$546 Cheap Flights from London (LHR) to Ottawa (YOW)

View $546 flight on Tue, Oct 7, 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 $546 for one-way flights and $591 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Virgin Atlantic
Fri, Oct 24 - Thu, Nov 6
LHR
London
YOW
Ottawa
$591 Roundtrip, found 6 days ago
$591
Roundtrip
found 6 days ago
Select Virgin Atlantic flight, departing Fri, Oct 24 from London to Ottawa, returning Thu, Nov 6, priced at $591 found 6 days ago
Virgin Atlantic
Fri, Oct 24 - Sun, Nov 9
LHR
London
YOW
Ottawa
$600 Roundtrip, found 6 days ago
$600
Roundtrip
found 6 days ago
Select Virgin Atlantic flight, departing Fri, Oct 24 from London to Ottawa, returning Sun, Nov 9, priced at $600 found 6 days ago
Virgin Atlantic
Wed, Oct 22 - Thu, Nov 6
LHR
London
YOW
Ottawa
$604 Roundtrip, found 6 days ago
$604
Roundtrip
found 6 days ago
Select Virgin Atlantic flight, departing Wed, Oct 22 from London to Ottawa, returning Thu, Nov 6, priced at $604 found 6 days ago
Virgin Atlantic
Wed, Oct 1 - Sun, Oct 12
LHR
London
YOW
Ottawa
$612 Roundtrip, found 6 days ago
$612
Roundtrip
found 6 days ago
Select Virgin Atlantic flight, departing Wed, Oct 1 from London to Ottawa, returning Sun, Oct 12, priced at $612 found 6 days ago
Virgin Atlantic
Wed, Oct 1 - Mon, Oct 13
LHR
London
YOW
Ottawa
$614 Roundtrip, found 6 days ago
$614
Roundtrip
found 6 days ago
Select Virgin Atlantic flight, departing Wed, Oct 1 from London to Ottawa, returning Mon, Oct 13, priced at $614 found 6 days ago
Virgin Atlantic
Sun, Oct 5 - Sun, Oct 12
LHR
London
YOW
Ottawa
$625 Roundtrip, found 6 days ago
$625
Roundtrip
found 6 days ago
Select Virgin Atlantic flight, departing Sun, Oct 5 from London to Ottawa, returning Sun, Oct 12, priced at $625 found 6 days ago
Air France
Thu, Oct 2 - Mon, Oct 13
LHR
London
YOW
Ottawa
$636 Roundtrip, found 6 days ago
$636
Roundtrip
found 6 days ago
Select Air France flight, departing Thu, Oct 2 from London to Ottawa, returning Mon, Oct 13, priced at $636 found 6 days ago
Air Canada
Sat, Sep 6 - Sat, Sep 13
LHR
London
YOW
Ottawa
$675 Roundtrip, found 6 days ago
$675
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sat, Sep 6 from London to Ottawa, returning Sat, Sep 13, priced at $675 found 6 days ago
Austrian Airlines
Thu, Oct 16 - Sun, Oct 19
LHR
London
YOW
Ottawa
$738 Roundtrip, found 1 day ago
$738
Roundtrip
found 1 day ago
Select Austrian Airlines flight, departing Thu, Oct 16 from London to Ottawa, returning Sun, Oct 19, priced at $738 found 1 day ago
Brussels Airlines
Wed, May 13 - Mon, May 18
LHR
London
YOW
Ottawa
$783 Roundtrip, found 2 days ago
$783
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Wed, May 13 from London to Ottawa, returning Mon, May 18, priced at $783 found 2 days ago

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

November is typically the cheapest month to fly

From $517 - $1,082 per traveler.

Graph displaying average flight prices per month

Alternative airports near Ottawa

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Macdonald-Cartier Intl. YOW. Cheapest option available. Average driving time to city center is 15 minutes. Flights from $760
YOW
Macdonald-Cartier Intl.
Cheapest
Average driving time to city center15 min
Flights from $760
Flights from London (LHR) to Ottawa (YOW)
Origin airport
Heathrow
Destination airport
Macdonald-Cartier Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, Austrian Airlines, Brussels Airlines, KLM, LOT-Polish Airlines, Lufthansa, Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic
Roundtrip price
$591
Distance
3322 mi
Average flight time
7 hours 20 mins

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 October. 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 $546 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.

 

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW) cost?
Find affordable return tickets from Heathrow Airport (LHR) to Macdonald-Cartier Intl. Airport (YOW) starting from $878. Snag a seat and get ready for takeoff. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Air Canada flight leaving LHR on August 14 2025 and touching down at YOW. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from LHR to YOW?
The cheapest flights from LHR to YOW are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from LHR to YOW?
Currently, the cheapest carrier operating one-way flights from LHR to YOW is Lufthansa. You can take off on this route from $1796. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from LHR on September 17 2025. Prices were last updated on July 23 2025 and have not changed since.
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.

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*Available to One Key members.