Cheap flights from London Heathrow Airport to Ottawa from £242
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
17 Jun — 24 Jun1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Ottawa are usually found in May or February, booked 76 days in advance, depart on a Friday or Thursday and return on a Tuesday
Cheap flight deals from Heathrow to Ottawa
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Cheapest flights from Heathrow to Ottawa
Explore the most affordable flight options available from Heathrow to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 May 2026.
Wed 3/606:00
LHR
-
YOW
2 stops16h 11m
Austrian Airlines
Fri 12/620:05
YOW
-
LHR
1 stop10h 45m
Austrian Airlines
Deal found 17/5£373
Tue 2/619:30
LHR
-
YOW
2 stops29h 11m
Multiple Airlines
Wed 17/615:00
YOW
-
LHR
1 stop10h 30m
Multiple Airlines
Deal found 13/5£374
Wed 3/606:00
LHR
-
YOW
2 stops18h 41m
Austrian Airlines
Sun 21/620:05
YOW
-
LHR
1 stop10h 45m
Austrian Airlines
Deal found 13/5£377
Thu 8/1008:45
LHR
-
YOW
2 stops30h 50m
Air Canada
Thu 15/1018:55
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 17/5£377
Mon 15/608:40
LHR
-
YOW
2 stops31h 51m
Air Canada
Mon 22/608:50
YOW
-
LHR
1 stop31h 10m
Air Canada
Deal found 18/5£378
Wed 3/606:00
LHR
-
YOW
2 stops16h 11m
Multiple Airlines
Wed 17/621:05
YOW
-
LHR
Nonstop6h 30m
Multiple Airlines
Deal found 17/5£383
Fri 19/606:50
LHR
-
YOW
2 stops12h 08m
Air Canada
Mon 22/617:30
YOW
-
LHR
1 stop22h 30m
Air Canada
Deal found 17/5£383
Wed 10/612:40
LHR
-
YOW
1 stop11h 13m
Air Canada
Wed 17/621:05
YOW
-
LHR
Nonstop6h 30m
Air Canada
Deal found 13/5£384
Tue 2/612:40
LHR
-
YOW
1 stop11h 13m
Air Canada
Tue 16/615:00
YOW
-
LHR
1 stop10h 30m
Air Canada
Deal found 15/5£386
Mon 5/1012:40
LHR
-
YOW
1 stop11h 00m
Air Canada
Mon 12/1018:55
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 18/5£386
Best flights from Heathrow to Ottawa
Discover carefully curated flight deals from Heathrow to Ottawa that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 May 2026.
Fri 12/609:30
LHR
-
YOW
1 stop17h 41m
Air Canada
Mon 15/618:55
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 17/5£413
Fri 5/607:30
LHR
-
YOW
2 stops16h 18m
United Airlines
Sun 14/612:00
YOW
-
LHR
2 stops13h 55m
United Airlines
Deal found 15/5£438
Tue 1/906:30
LHR
-
YOW
2 stops13h 30m
Multiple Airlines
Mon 7/917:10
YOW
-
LHR
1 stop18h 25m
Multiple Airlines
Deal found 16/5£515
Sun 28/606:00
LHR
-
YOW
2 stops16h 15m
SWISS
Sun 5/714:35
YOW
-
LHR
2 stops12h 20m
SWISS
Deal found 14/5£837
Mon 29/607:30
LHR
-
YOW
2 stops21h 24m
United Airlines
Mon 6/715:10
YOW
-
LHR
1 stop24h 30m
United Airlines
Deal found 15/5£521
Sat 27/616:40
LHR
-
YOW
1 stop12h 14m
United Airlines
Sat 4/715:10
YOW
-
LHR
2 stops14h 30m
United Airlines
Deal found 13/5£546
Sun 5/707:30
LHR
-
YOW
2 stops19h 05m
United Airlines
Sun 19/706:05
YOW
-
LHR
2 stops19h 50m
United Airlines
Deal found 17/5£604
Mon 6/709:30
LHR
-
YOW
2 stops17h 35m
United Airlines
Wed 15/710:25
YOW
-
LHR
2 stops14h 30m
United Airlines
Deal found 13/5£613
Thu 4/606:30
LHR
-
YOW
2 stops13h 30m
Multiple Airlines
Sat 13/617:10
YOW
-
LHR
1 stop9h 45m
Multiple Airlines
Deal found 15/5£845
Sat 8/809:30
LHR
-
YOW
2 stops17h 05m
United Airlines
Sat 22/814:52
YOW
-
LHR
2 stops14h 03m
United Airlines
Deal found 15/5£637
Direct flights from Heathrow to Ottawa
Explore direct flight options from Heathrow to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 May 2026.
