€543 Cheap Flights Ottawa to London (YOW-LHR)

View €543 flight on Sun, 27 Sept 2026Opens 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 €543 for one-way flights and €560 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Fri, 22 May - Fri, 29 May
YOW
Ottawa
LHR
London
€560 Return, found 2 days ago
€560
Return
found 2 days ago
Select Air Canada flight, departing Fri, 22 May from Ottawa to London, returning Fri, 29 May, priced at €560 found 2 days ago
Air Canada
Fri, 22 May - Fri, 29 May
YOW
Ottawa
LHR
London
€563 Return, found 2 days ago
€563
Return
found 2 days ago
Select Air Canada flight, departing Fri, 22 May from Ottawa to London, returning Fri, 29 May, priced at €563 found 2 days ago
Air Canada
Fri, 22 May - Fri, 29 May
YOW
Ottawa
LHR
London
€565 Return, found 2 days ago
€565
Return
found 2 days ago
Select Air Canada flight, departing Fri, 22 May from Ottawa to London, returning Fri, 29 May, priced at €565 found 2 days ago
Air Canada
Fri, 22 May - Fri, 29 May
YOW
Ottawa
LHR
London
€568 Return, found 2 days ago
€568
Return
found 2 days ago
Select Air Canada flight, departing Fri, 22 May from Ottawa to London, returning Fri, 29 May, priced at €568 found 2 days ago
Air Canada
Fri, 22 May - Fri, 29 May
YOW
Ottawa
LHR
London
€572 Return, found 2 days ago
€572
Return
found 2 days ago
Select Air Canada flight, departing Fri, 22 May from Ottawa to London, returning Fri, 29 May, priced at €572 found 2 days ago
Air Canada
Fri, 22 May - Fri, 29 May
YOW
Ottawa
LHR
London
€582 Return, found 2 days ago
€582
Return
found 2 days ago
Select Air Canada flight, departing Fri, 22 May from Ottawa to London, returning Fri, 29 May, priced at €582 found 2 days ago
Air Canada
Fri, 22 May - Fri, 29 May
YOW
Ottawa
LHR
London
€585 Return, found 2 days ago
€585
Return
found 2 days ago
Select Air Canada flight, departing Fri, 22 May from Ottawa to London, returning Fri, 29 May, priced at €585 found 2 days ago
Air Canada
Fri, 22 May - Fri, 29 May
YOW
Ottawa
LHR
London
€589 Return, found 2 days ago
€589
Return
found 2 days ago
Select Air Canada flight, departing Fri, 22 May from Ottawa to London, returning Fri, 29 May, priced at €589 found 2 days ago
Air Canada
Fri, 22 May - Fri, 29 May
YOW
Ottawa
LHR
London
€602 Return, found 2 days ago
€602
Return
found 2 days ago
Select Air Canada flight, departing Fri, 22 May from Ottawa to London, returning Fri, 29 May, priced at €602 found 2 days ago
Virgin Atlantic
Fri, 22 May - Fri, 29 May
YOW
Ottawa
LHR
London
€789 Return, found 2 days ago
€789
Return
found 2 days ago
Select Virgin Atlantic flight, departing Fri, 22 May from Ottawa to London, returning Fri, 29 May, priced at €789 found 2 days ago

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

May is typically the cheapest month to fly

From €521 - €1,315 per traveller.

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 €560. 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.

Travel information

Origin airport
Macdonald-Cartier Intl.
Destination airport
Heathrow
Return price
€560
Distance
5315 km
Average flight time
6 hours 35 mins

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