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

View AU$687 flight on Sun, 25 May 2025Opens in a new window

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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.

Virgin Atlantic
Mon., 24 Feb. - Thu., 20 Mar.
YOW
Ottawa
LHR
London
AU$1,110 Return, found 2 days ago
AU$1,110
Return
found 2 days ago
Select Virgin Atlantic flight, departing Mon., 24 Feb. from Ottawa to London, returning Thu., 20 Mar., priced at AU$1,110 found 2 days ago
Virgin Atlantic
Sun., 23 Feb. - Thu., 20 Mar.
YOW
Ottawa
LHR
London
AU$1,367 Return, found 2 days ago
AU$1,367
Return
found 2 days ago
Select Virgin Atlantic flight, departing Sun., 23 Feb. from Ottawa to London, returning Thu., 20 Mar., priced at AU$1,367 found 2 days ago
Air Canada
Tue., 25 Feb. - Tue., 18 Mar.
YOW
Ottawa
LHR
London
AU$1,392 Return, found 2 days ago
AU$1,392
Return
found 2 days ago
Select Air Canada flight, departing Tue., 25 Feb. from Ottawa to London, returning Tue., 18 Mar., priced at AU$1,392 found 2 days ago
Virgin Atlantic
Mon., 24 Feb. - Mon., 17 Mar.
YOW
Ottawa
LHR
London
AU$1,400 Return, found 2 days ago
AU$1,400
Return
found 2 days ago
Select Virgin Atlantic flight, departing Mon., 24 Feb. from Ottawa to London, returning Mon., 17 Mar., priced at AU$1,400 found 2 days ago
Air Canada
Sun., 23 Feb. - Tue., 18 Mar.
YOW
Ottawa
LHR
London
AU$1,409 Return, found 2 days ago
AU$1,409
Return
found 2 days ago
Select Air Canada flight, departing Sun., 23 Feb. from Ottawa to London, returning Tue., 18 Mar., priced at AU$1,409 found 2 days ago
Air Canada
Mon., 24 Feb. - Wed., 19 Mar.
YOW
Ottawa
LHR
London
AU$1,422 Return, found 2 days ago
AU$1,422
Return
found 2 days ago
Select Air Canada flight, departing Mon., 24 Feb. from Ottawa to London, returning Wed., 19 Mar., priced at AU$1,422 found 2 days ago
Air Canada
Mon., 31 Mar. - Mon., 7 Apr.
YOW
Ottawa
LHR
London
AU$1,426 Return, found 3 days ago
AU$1,426
Return
found 3 days ago
Select Air Canada flight, departing Mon., 31 Mar. from Ottawa to London, returning Mon., 7 Apr., priced at AU$1,426 found 3 days ago
Lufthansa
Mon., 31 Mar. - Mon., 7 Apr.
YOW
Ottawa
LHR
London
AU$1,456 Return, found 3 days ago
AU$1,456
Return
found 3 days ago
Select Lufthansa flight, departing Mon., 31 Mar. from Ottawa to London, returning Mon., 7 Apr., priced at AU$1,456 found 3 days ago
United
Mon., 24 Feb. - Wed., 19 Mar.
YOW
Ottawa
LHR
London
AU$1,467 Return, found 2 days ago
AU$1,467
Return
found 2 days ago
Select United flight, departing Mon., 24 Feb. from Ottawa to London, returning Wed., 19 Mar., priced at AU$1,467 found 2 days ago
Swiss International Air Lines
Fri., 9 May - Fri., 16 May
YOW
Ottawa
LHR
London
AU$1,823 Return, found 3 days ago
AU$1,823
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Fri., 9 May from Ottawa to London, returning Fri., 16 May, priced at AU$1,823 found 3 days ago

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$1,110. 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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