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Cheap Flights from London Heathrow to Ottawa

Compare London Heathrow to Ottawa flight deals

Find the cheapest month or even day of the year to fly to Ottawa

Book the best Ottawa fare with no extra fees

Flight deals from London Heathrow to Ottawa

Looking for a cheap last-minute deal or the best return flight from London Heathrow to Ottawa? Find the lowest prices on one-way and return tickets right here.
Ottawa.R 7,308 per passenger.Departing Sun, 14 Sep.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from London Heathrow on Sun, 14 Sep, arriving in Ottawa International.Price includes taxes and charges.From R 7,308, select.
Ottawa.R 7,548 per passenger.Departing Wed, 12 Nov.One-way flight with Air France.Outbound indirect flight with Air France, departs from London Heathrow on Wed, 12 Nov, arriving in Ottawa International.Price includes taxes and charges.From R 7,548, select.
Ottawa.R 7,570 per passenger.Departing Thu, 23 Oct.One-way flight with KLM.Outbound indirect flight with KLM, departs from London Heathrow on Thu, 23 Oct, arriving in Ottawa International.Price includes taxes and charges.From R 7,570, select.
Ottawa.R 7,750 per passenger.Departing Wed, 3 Dec.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Wed, 3 Dec, arriving in Ottawa International.Price includes taxes and charges.From R 7,750, select.
Ottawa.R 8,241 per passenger.Departing Fri, 29 Aug.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from London Heathrow on Fri, 29 Aug, arriving in Ottawa International.Price includes taxes and charges.From R 8,241, select.
Ottawa.R 8,929 per passenger.Departing Wed, 15 Apr.One-way flight with Iberia.Outbound indirect flight with Iberia, departs from London Heathrow on Wed, 15 Apr, arriving in Ottawa International.Price includes taxes and charges.From R 8,929, select.
Ottawa.R 10,096 per passenger.Departing Wed, 28 Jan.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from London Heathrow on Wed, 28 Jan, arriving in Ottawa International.Price includes taxes and charges.From R 10,096, select.
Ottawa.R 10,711 per passenger.Departing Fri, 15 May.One-way flight with Aegean Airlines.Outbound indirect flight with Aegean Airlines, departs from London Heathrow on Fri, 15 May, arriving in Ottawa International.Price includes taxes and charges.From R 10,711, select.

Find the cheapest month to fly from London Heathrow to Ottawa

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Ottawa flights are currently cheapest in September.
Jul
from R 17,083
Aug
from R 8,241
Sep
from R 7,308
Oct
from R 7,570
Nov
from R 7,548
Dec
from R 7,750
Jan
from R 10,096
Feb
Find prices
Mar
from R 16,332
Apr
from R 8,929
May
from R 10,711
Jun
from R 13,962

Direct flights from London Heathrow to Ottawa

Alternative London Heathrow to Ottawa routes

Looking for the cheapest, fastest or easiest route from London Heathrow to Ottawa? You could fly into the following airports instead.

London to Ottawa: Flight information

The things to know before you go.
Cheapest flight foundR 7,308
Cheapest month to flySeptember
Average flight time7 hrs, 20 mins
Most popular airlineUnited
Average flights per week46

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

There are 2 airports in Ottawa: Ottawa International and Ottawa Gatineau.
The best price we found for a return flight from London Heathrow to Ottawa is R 7,291. 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.
7 hours and 20 minutes is the average flight time from London Heathrow to Ottawa.
United, Aegean Airlines and TAP Air Portugal fly direct from London Heathrow to Ottawa.
As of July 2025, there are 46 flights per week flying from London Heathrow to Ottawa.
The cheapest month to fly from London Heathrow to Ottawa is usually September.
If you're flying from London Heathrow Airport, the cheapest airport near Ottawa is Ottawa International – which is 11.2 km away from the centre of Ottawa. We've found flights into this airport from R 7,291.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Ottawa on Saturday, 20 September 2025.
Yes – the average flight time is 7 hours and 20 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 Ottawa 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 Ottawa is around 40 days in advance, so don’t leave your flight to the last minute.
In July, the average temperature is usually around 20°C. July is typically the warmest month in Ottawa, when it usually averages around 25°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -16°C. The rainiest month is June.
Currently, Air Canada and Lufthansa offer the cheapest flight tickets to Ottawa.

Travelling from London Heathrow Airport (LHR) to Ottawa: what you need to know

  • Book a direct flight from London Heathrow Airport to Ottawa and you'll be travelling for around 6 hours 35 minutes.

  • The timezone in Ottawa is UTC-4. The city is four hours behind London, where London Heathrow Airport is located.

  • London Heathrow Airport (LHR) to Ottawa/Macdonald-Cartier International Airport (YOW) is the most traveled route, with two departures a week to choose from. If you prefer starting your day later, the last flight from LHR to YOW is with Air Canada at 14:05. Go for the first departure with Air Canada at 12:40 if you want to fly out earlier.

  • Leave plenty of time to make your LHR to Ottawa flight. As a general rule, turn up two hours before international departures and an hour ahead for domestic flights.

  • Longer lines at security and check-in are more likely if you're travelling during high season, so give yourself a little extra breathing room. A good rule for peak times? Arrive up to four hours early for international flights and two hours for domestic departures.

  • You can book a direct London Heathrow Airport to Ottawa ticket. Start your trip at LHR and end it at Ottawa/Macdonald-Cartier International Airport (YOW).

