Ottawa to London flights
The cheapest round trip we found from Ottawa to London is $1,516 (Dec 23 – Jan 2, 2027, 3 stops).
YOW to LON · Round trip · Economy · Prices per person in USD · Price found (2 days ago)
Cheapest found
Cheapest dates in the next 4 months
Round trip, per person-
Dec 23 – Jan 2, 2027 10 nights · leave Wed$1,516$1,516 Book
Porter Airlines Canada 3 stops · 8h 19m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in London
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Airport transfer to London
Fixed prices from LHR on KiwitaxiTo see transfer prices here, turn on partner content in .
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Plan the rest of your trip
London · Dec 23 – Jan 2, 2027- eSIM for United Kingdom Yesim · prepaid mobile data (opens Yesim in a new tab)
- Car rental in United Kingdom Economybookings · compare rental companies (opens Economybookings in a new tab)
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Flights to London from other cities
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Ottawa to London: questions
How much does a flight from Ottawa to London cost?
The cheapest round trip we have found right now is $1,516, leaving December 23 and returning January 2. Prices are per person, economy, in USD.
Which airports do Ottawa to London flights use?
Ottawa airports include Ottawa/Macdonald-Cartier International (YOW) and Gatineau (YND). London airports include London Heathrow (LHR), London City (LCY) and London Gatwick (LGW). The prices on this page cover every airport in both cities (YOW and LON are the city codes).
About this route
We track round-trip economy fares from Ottawa (Canada) to London (United Kingdom) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $1,516, departing December 23 and returning January 2. The cheapest month to fly in our data is December, from $1,516. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.