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

  • Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Virgin Atlantic
Virgin Atlantic
KLM
Air France
Air France
Air France
Virgin Atlantic
Virgin Atlantic
Air France
KLM
Beautiful view of the beach with palm trees

Black Friday: Members save 30%+

Members save 30%+ on selected hotels until 4 Dec (property time) with our Black Friday deals. Stay by 15 Dec 2025.
Flight from London to Ottawa route information
Origin airport
Heathrow
Destination airport
Macdonald-Cartier Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, Austrian Airlines, Delta, KLM, LOT-Polish Airlines, Lufthansa, Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic
Return price
AU$964
Distance
5315 km

Your quick guide to flights from London to Ottawa

Pick up great flights from London to Ottawa

With Expedia, you have your pick of flights a day with 20 airlines covering flights from London to Ottawa. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from London to Ottawa that take around hours.

Find cheap flights from London to Ottawa

From the great flight deals with prices currently ranging from AU$964 to AU$1,046, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from London to Ottawa around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Ottawa is normally in December.

Reasons to book your flight from London to Ottawa with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from London to Ottawa across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Ottawa right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

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 AU$964. 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.
London Airports

London

*Available to Expedia members.