Cheap flights from London Heathrow Airport to Ottawa from £351
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
11 Dec — 18 Dec1
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 June, booked 76 days in advance, depart on a Friday or Thursday and return on a Wednesday
Cheap flight deals from Heathrow to Ottawa
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One-way
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 11 November 2026.
Mon 9/1119:25 -
2 stops26h 55m
Mon 16/1109:55 -
2 stops16h 15m
Deal found 9/11£562
Thu 12/1109:00 -
2 stops14h 45m
Thu 19/1120:30 -
2 stops19h 30m
Deal found 11/11£573
Thu 3/1220:35 -
2 stops32h 05m
Mon 7/1212:50 -
2 stops25h 40m
Deal found 9/11£577
Fri 20/1107:30 -
2 stops36h 37m
Sun 22/1106:00 -
2 stops19h 40m
Deal found 8/11£578
Wed 11/1109:00 -
2 stops14h 45m
Mon 16/1109:55 -
2 stops16h 15m
Deal found 9/11£579
Sat 21/1111:10 -
Nonstop7h 55m
Sun 13/1209:55 -
2 stops16h 15m
Deal found 8/11£583
Wed 2/1209:00 -
2 stops14h 45m
Sun 6/1219:35 -
2 stops20h 25m
Deal found 10/11£584
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 11 November 2026.
Thu 3/1207:30 -
2 stops19h 26m
Sat 12/1206:00 -
2 stops19h 40m
Deal found 8/11£585
Sat 21/1116:10 -
1 stop12h 30m
Wed 25/1117:10 -
1 stop18h 25m
Deal found 6/11£639
Mon 23/1107:30 -
2 stops19h 26m
Fri 8/106:00 -
2 stops19h 40m
Deal found 8/11£585
Thu 28/116:10 -
1 stop12h 30m
Thu 11/217:10 -
1 stop9h 45m
Deal found 8/11£646
Thu 24/1212:05 -
2 stops30h 06m
Tue 5/115:10 -
2 stops34h 30m
Deal found 8/11£610
Mon 7/1216:10 -
1 stop12h 30m
Mon 14/1217:10 -
1 stop18h 25m
Deal found 9/11£670
Sun 6/1216:20 -
2 stops25h 51m
Sun 13/1206:00 -
1 stop10h 20m
Deal found 8/11£610
Tue 15/1216:20 -
2 stops25h 51m
Tue 5/115:10 -
1 stop25h 10m
Deal found 7/11£611
Tue 15/1212:50 -
1 stop14h 06m
Fri 8/106:00 -
2 stops19h 40m
Deal found 7/11£611
Wed 9/1216:20 -
2 stops25h 51m
Wed 16/1206:00 -
1 stop10h 20m
Deal found 10/11£612
Thu 28/116:20 -
2 stops25h 51m
Thu 11/214:00 -
1 stop15h 50m
Deal found 9/11£623
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 11 November 2026.
Thu 19/1113:25 -
Nonstop7h 55m
Mon 30/1118:50 -
Nonstop6h 40m
Deal found 8/11£653
Thu 3/1213:25 -
Nonstop7h 55m
Sat 12/1218:50 -
Nonstop6h 40m
Deal found 8/11£654
Sat 14/1111:10 -
Nonstop7h 55m
Sat 21/1118:50 -
Nonstop6h 40m
Deal found 10/11£656
Sat 14/1111:10 -
Nonstop7h 55m
Sat 21/1118:50 -
Nonstop6h 40m
Deal found 9/11£657
Sat 5/1211:10 -
Nonstop7h 55m
Sat 12/1218:50 -
Nonstop6h 40m
Deal found 7/11£657
Sat 5/1211:10 -
Nonstop7h 55m
Sat 12/1218:50 -
Nonstop6h 40m
Deal found 7/11£661
Mon 23/1111:10 -
Nonstop7h 55m
Fri 8/109:15 -
Nonstop6h 45m
Deal found 8/11£662
Sat 14/1111:10 -
Nonstop7h 55m
Thu 19/1121:40 -
Nonstop6h 40m
Deal found 9/11£674
Mon 23/1111:10 -
Nonstop7h 55m
Sat 12/1218:50 -
Nonstop6h 40m
Deal found 7/11£676
Thu 26/1113:25 -
Nonstop7h 55m
Mon 30/1118:50 -
Nonstop6h 40m
Deal found 9/11£679
Sat 14/1111:10 -
Nonstop7h 55m
Fri 15/109:15 -
Nonstop6h 45m
Deal found 9/11£681
Sat 21/1111:10 -
Nonstop7h 55m
Sat 12/1218:50 -
Nonstop6h 40m
Deal found 7/11£681
Last-minute flights from Heathrow to Ottawa
Discover last-minute flight deals from Heathrow to Ottawa. Data last updated 11 November 2026 and is based on user searches.
