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Cheap Flights from Ottawa to London Heathrow

Travellers and cabin class

Compare Ottawa to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Ottawa to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Ottawa to London Heathrow? Find the lowest prices on one-way and return tickets right here.
London.SAR 1,264 per passenger.Departing Tue, 1 Apr.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Tue, 1 Apr, arriving in London Heathrow.Price includes taxes and charges.From SAR 1,264, select.
London.SAR 1,268 per passenger.Departing Mon, 24 Mar.One-way flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departs from Ottawa International on Mon, 24 Mar, arriving in London Heathrow.Price includes taxes and charges.From SAR 1,268, select.
London.SAR 1,382 per passenger.Departing Wed, 14 May.One-way flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departs from Ottawa International on Wed, 14 May, arriving in London Heathrow.Price includes taxes and charges.From SAR 1,382, select.
London.SAR 1,527 per passenger.Departing Mon, 9 Jun.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Mon, 9 Jun, arriving in London Heathrow.Price includes taxes and charges.From SAR 1,527, select.
London.SAR 1,584 per passenger.Departing Wed, 26 Feb.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Wed, 26 Feb, arriving in London Heathrow.Price includes taxes and charges.From SAR 1,584, select.
London.SAR 1,755 per passenger.Departing Mon, 20 Oct.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Mon, 20 Oct, arriving in London Heathrow.Price includes taxes and charges.From SAR 1,755, select.
London.SAR 1,938 per passenger.Departing Wed, 24 Sep.One-way flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departs from Ottawa International on Wed, 24 Sep, arriving in London Heathrow.Price includes taxes and charges.From SAR 1,938, select.
London.SAR 2,022 per passenger.Departing Sat, 5 Jul.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Sat, 5 Jul, arriving in London Heathrow.Price includes taxes and charges.From SAR 2,022, select.

Find the cheapest month to fly from Ottawa to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ottawa to London Heathrow flights are currently cheapest in April.
Feb
from SAR 1,584
Mar
from SAR 1,268
Apr
from SAR 1,264
May
from SAR 1,382
Jun
from SAR 1,527
Jul
from SAR 2,022
Aug
from SAR 2,060
Sep
from SAR 1,938
Oct
from SAR 1,755
Nov
from SAR 2,050
Dec
Find prices
Jan
Find prices

Direct flights from Ottawa to London Heathrow

Ottawa to London Heathrow: Alternative routes

Compare routes from Ottawa to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Ottawa to London: Flight information

The things to know before you go.
Cheapest flight foundSAR 1,264
Cheapest month to flyApril
Average flight time6 hrs, 35 mins
Most popular airlineAegean Airlines
Average flights per week32

Finding cheap flights from Ottawa to London Heathrow: Frequently asked questions

The best price we found for a return flight from Ottawa to London Heathrow is SAR 2,308. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
6 hours and 35 minutes is the average flight time from Ottawa to London Heathrow.
Aegean Airlines, TAP Air Portugal and Air Canada fly direct from Ottawa to London Heathrow.
As of February 2025, there are 64 flights per week flying from Ottawa to London Heathrow.
The cheapest month to fly from Ottawa to London Heathrow is usually February 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Ottawa to London Heathrow Airport on Thursday, 27 March 2025.
Yes – the average flight time is 6 hours and 35 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

How to find cheap flights to London Heathrow

Looking for cheap flights to London Heathrow? Here are a few tips on how to secure the best price and make your flight journey as smooth as possible.

  • Simply hit 'search'. We've compared hundreds of online travel agents along with all major airlines flying to London Heathrow to find the cheapest plane tickets. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to London Heathrow from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
  • Flex your dates to score the best fares for your London Heathrow flight. If your travel dates are flexible, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to London Heathrow.
  • Set up a Price Alert. You can easily track the price of your cheap flights to London Heathrow by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible London Heathrow flight deal.
  • Fly without stops. Only interested in direct flights? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights to London Heathrow available, these will appear in the results.
  • Find the cheapest Business class flights to London Heathrow. We scour the internet for the best Business, Premium Economy and First Class flight fares to London Heathrow, too. Check the difference in price as you search – you might just chance upon a last-minute low fare.
  • Include nearby airports in your search. Widen your search for London Heathrow flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.

    • Combine your flight to London Heathrow with hotels and car hire

    Once you've secured your cheap ticket to London Heathrow, discover the best prices and exclusive rates for hotels in London Heathrow. You can also compare hundreds of car hire companies in one go so that you get the best car rental price for your trip.

    Compare London Heathrow flight tickets with other destinations using the everywhere search

    Not entirely set on flying to London Heathrow yet? You can easily browse other destinations by searching flights to 'Everywhere' - this will allow you to find the cheapest place to travel from your departure point.


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Plan the rest of your trip from Ottawa to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.