Cheap Flights from Ottawa (YOW) to London (LHR) from HK$5,099~

View HK$5,099 flight on Tue, 7 Oct 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at HK$5,099 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

February is typically the cheapest month to fly

From HK$4,490 - HK$10,905 per traveller.

Graph displaying average flight prices per month

Ottawa to London route information
Origin airport
Macdonald-Cartier Intl.
Destination airport
Heathrow
Distance
5315 km
Average flight time
6 hours 35 mins

Flights from Ottawa to London

Book cheap flights from Ottawa (YOW) to London (LHR) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Ottawa (YOW) to London (LHR) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Ottawa (YOW) to London (LHR) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your London flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in London and things to do in London for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to London more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to London is HK$5,099 now!

 

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 . 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 kilometers 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.

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