Wed 10/614:10
LHR
-
YOW
Nonstop7h 10m
Air Canada
Wed 17/621:05
YOW
-
LHR
Nonstop6h 30m
Air Canada
Deal found 13/5£384
Thu 8/1009:30
LHR
-
YOW
Nonstop7h 55m
Air Canada
Thu 15/1018:55
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 17/5£386
Mon 15/609:30
LHR
-
YOW
Nonstop7h 55m
Air Canada
Mon 22/618:55
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 18/5£386
Sat 13/614:10
LHR
-
YOW
Nonstop7h 10m
Air Canada
Sat 20/621:05
YOW
-
LHR
Nonstop6h 30m
Air Canada
Deal found 16/5£387
Thu 4/609:30
LHR
-
YOW
Nonstop7h 55m
Air Canada
Wed 17/621:05
YOW
-
LHR
Nonstop6h 30m
Air Canada
Deal found 17/5£411
Thu 4/609:30
LHR
-
YOW
Nonstop7h 55m
Air Canada
Mon 15/618:55
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 15/5£416
Thu 17/909:30
LHR
-
YOW
Nonstop7h 55m
Lufthansa
Mon 21/918:55
YOW
-
LHR
Nonstop6h 35m
Lufthansa
Deal found 14/5£416
Mon 8/609:30
LHR
-
YOW
Nonstop7h 10m
Air Canada
Mon 15/618:55
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 13/5£419
Thu 18/609:30
LHR
-
YOW
Nonstop7h 55m
Air Canada
Sat 27/621:05
YOW
-
LHR
Nonstop6h 30m
Air Canada
Deal found 13/5£470
Thu 18/609:30
LHR
-
YOW
Nonstop7h 55m
Air Canada
Thu 25/618:55
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 18/5£471
Thu 4/609:30
LHR
-
YOW
Nonstop7h 55m
Air Canada
Sat 4/721:05
YOW
-
LHR
Nonstop6h 30m
Air Canada
Deal found 13/5£474
Last-minute flights from Heathrow to Ottawa
Discover last-minute flight deals from Heathrow to Ottawa. Data last updated 18 May 2026 and is based on user searches.
Sat 23/512:15
LHR
-
YOW
1 stop11h 33m
Air Canada
Wed 27/521:00
YOW
-
LHR
Nonstop6h 35m
Air Canada
Deal found 16/5£662
Sat 23/514:10
LHR
-
YOW
Nonstop7h 55m
Lufthansa
Wed 27/521:00
YOW
-
LHR
Nonstop6h 35m
Lufthansa
Deal found 17/5£845
Mon 25/512:40
LHR
-
YOW
1 stop12h 01m
Air Canada
Sun 31/514:40
YOW
-
LHR
1 stop10h 50m
Air Canada
Deal found 16/5£689
Wed 27/507:40
LHR
-
YOW
2 stops14h 55m
Multiple Airlines
Wed 27/521:00
YOW
-
LHR
Nonstop6h 35m
Multiple Airlines
Deal found 15/5£876
One-way flights from Heathrow to Ottawa
Search for one-way flight options from Heathrow to Ottawa. Find affordable one-way fares based on user searches. Data last updated 18 May 2026.
Mon 22/621:10
LHR
-
YOW
3 stops32h 10m
Multiple Airlines
Deal found 16/5£242
Wed 17/615:50
LHR
-
YOW
3 stops30h 45m
Multiple Airlines
Deal found 14/5£243
Mon 15/621:10
LHR
-
YOW
2 stops32h 10m
Multiple Airlines
Deal found 13/5£268
Tue 16/615:50
LHR
-
YOW
2 stops37h 30m
Multiple Airlines
Deal found 13/5£278
Thu 28/521:10
LHR
-
YOW
2 stops25h 25m
Multiple Airlines
Deal found 14/5£288
Mon 7/920:50
LHR
-
YOW
2 stops40h 00m
Multiple Airlines
Deal found 16/5£297
Find flight deals from Heathrow to Ottawa
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 May 2026.
Customise your flight search to find flights from Heathrow to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 May 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Ottawa that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Fri 12/6
09:30-22:11
1 stop17h 41m
Ottawa
Mon 15/6
18:55-06:30
Nonstop6h 35m
£413
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Fri 5/6
07:30-18:48
2 stops16h 18m
Ottawa
Sun 14/6
12:00-06:55
2 stops13h 55m
£438
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Tue 1/9
06:30-15:00
2 stops13h 30m
Ottawa
Mon 7/9
17:10-16:35
1 stop18h 25m
£515
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Mon 29/6
07:30-23:54
2 stops21h 24m
Ottawa
Mon 6/7
15:10-20:40
1 stop24h 30m
£521
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Sat 27/6
16:40-23:54
1 stop12h 14m
Ottawa
Sat 4/7
15:10-10:40
2 stops14h 30m
£546
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Sun 5/7
07:30-21:35
2 stops19h 05m
Ottawa
Sun 19/7
06:05-06:55
2 stops19h 50m
£604
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Mon 6/7
09:30-22:05
2 stops17h 35m
Ottawa
Wed 15/7
10:25-05:55
2 stops14h 30m
£613
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Sat 8/8
09:30-21:35
2 stops17h 05m
Ottawa
Sat 22/8
14:52-09:55
2 stops14h 03m
£637
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Sun 28/6
06:00-17:15
2 stops16h 15m
Ottawa
Sun 5/7
14:35-07:55
2 stops12h 20m
£837
Fastest return journey
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Thu 4/6
06:30-15:00
2 stops13h 30m
Ottawa
Sat 13/6
17:10-07:55
1 stop9h 45m
£845
Flights are sorted by cheapest return flights first.
