Cheap flights from London Heathrow Airport to Ottawa from C$ 558
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
16 Oct — 23 Oct1
Round-trip
1 adult
Economy
Round-trip
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 Monday or Friday and return on a Wednesday
Cheap flight deals from Heathrow to Ottawa
Enter your travel dates to find the best prices.
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Best
Direct
Last-minute
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 16 September 2026.
Mon 12/105:50 p.m. -
1 stop11h 30m
Fri 30/106:25 p.m. -
2 stops13h 40m
Deal found 16/9C$ 769
Wed 7/102:10 p.m. -
Nonstop7h 55m
Wed 14/109:00 p.m. -
Nonstop6h 35m
Deal found 15/9C$ 771
Wed 7/1012:40 p.m. -
1 stop11h 10m
Wed 14/109:00 p.m. -
Nonstop6h 35m
Deal found 15/9C$ 772
Sat 17/105:50 p.m. -
1 stop11h 30m
Tue 27/106:10 p.m. -
1 stop18h 25m
Deal found 14/9C$ 774
Fri 9/106:50 a.m. -
2 stops31h 21m
Sun 11/106:05 a.m. -
1 stop20h 10m
Deal found 15/9C$ 786
Fri 25/95:50 p.m. -
1 stop28h 45m
Fri 2/106:55 a.m. -
1 stop23h 15m
Deal found 15/9C$ 787
Sun 4/107:30 a.m. -
2 stops19h 05m
Fri 16/102:52 p.m. -
1 stop11h 03m
Deal found 11/9C$ 801
Tue 15/1210:10 a.m. -
2 stops19h 34m
Sat 9/15:10 p.m. -
1 stop9h 45m
Deal found 13/9C$ 812
Sun 13/1212:40 p.m. -
2 stops17h 04m
Thu 7/15:10 p.m. -
1 stop15h 35m
Deal found 13/9C$ 815
Best flights from Heathrow to Ottawa
Discover carefully curated flight deals from Heathrow to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 16 September 2026.
Mon 12/105:50 p.m. -
1 stop11h 30m
Fri 30/106:25 p.m. -
2 stops13h 40m
Deal found 15/9C$ 769
Wed 7/102:10 p.m. -
Nonstop7h 55m
Wed 14/109:00 p.m. -
Nonstop6h 35m
Deal found 15/9C$ 771
Mon 26/101:05 p.m. -
1 stop15h 39m
Wed 4/115:10 p.m. -
1 stop15h 35m
Deal found 11/9C$ 879
Mon 12/107:30 a.m. -
2 stops16h 25m
Mon 19/1010:35 a.m. -
2 stops17h 45m
Deal found 14/9C$ 953
Fri 16/105:50 p.m. -
1 stop11h 30m
Wed 21/105:10 p.m. -
1 stop9h 45m
Deal found 15/9C$ 900
Wed 14/104:40 p.m. -
2 stops21h 31m
Wed 21/106:00 a.m. -
3 stops19h 45m
Deal found 15/9C$ 957
Thu 11/211:45 a.m. -
2 stops17h 59m
Tue 23/25:10 p.m. -
1 stop12h 20m
Deal found 16/9C$ 1,018
Fri 6/116:30 a.m. -
2 stops13h 30m
Sun 15/115:10 p.m. -
1 stop15h 35m
Deal found 13/9C$ 1,043
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 16 September 2026.
Wed 7/102:10 p.m. -
Nonstop7h 55m
Wed 14/109:00 p.m. -
Nonstop6h 35m
Deal found 15/9C$ 771
Thu 15/109:30 a.m. -
Nonstop7h 55m
Thu 22/106:55 p.m. -
Nonstop6h 35m
Deal found 15/9C$ 952
Mon 12/109:30 a.m. -
Nonstop7h 55m
Mon 19/106:55 p.m. -
Nonstop6h 35m
Deal found 14/9C$ 953
Thu 15/109:30 a.m. -
Nonstop7h 55m
Thu 22/106:55 p.m. -
Nonstop6h 35m
Deal found 15/9C$ 989
Mon 12/109:30 a.m. -
Nonstop7h 55m
Mon 26/107:50 p.m. -
Nonstop6h 40m
Deal found 12/9C$ 991
Sat 10/102:10 p.m. -
Nonstop7h 55m
Sat 17/109:00 p.m. -
Nonstop6h 35m
Deal found 12/9C$ 1,013
Thu 29/101:25 p.m. -
Nonstop7h 55m
Thu 5/119:40 p.m. -
Nonstop6h 40m
Deal found 14/9C$ 1,163
Mon 26/1011:10 a.m. -
Nonstop7h 55m
Sat 7/116:50 p.m. -
Nonstop6h 40m
Deal found 15/9C$ 1,169
Last-minute flights from Heathrow to Ottawa
Discover last-minute flight deals from Heathrow to Ottawa. Data last updated 16 September 2026 and is based on user searches.
