Cheap Flights From Macdonald-Cartier Intl. (YOW) To Heathrow (LHR)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

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

The cheapest flights to Heathrow found within the past 7 days were CA $790 round trip and CA $598 one way. Prices and availability subject to change. Additional terms may apply.

Sun, May 24 - Fri, Jun 5
YOW
Ottawa
LHR
London
CA $790 Roundtrip, found 5 days ago
CA $790
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Sun, May 24 from Ottawa to London, returning Fri, Jun 5, priced at CA $790 found 5 days ago
Sun, May 24 - Sun, May 31
YOW
Ottawa
LHR
London
CA $795 Roundtrip, found 6 days ago
CA $795
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Sun, May 24 from Ottawa to London, returning Sun, May 31, priced at CA $795 found 6 days ago
Thu, May 28 - Tue, Jun 16
YOW
Ottawa
LHR
London
CA $798 Roundtrip, found 6 days ago
CA $798
Roundtrip
found 6 days ago
Select Air Canada flight, departing Thu, May 28 from Ottawa to London, returning Tue, Jun 16, priced at CA $798 found 6 days ago
Fri, Jun 5 - Tue, Jun 9
YOW
Ottawa
LHR
London
CA $799 Roundtrip, found 3 days ago
CA $799
Roundtrip
found 3 days ago
Select Air Canada flight, departing Fri, Jun 5 from Ottawa to London, returning Tue, Jun 9, priced at CA $799 found 3 days ago
Sun, May 24 - Sat, Jun 6
YOW
Ottawa
LHR
London
CA $802 Roundtrip, found 5 days ago
CA $802
Roundtrip
found 5 days ago
Select Air Canada flight, departing Sun, May 24 from Ottawa to London, returning Sat, Jun 6, priced at CA $802 found 5 days ago
Tue, Jun 2 - Tue, Jun 16
YOW
Ottawa
LHR
London
CA $831 Roundtrip, found 10 hours ago
CA $831
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Tue, Jun 2 from Ottawa to London, returning Tue, Jun 16, priced at CA $831 found 10 hours ago
Mon, Sep 28 - Fri, Oct 2
YOW
Ottawa
LHR
London
CA $912 Roundtrip, found 16 hours ago
CA $912
Roundtrip
found 16 hours ago
Select Air Canada flight, departing Mon, Sep 28 from Ottawa to London, returning Fri, Oct 2, priced at CA $912 found 16 hours ago
Sun, Mar 8 - Tue, Mar 17
YOW
Ottawa
LHR
London
CA $934 Roundtrip, found 5 days ago
CA $934
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Sun, Mar 8 from Ottawa to London, returning Tue, Mar 17, priced at CA $934 found 5 days ago
Thu, May 21 - Wed, May 27
YOW
Ottawa
LHR
London
CA $935 Roundtrip, found 4 hours ago
CA $935
Roundtrip
found 4 hours ago
Select Lufthansa flight, departing Thu, May 21 from Ottawa to London, returning Wed, May 27, priced at CA $935 found 4 hours ago
Thu, Oct 8 - Wed, Oct 14
YOW
Ottawa
LHR
London
CA $937 Roundtrip, found 6 days ago
CA $937
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Thu, Oct 8 from Ottawa to London, returning Wed, Oct 14, priced at CA $937 found 6 days ago

Heathrow flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
Numa London Chelsea Green

Numa London Chelsea Green

4 out of 5
Price was CA $2,035, price is now CA $1,652 per person
CA $1,652
per person
Apr 8 - Apr 14
found 1 day ago
Roundtrip non-stop flight included
Ottawa (YOW) to London (LHR)
The Zetter Marylebone

The Zetter Marylebone

4 out of 5
Price was CA $2,798, price is now CA $2,170 per person
CA $2,170
per person
Apr 8 - Apr 14
found 1 day ago
Roundtrip non-stop flight included
Ottawa (YOW) to London (LHR)
The Langham, London

The Langham, London

5 out of 5
Price was CA $2,374, price is now CA $1,896 per person
CA $1,896
per person
Apr 3 - Apr 6
found 1 day ago
Roundtrip flight included
Ottawa (YOW) to London (LHR)
Cleveland Residences Kensington

Cleveland Residences Kensington

3 out of 5
Price was CA $2,070, price is now CA $1,660 per person
CA $1,660
per person
Apr 8 - Apr 14
found 1 day ago
Roundtrip non-stop flight included
Ottawa (YOW) to London (LHR)
1 Hotel Mayfair

1 Hotel Mayfair

5 out of 5
Price was CA $2,676, price is now CA $2,174 per person
CA $2,174
per person
Apr 3 - Apr 6
found 1 day ago
Roundtrip flight included
Ottawa (YOW) to London (LHR)
Don't see what you're looking for?
See all available trips from Macdonald-Cartier Intl. to Heathrow
View all trips

Frequently asked questions

Are there direct flights from Ottawa International Airport to London Heathrow?
Unfortunately, there aren't any direct flights from Ottawa Intl. Airport to LHR. But we can direct you to airlines which offer flights with only one stopover. Consider Air Canada, Austrian Airlines and Lufthansa.
What airlines fly from YOW to Heathrow Airport?
When traveling from Macdonald-Cartier Intl. Airport (YOW) to LHR, you'll need to plan ahead — no direct flights are currently available. Booking well in advance should help you find the best price and route.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.