Deals found on 13/5
Showing 1-10 of 18 resultsSorted by cheapest first
1
2
Best time to book a flight from Heathrow to Ottawa
Have a flexible travel schedule? Discover the best time to fly to Ottawa from Heathrow with our price prediction graph.
LHR-YOW
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Ottawa
Prices
Delays
More
How far ahead should I book a flight from London Heathrow Airport to Ottawa?
Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Ottawa. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from London Heathrow Airport to Ottawa?
Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of £492). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £703). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from LHR to YOW?
Find hourly flight availability from Heathrow to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 May 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Ottawa as you normally would.
How much does it cost for a return flight from London Heathrow Airport to Ottawa?
How often are flights from London to Ottawa delayed?
About 11% of weekly flights between London and Ottawa have experienced delays in the past year, with the average delay time being 254 minutes.
What is the most punctual flight time for London to Ottawa flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Ottawa flights?
Over the past year, Air Canada have had the lowest number of delays on this route, with just 11% of flights being delayed.
What’s the top stopover airport for flights from London Heathrow Airport to Ottawa?
Share of one-stop return flights from London Heathrow Airport to Ottawa chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Paris (CDG) – chosen by Cheapflights users on 50% of one-stop itineraries from London Heathrow Airport to Ottawa on Cheapflights.
What’s the cheapest stopover airport for flights from London Heathrow Airport to Ottawa?
Average return fare for one-stop flights from London Heathrow Airport to Ottawa, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Halifax (YHZ) is the most affordable one-stop option, with an average return flight price of £530.
What’s the fastest stopover option from London Heathrow Airport to Ottawa?
Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Ottawa, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Montreal (YUL) have the shortest average one-way travel time for one-stop routes: 9h 59m.
Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Ottawa?
Average stopover duration for one-stop one-way flights from London Heathrow Airport to Ottawa, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Washington, D.C. (IAD) offer the fastest connection on this route, with an average stopover time of 1h 13m.
Reviews of airlines servicing Ottawa
Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated 18 May 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Ottawa, such as Air France,Virgin Atlantic, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
The aircraft is so old that you don’t even notice you are in a business class.
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Ottawa from London Heathrow?
Ottawa (YOW), located 6.6 mi from the city center, is the airport you fly into when you book flights from London Heathrow to Ottawa. 4 airlines have flights to Ottawa from London Heathrow on a regular basis. Booking flights from London Heathrow to Ottawa should not be difficult; the airport handles an average of 3 inbound flights from London Heathrow per day.
How long is the flight from London Heathrow Airport to Ottawa?
Departing from London Heathrow Airport to Ottawa will take you 16h 18m. The distance between London Heathrow Airport and Ottawa is about 3320 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from London Heathrow Airport to Ottawa round-trip?
Our cheapest airline available from London Heathrow Airport to Ottawa is Air Canada. Our recent data shows that you can find tickets from as low as £374 on this airline. Additional options worth looking into are Air France and Virgin Atlantic, starting at £377 and £379 round-trip. Users have found that Air Canada is 34% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from London Heathrow Airport to Ottawa one-way?
For one-way options, check prices for Virgin Atlantic. According to our data, you can fly for as low as £293. Users have also found prices from £518 and £577 on Lufthansa and Air Canada, respectively.
What are the most reliable airlines from London Heathrow Airport to Ottawa?
Before booking your flight to Ottawa from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Aegean Airlines (92%), Air Canada (87%), Austrian Airlines( 87%).
What are the cheapest flights from London Heathrow Airport to Ottawa?
Looking at all options, your cheapest flight can be booked for £361. While the most popular route (London Heathrow - Ottawa) can be booked for £366 on average, our data indicates £602 when flying from London Heathrow Airport to Ottawa.
Can I find deals for business class flights from Heathrow to Ottawa?
Yes. Cheapflights offers flight deals from Heathrow to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London Heathrow Airport to Ottawa?
Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of £492). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £703). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Discover the top 4 airlines that operate flights from Heathrow to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 May 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Heathrow to Ottawa?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ottawa from Heathrow today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Ottawa?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Ottawa for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Heathrow to Ottawa with no change fees?
Certainly. Search results for flights to Ottawa from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Heathrow to Ottawa become cheaper?
Not ready to book yet? You can track prices for flights from Heathrow to Ottawa on Cheapflights with our Price Alert feature and get notified when better prices are available.
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