Fri 25/95:50 p.m. -
1 stop28h 45m
Fri 2/106:55 a.m. -
1 stop23h 15m
Deal found 15/9C$ 787
Sat 3/109:30 a.m. -
1 stop9h 28m
Fri 9/106:01 p.m. -
1 stop21h 39m
Deal found 13/9C$ 815
Sun 4/107:30 a.m. -
2 stops19h 05m
Fri 16/102:52 p.m. -
1 stop11h 03m
Deal found 11/9C$ 801
Wed 7/102:10 p.m. -
Nonstop7h 55m
Wed 14/109:00 p.m. -
Nonstop6h 35m
Deal found 15/9C$ 771
Wed 7/1012:40 p.m. -
1 stop11h 10m
Wed 14/109:00 p.m. -
Nonstop6h 35m
Deal found 15/9C$ 772
Fri 9/106:50 a.m. -
2 stops31h 21m
Sun 11/106:05 a.m. -
1 stop20h 10m
Deal found 15/9C$ 786
Mon 12/105:50 p.m. -
1 stop11h 30m
Fri 30/106:25 p.m. -
2 stops13h 40m
Deal found 16/9C$ 769
Sat 17/105:50 p.m. -
1 stop11h 30m
Tue 27/106:10 p.m. -
1 stop18h 25m
Deal found 14/9C$ 774
Sat 17/105:50 p.m. -
1 stop11h 30m
Tue 27/106:10 p.m. -
2 stops15h 40m
Deal found 14/9C$ 818
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 16 September 2026.
Sun 8/113:15 p.m. -
2 stops37h 46m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 558
Wed 18/118:45 p.m. -
3 stops32h 16m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 15/9C$ 590
Wed 25/112:50 p.m. -
1 stop28h 40m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 15/9C$ 594
Fri 23/102:10 p.m. -
1 stop20h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 595
Tue 10/112:50 p.m. -
1 stop38h 11m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 13/9C$ 605
Mon 30/119:55 a.m. -
3 stops56h 17m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 15/9C$ 608
Tue 27/102:50 p.m. -
1 stop38h 10m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 12/9C$ 612
Tue 3/112:50 p.m. -
1 stop38h 11m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 15/9C$ 614
Sun 8/112:50 p.m. -
1 stop38h 11m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 615
Mon 2/112:50 p.m. -
1 stop38h 11m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 15/9C$ 616
Tue 24/116:20 a.m. -
2 stops22h 41m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 13/9C$ 618
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 16 September 2026.
Customize 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 16 September 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 round-trip
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Wed 25/11
2:50 p.m.-12:01 a.m.
1 stop38h 11m
Ottawa
Wed 31/12
12:00 a.m.-6:00 a.m.
Nonstop0h 00m
C$ 608
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Fri 22/1
3:15 p.m.-12:01 a.m.
2 stops37h 46m
Ottawa
Wed 31/12
12:00 a.m.-6:00 a.m.
Nonstop0h 00m
C$ 615
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Tue 24/11
6:20 a.m.-12:01 a.m.
2 stops22h 41m
Ottawa
Wed 31/12
12:00 a.m.-6:00 a.m.
Nonstop0h 00m
C$ 618
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Wed 25/11
7:25 p.m.-12:01 a.m.
2 stops33h 36m
Ottawa
Wed 31/12
12:00 a.m.-6:00 a.m.
Nonstop0h 00m
C$ 620
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Mon 11/1
12:15 p.m.-7:59 a.m.
2 stops24h 44m
Ottawa
Wed 31/12
12:00 a.m.-6:00 a.m.
Nonstop0h 00m
C$ 682
Quickest round-trip
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Wed 11/11
8:55 a.m.-3:00 p.m.
1 stop11h 05m
Ottawa
Wed 31/12
12:00 a.m.-6:00 a.m.
Nonstop0h 00m
C$ 696
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Fri 16/10
8:40 a.m.-12:20 a.m.
2 stops20h 40m
Ottawa
Wed 31/12
12:00 a.m.-6:00 a.m.
Nonstop0h 00m
C$ 701
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Sat 14/11
7:20 p.m.-3:00 p.m.