  • Keep an eye out for deals with Air Canada. This airline operates direct flights from London Heathrow Airport to Ottawa.

  • A stopover is the perfect opportunity to break up your journey and maybe even tick a new city off your list. When searching for flight tickets from LHR to Ottawa, uncheck the 'Direct flights only' box to see where you can visit along the way. Some popular options include:

    • Pearson International Airport (YYZ)

    • Montreal-Pierre Elliott Trudeau International Airport (YUL)

    • Halifax Stanfield International Airport (YHZ)

  • Located around 26 kilometres from the centre of London, LHR can be reached in about 55 minutes by car (depending on traffic). The journey on public transport will take roughly 1 hour.

  • Booked an early flight from London Heathrow Airport to Ottawa? Avoid rushing to the airport (and catch some extra z's) by choosing one of these stays close to LHR:

  • 68.18% of flights that leave from London Heathrow Airport reach their destination on time.

How to find the cheapest flights from London Heathrow Airport (LHR) to Ottawa

  • R 7,308 is the lowest price we've found for a one-way London Heathrow Airport to Ottawa flight. A round-trip ticket right now is R 7,291. Depending on how early you book and the availability, these fares can change.

  • Book five months before you travel. Research on pricing trends suggests this is the ideal window for finding cheap flights from LHR to Ottawa.

  • September is the best month for nabbing an incredible deal on London Heathrow Airport to Ottawa tickets. If you need to travel at a different time of year, the 'Whole month' tool will give you the lowest prices for each month.

  • Cut down on the time spent looking for cheap flights from LHR to Ottawa by creating a Price Alert. You'll get an email or push notification on the app when a lower fare becomes available.

  • Find an affordable flight from London Heathrow Airport to Ottawa with the help of our filters. Select your preferred duration, departure time and airlines, then sort the results by 'Cheapest' to see the best deals.

Airports in Ottawa

Ottawa Gatineau Airport (YND)

  • Ottawa Gatineau Airport (YND) is around 24 kilometres from the centre of Ottawa. If you're grabbing a cab or a ride-share, the drive will take roughly 20 minutes.

  • Travelling to the centre by public transport takes around 1 hour 40 minutes.

  • Coming in late on a flight from London Heathrow Airport to Ottawa? Grab your luggage and go straight to the comfort of a nearby hotel. Two options close to YND are Meilleure Auberge and Lovely Room 4mins From Gatineau-Ottawa Airport.

  • Venture beyond Ottawa and check out places that don't make every travel guide with your own set of wheels. You can grab an Ottawa Gatineau Airport rental car from Hertz.

  • To lock in the best rate, reserve your vehicle from Ottawa Gatineau Airport a few weeks before your flight from LHR to Ottawa. Rates generally rise closer to your date of travel.

Ottawa/Macdonald-Cartier International Airport (YOW)

  • Ottawa/Macdonald-Cartier International Airport (YOW) is around 13 kilometres from central Ottawa. Once you've disembarked your flight from London Heathrow Airport to Ottawa, it'll take you around 20 minutes to get to the heart of the city in a ride-share or cab.

  • If you travel by public transport, the journey will take you 45 minutes or so.

  • After stepping off your LHR to Ottawa flight, tuck yourself in at a hotel close to YOW. These are some comfortable accommodation options that'll help you slip into relaxation mode:

  • Forget about inconvenient public transport schedules or slow-moving cab lines. Grab an Ottawa/Macdonald-Cartier International Airport rental car and take your trip in whatever direction you choose. Check out the availability and rates from Routes Car Rentals, Alamo and Budget.

  • Get the lowest price by booking your ride from YOW two weeks ahead of time. You can also expect to have a greater selection of vehicles.

  • Ottawa/Macdonald-Cartier International Airport can be found at 50 Airport Road.

Best time to go to Ottawa

  • Carefully consider your travel dates before locking in your flight from London Heathrow Airport to Ottawa. The city buzzes in peak season, but hotel rates are usually higher and attractions can be crowded. Visit Ottawa in the low season if you like a more relaxed vibe.

  • The warmest month in Ottawa is July, with temperatures ranging between 13ºC (55ºF) and 27ºC (81ºF). Book your London Heathrow Airport to Ottawa flight ticket then if that's your ideal forecast.

  • Search for cheap tickets from LHR to Ottawa in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between -19ºC (-2ºF) and -2ºC (28ºF) on average.

More about Ottawa

  • Once you've booked your flight from London Heathrow Airport to Ottawa, find a hotel that offers both comfort and a great location. Make one of these accommodation options your base for exploring Ottawa:

  • There are so many things to discover in this city it can be hard to figure out where to start. Rideau Canal, Parliament Hill and National Gallery of Canada are major attractions which should be on any good Ottawa itinerary.

Explore more of Canada

  • Toronto is just one of the many cities in Canada waiting to be discovered after you've experienced Ottawa. Around 354 kilometres away to the south-west, well-known attractions include CN Tower, Royal Ontario Museum and Go Tours Canada - Distillery District.

  • Around 153 kilometres east of Ottawa, Montreal is another favourite stop in Canada. No visit is complete without checking out Mount Royal Park, Montreal Botanical Garden and Saint Joseph's Oratory of Mount Royal.

Plan the rest of your trip from London to Ottawa

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