounslow route. Wear layers of comfortable clothes and consider taking earplugs and a sleep mask.
Which airlines fly direct from Macdonald-Cartier Intl. Airport (YOW) to Heathrow Airport?
If you want to fly straight from Ottawa Intl. Airport to LHR, you'll have to book a flight with one or more stops. Unfortunately, there aren't any airlines that fly directly between these airports.
Are Ottawa International Airport to LHR flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Ottawa International Airport to Heathrow Airport can be hit-or-miss. You may be able to score a great bargain, but you could also miss out entirely! If you'd prefer to play it safe and start your trip planning early on, Expedia compares flight deals up to a year in advance. Just keep in mind that not all airlines advertise their prices that far in advance. Our suggestion? Check back often as updates are made frequently.

Explore a world of travel with Expedia

*Available to Expedia members.