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

View AU$547 flight on Mon, 26 Jan. 2026Opens in a new window

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

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

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.

Air Canada
Sat, 11 Oct. - Mon, 20 Oct.
YOW
Ottawa
LHR
London
AU$1,076 Return, found 2 days ago
AU$1,076
Return
found 2 days ago
Select Air Canada flight, departing Sat, 11 Oct. from Ottawa to London, returning Mon, 20 Oct., priced at AU$1,076 found 2 days ago
Air Canada
Sat, 11 Oct. - Mon, 20 Oct.
YOW
Ottawa
LHR
London
AU$1,076 Return, found 2 days ago
AU$1,076
Return
found 2 days ago
Select Air Canada flight, departing Sat, 11 Oct. from Ottawa to London, returning Mon, 20 Oct., priced at AU$1,076 found 2 days ago
Air Canada
Sat, 11 Oct. - Mon, 20 Oct.
YOW
Ottawa
LHR
London
AU$1,086 Return, found 2 days ago
AU$1,086
Return
found 2 days ago
Select Air Canada flight, departing Sat, 11 Oct. from Ottawa to London, returning Mon, 20 Oct., priced at AU$1,086 found 2 days ago
Air Canada
Fri, 3 Oct. - Sun, 12 Oct.
YOW
Ottawa
LHR
London
AU$1,086 Return, found 3 days ago
AU$1,086
Return
found 3 days ago
Select Air Canada flight, departing Fri, 3 Oct. from Ottawa to London, returning Sun, 12 Oct., priced at AU$1,086 found 3 days ago
Air Canada
Tue, 7 Oct. - Tue, 21 Oct.
YOW
Ottawa
LHR
London
AU$1,096 Return, found 2 days ago
AU$1,096
Return
found 2 days ago
Select Air Canada flight, departing Tue, 7 Oct. from Ottawa to London, returning Tue, 21 Oct., priced at AU$1,096 found 2 days ago
Air Canada
Fri, 3 Oct. - Sun, 12 Oct.
YOW
Ottawa
LHR
London
AU$1,096 Return, found 3 days ago
AU$1,096
Return
found 3 days ago
Select Air Canada flight, departing Fri, 3 Oct. from Ottawa to London, returning Sun, 12 Oct., priced at AU$1,096 found 3 days ago
Virgin Atlantic
Sun, 16 Nov. - Sun, 14 Dec.
YOW
Ottawa
LHR
London
AU$1,110 Return, found 3 days ago
AU$1,110
Return
found 3 days ago
Select Virgin Atlantic flight, departing Sun, 16 Nov. from Ottawa to London, returning Sun, 14 Dec., priced at AU$1,110 found 3 days ago
Air France
Sun, 16 Nov. - Sun, 14 Dec.
YOW
Ottawa
LHR
London
AU$1,150 Return, found 3 days ago
AU$1,150
Return
found 3 days ago
Select Air France flight, departing Sun, 16 Nov. from Ottawa to London, returning Sun, 14 Dec., priced at AU$1,150 found 3 days ago
Lufthansa
Tue, 7 Oct. - Tue, 21 Oct.
YOW
Ottawa
LHR
London
AU$1,404 Return, found 2 days ago
AU$1,404
Return
found 2 days ago
Select Lufthansa flight, departing Tue, 7 Oct. from Ottawa to London, returning Tue, 21 Oct., priced at AU$1,404 found 2 days ago
United
Tue, 7 Oct. - Tue, 21 Oct.
YOW
Ottawa
LHR
London
AU$1,454 Return, found 2 days ago
AU$1,454
Return
found 2 days ago
Select United flight, departing Tue, 7 Oct. from Ottawa to London, returning Tue, 21 Oct., priced at AU$1,454 found 2 days ago

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

February is typically the cheapest month to fly

From AU$878 - AU$2,133 per traveller.

Graph displaying average flight prices per month

Flight from Ottawa to London route information
Origin airport
Macdonald-Cartier Intl.
Destination airport
Heathrow
Return price
AU$1,075
Distance
5315 km
Average flight time
6 hours 35 mins

Your quick guide to flights from Ottawa to London

Pick up great flights from Ottawa to London

With Expedia, you have your pick of 7 flights a day with 20 airlines covering flights from Ottawa to London. 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 Ottawa to London that take around 6 hours.

Find cheap flights from Ottawa to London

From the great flight deals with prices currently ranging from AU$1,076 to AU$1,454, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Ottawa to London 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 London is normally in October.

Reasons to book your flight from Ottawa to London 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 Ottawa to London 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 London 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 Ottawa International Airport to Heathrow Airport (LHR)?
Round-trip tickets from Ottawa Intl. Airport to London Heathrow start from AU$1,076. 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.

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