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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from London to Ottawa (LHR-YOW)

Prices were available within the past 7 days and start at $402 for one-way flights and $602 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, Nov 8 - Sun, Nov 9
LHR
London
YOW
Ottawa
$602 Roundtrip, found 3 days ago
$602
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sat, Nov 8 from London to Ottawa, returning Sun, Nov 9, priced at $602 found 3 days ago
Air Canada
Sat, Jan 17 - Sun, Jan 18
LHR
London
YOW
Ottawa
$611 Roundtrip, found 4 days ago
$611
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sat, Jan 17 from London to Ottawa, returning Sun, Jan 18, priced at $611 found 4 days ago
Virgin Atlantic
Thu, Dec 11 - Thu, Dec 25
LHR
London
YOW
Ottawa
$656 Roundtrip, found 2 days ago
$656
Roundtrip
found 2 days ago
Select Virgin Atlantic flight, departing Thu, Dec 11 from London to Ottawa, returning Thu, Dec 25, priced at $656 found 2 days ago
Virgin Atlantic
Wed, Dec 24 - Sun, Dec 28
LHR
London
YOW
Ottawa
$660 Roundtrip, found 5 days ago
$660
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Wed, Dec 24 from London to Ottawa, returning Sun, Dec 28, priced at $660 found 5 days ago
Virgin Atlantic
Wed, Jan 21 - Sun, Jan 25
LHR
London
YOW
Ottawa
$665 Roundtrip, found 3 days ago
$665
Roundtrip
found 3 days ago
Select Virgin Atlantic flight, departing Wed, Jan 21 from London to Ottawa, returning Sun, Jan 25, priced at $665 found 3 days ago
Virgin Atlantic
Thu, Nov 13 - Thu, Nov 20
LHR
London
YOW
Ottawa
$668 Roundtrip, found 5 days ago
$668
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Thu, Nov 13 from London to Ottawa, returning Thu, Nov 20, priced at $668 found 5 days ago
Virgin Atlantic
Tue, Dec 23 - Sun, Dec 28
LHR
London
YOW
Ottawa
$673 Roundtrip, found 5 days ago
$673
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Tue, Dec 23 from London to Ottawa, returning Sun, Dec 28, priced at $673 found 5 days ago
Lufthansa
Sun, Dec 7 - Wed, Jan 14
LHR
London
YOW
Ottawa
$674 Roundtrip, found 6 days ago
$674
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Sun, Dec 7 from London to Ottawa, returning Wed, Jan 14, priced at $674 found 6 days ago
Swiss International Air Lines
Sun, Dec 7 - Wed, Jan 14
LHR
London
YOW
Ottawa
$675 Roundtrip, found 6 days ago
$675
Roundtrip
found 6 days ago
Select Swiss International Air Lines flight, departing Sun, Dec 7 from London to Ottawa, returning Wed, Jan 14, priced at $675 found 6 days ago
Austrian Airlines
Mon, Nov 10 - Wed, Jan 7
LHR
London
YOW
Ottawa
$687 Roundtrip, found 12 hours ago
$687
Roundtrip
found 12 hours ago
Select Austrian Airlines flight, departing Mon, Nov 10 from London to Ottawa, returning Wed, Jan 7, priced at $687 found 12 hours ago

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

September is typically the cheapest month to fly

From $516 - $1,113 per traveler.

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW) cost?
Snag a cheap one-way flight from $402 or cheap return flight from $602 from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW)?
The cheapest month to fly from LHR to YOW is November, when there's less demand. Off-peak months are often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW)?
To find the cheapest airline that'll fly you from LHR to YOW, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW)?
Direct flights from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from LHR to YOW?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from LHR to YOW?
With 82% of journeys typically arriving on time, Lufthansa has the best on-time performance for nonstop flights from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW). To keep track of your flight status and receive notifications if anything changes, head to the Expedia App.
What is the best time to fly from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW)?
To arrive at Macdonald-Cartier Intl. Airport (YOW) on time, book a flight that takes off from Heathrow Airport (LHR) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW) last-minute?
Waiting until right before your break to book a ticket from LHR to YOW generally means paying more. While it's possible to find some last-minute deals, there's no guarantee. Allow some flexibility in your schedule for the best chance of landing a bargain.
Is it cheaper to book a LHR to YOW flight and hotel package?
Opting for a LHR to YOW flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our wide range of hotels and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW)?
Generally, it's possible to reschedule or cancel your LHR to YOW flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Book with confidence

London to Ottawa Flights

The cheapest times to fly from London to Ottawa

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Ottawa are during the month of November. You can find some of the cheapest flights from London to Ottawa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Ottawa

Sunday is one of the best days to book for cheap flights from London to Ottawa: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from London to Ottawa

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Ottawa in 2025. You can also book with separate airlines for your outbound and return journeys, from $402 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Ottawa flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Ottawa airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

London to Ottawa Flights

Explore a world of travel with Expedia

*Available to One Key members.