Mon 9/1119:25 -
2 stops26h 55m
Mon 16/1109:55 -
2 stops16h 15m
Deal found 9/11£562
Wed 11/1109:00 -
2 stops14h 45m
Mon 16/1109:55 -
2 stops16h 15m
Deal found 9/11£579
Thu 12/1109:00 -
2 stops14h 45m
Thu 19/1120:30 -
2 stops19h 30m
Deal found 11/11£573
Fri 20/1107:30 -
2 stops36h 37m
Sun 22/1106:00 -
2 stops19h 40m
Deal found 8/11£578
Sat 21/1111:10 -
Nonstop7h 55m
Sun 13/1209:55 -
2 stops16h 15m
Deal found 8/11£583
Wed 2/1209:00 -
2 stops14h 45m
Sun 6/1219:35 -
2 stops20h 25m
Deal found 10/11£584
Thu 3/1220:35 -
2 stops32h 05m
Mon 7/1212:50 -
2 stops25h 40m
Deal found 9/11£577
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 11 November 2026.
Sun 6/1215:15 -
3 stops52h 17m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/11£351
Mon 14/1209:55 -
3 stops33h 37m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 8/11£370
Sat 12/1209:55 -
2 stops38h 22m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 9/11£378
Wed 13/114:50 -
2 stops36h 24m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/11£383
Tue 12/112:15 -
2 stops30h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/11£395
Tue 15/1209:55 -
3 stops38h 22m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/11£398
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 11 November 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 7,457,451 searches. Data last updated 11 November 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 London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Mon 14/12
09:55-14:32
3 stops33h 37m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£370
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Thu 26/11
14:50-00:37
3 stops38h 47m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£480
Fastest return journey
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Thu 24/12
18:00-23:55
1 stop10h 55m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£522
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Tue 22/12
06:00-14:48
3 stops37h 48m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£525
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Thu 17/12
16:30-23:40
2 stops36h 10m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£526
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Sun 27/12
20:05-14:48
2 stops47h 43m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£538
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Thu 31/12
07:30-14:47
2 stops36h 17m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£544
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Wed 25/11
07:50-19:45
2 stops16h 55m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£554
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Wed 25/11
14:50-14:30
1 stop28h 40m
Ottawa
Wed 31/12
00:00-06:00
Nonstop0h 00m
£560
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Thu 3/12
07:30-21:56
2 stops19h 26m
Ottawa
Sat 12/12
06:00-06:40
2 stops19h 40m
£585
Flights are sorted by cheapest return flights first.
Deals found on 8/11
Showing 1-10 of 20 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 £387). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £681). 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 11 November 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?
Airfare is below average for this route at the moment.
London Heathrow Airport to Ottawa flights typically cost between £595 and £667 in January.The cheapest return price found within the last 5 days was £545 on Multiple Airlines (19 Jan–22 Jan).
How often are flights from London to Ottawa delayed?
About 10% of weekly flights between London and Ottawa have experienced delays in the past year, with the average delay time being 210 minutes.
What is the most punctual flight time for London to Ottawa flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday 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 10% 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 65% 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.
Paris (CDG) is the most affordable one-stop option, with an average return flight price of £593.
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: 10h 10m.
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 Newark (EWR) offer the fastest connection on this route, with an average stopover time of 1h 56m.
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 11 November 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Ottawa, such as KLM,Air France, andVirgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Having to wait 2 hours in line just to get a boarding pass with no checked baggage is unacceptable for a modern airport. Receiving only 2 out of 9 boarding passes and then having to wait another 2 hours for the remaining ones is a disaster.
Having to wait 2 hours in line just to get a boarding pass with no checked baggage is unacceptable for a modern airport. Receiving only 2 out of 9 boarding passes and then having to wait another 2 hours for the remaining ones is a disaster.
Having to wait 2 hours in line just to get a boarding pass with no checked baggage is unacceptable for a modern airport. Receiving only 2 out of 9 boarding passes and then having to wait another 2 hours for the remaining ones is a disaster.
Having to wait 2 hours in line just to get a boarding pass with no checked baggage is unacceptable for a modern airport. Receiving only 2 out of 9 boarding passes and then having to wait another 2 hours for the remaining ones is a disaster.
Having to wait 2 hours in line just to get a boarding pass with no checked baggage is unacceptable for a modern airport. Receiving only 2 out of 9 boarding passes and then having to wait another 2 hours for the remaining ones is a disaster.
Having to wait 2 hours in line just to get a boarding pass with no checked baggage is unacceptable for a modern airport. Receiving only 2 out of 9 boarding passes and then having to wait another 2 hours for the remaining ones is a disaster.
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. 5 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 1 inbound flight 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 19h 26m. The distance between London Heathrow Airport and Ottawa is about 3320 mi.
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 France. Our recent data shows that you can find tickets from as low as £364 on this airline. Additional options worth looking into are Air Canada and Lufthansa, starting at £372 and £388 round-trip. Users have found that Air France is 34% cheaper than the other options available to this destination.
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: Air Canada (79%), Austrian Airlines (79%), SriLankan Airlines( 79%).
What are the cheapest flights from London Heathrow Airport to Ottawa?
Looking at all options, your cheapest flight can be booked for £517. While the most popular route (London Heathrow - Ottawa) can be booked for £545 on average, our data indicates £663 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 £387). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £681). 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.
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 11 November 2026.
Explore flights to Ottawa departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 11 November 2026.
Discover the top 5 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 7,457,451 searches. Data last updated 11 November 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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