1 stop24h 40m
Ottawa
Wed 31/12
12:00 a.m.-6:00 a.m.
Nonstop0h 00m
C$ 715
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Sat 7/11
4:10 p.m.-12:44 a.m.
1 stop13h 34m
Ottawa
Wed 31/12
12:00 a.m.-6:00 a.m.
Nonstop0h 00m
C$ 725
LondonOttawa
LHR London Heathrow - YOW Ottawa
LHRYOW
London Heathrow
Mon 11/1
1:05 p.m.-12:44 a.m.
1 stop16h 39m
Ottawa
Wed 31/12
12:00 a.m.-6:00 a.m.
Nonstop0h 00m
C$ 737
Flights are sorted by cheapest round-trip flights first.
Deals found on 13/9
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 round-trip 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?
The price you pay for your flight from London Heathrow Airport to Ottawa may vary depending on when you book. For the best chance of a lower fare, look to book 75 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 C$ 740). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of C$ 1,318). 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 16 September 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 to fly round-trip 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 C$ 772 and C$ 1,043 in October.The cheapest round-trip price found within the last 5 days was C$ 769 on KLM (12 Oct-30 Oct).
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 219 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?
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 has had the lowest number of delays on this route, with just 11% of flights being delayed.
What’s the top layover airport for flights from London Heathrow Airport to Ottawa?
Share of one-stop round-trip flights from London Heathrow Airport to Ottawa chosen by Cheapflights users in the past 12 months, using the same layover each way.
Paris (CDG) – chosen by Cheapflights users on 83% of one-stop itineraries from London Heathrow Airport to Ottawa on Cheapflights.
What’s the cheapest layover airport for flights from London Heathrow Airport to Ottawa?
Average round-trip fare for 1-stop flights from London Heathrow Airport to Ottawa, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Toronto (YYZ) is the most affordable 1-stop option, with an average round-trip price of C$ 857.
What’s the fastest layover option from London Heathrow Airport to Ottawa?
Shortest average travel time for 1-stop one-way flights from London Heathrow Airport to Ottawa, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Paris (CDG) have the shortest average one-way travel time for 1-stop routes: 11h 13m.
Which airport typically offers the quickest layover for flights from London Heathrow Airport to Ottawa?
Average layover duration for 1-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 Paris (CDG) offer the fastest connection on this route, with an average layover time of 1h 31m.
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 16 September 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Ottawa, such as Air Canada and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
The fires impacted our trip. We sat in the plane for an hour with no air conditioning. We were a total of 5-hour delay but missed our connection. The staff tried to keep us aware of important information
The fires impacted our trip. We sat in the plane for an hour with no air conditioning. We were a total of 5-hour delay but missed our connection. The staff tried to keep us aware of important information
The fires impacted our trip. We sat in the plane for an hour with no air conditioning. We were a total of 5-hour delay but missed our connection. The staff tried to keep us aware of important information
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?
Located just 10.6 km from the city centre, Ottawa is the airport most travellers will use when flying to Ottawa from London Heathrow. Booking flights from London Heathrow to Ottawa (YOW) should be relatively easy as there is 1 daily inbound flight from London Heathrow from 2 different airlines.
How long is the flight from London Heathrow Airport to Ottawa?
There are many flights that can get you from London Heathrow Airport to Ottawa in 7h 55m. Fly via KLM or Lufthansa to get the fastest option. The distance from London Heathrow Airport to Ottawa is about 5343 km. This flight may include one or multiple stops.
What are the cheapest airlines flying from London Heathrow Airport to Ottawa round-trip?
Lufthansa, at C$ 737, was found to be the cheapest airline from London Heathrow Airport to Ottawa. An alternate airline flying to your destination would be Air Canada. Users have found that Lufthansa is 28% cheaper than the other options available to this destination.
What are the most reliable airlines from London Heathrow Airport to Ottawa?
The top 3 most reliable airlines when flying from London Heathrow Airport to Ottawa are Aegean Airlines (88%), Air Canada (85%) and Austrian Airlines (85%).
Can I find deals for flights from Heathrow to Ottawa that include hotel bookings?
Yes. In addition to deals on Heathrow to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Heathrow to Ottawa?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow 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 C$ 740). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of C$ 1,318). 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 16 September 2026.
Explore flights to Ottawa departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 16 September 2026.
Discover the top 2 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 16 September 2026.
Find the best flight deals on Cheapflights, where travelers 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?
When you search for this flight from Heathrow to Ottawa, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
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?
Yes! Cheapflights helps users easily find flights from Heathrow to Ottawa with no change fees.
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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