Cheap flights from London Heathrow Airport to Ottawa from £285
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 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YOW
11 Jan — 18 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Ottawa are usually found in March or January, booked 89 days in advance, depart on a Friday or Monday and return on a Monday
Cheap flight deals from Heathrow to Ottawa
Enter your travel dates to find the best prices.
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 12 December 2025.
Wed 31/1212:00LHR - YOW
Nonstop7h 30mAir Canada
Wed 14/114:50YOW - LHR
1 stop11h 20mAir Canada
Deal found 11/12£503
Wed 31/1212:00LHR - YOW
Nonstop7h 30mAir Canada
Tue 13/114:05YOW - LHR
1 stop13h 25mAir Canada
Deal found 11/12£505
Wed 10/1213:25LHR - YOW
2 stops26h 56mAir Canada
Wed 7/116:40YOW - LHR
1 stop22h 55mAir Canada
Deal found 10/12£515
Wed 10/1213:25LHR - YOW
2 stops25h 21mAir Canada
Thu 8/108:30YOW - LHR
2 stops17h 40mAir Canada
Deal found 10/12£518
Wed 10/1213:25LHR - YOW
2 stops25h 21mAir Canada
Mon 5/117:59YOW - LHR
1 stop22h 21mAir Canada
Deal found 10/12£535
Thu 11/1209:00LHR - YOW
1 stop13h 43mAir Canada
Wed 7/116:40YOW - LHR
1 stop22h 55mAir Canada
Deal found 10/12£537
Fri 12/1209:00LHR - YOW
1 stop10h 21mAir Canada
Fri 9/114:50YOW - LHR
1 stop11h 20mAir Canada
Deal found 10/12£539
Thu 11/1209:00LHR - YOW
2 stops13h 40mAir Canada
Fri 9/114:50YOW - LHR
1 stop11h 20mAir Canada
Deal found 10/12£544
Mon 15/1209:00LHR - YOW
2 stops17h 18mAir Canada
Thu 8/108:30YOW - LHR
2 stops17h 40mAir Canada
Deal found 10/12£544
Mon 15/1209:00LHR - YOW
2 stops13h 18mAir Canada
Fri 9/112:00YOW - LHR
2 stops14h 10mAir Canada
Deal found 10/12£550
Sat 13/1206:50LHR - YOW
2 stops14h 42mUnited Airlines
Tue 6/119:27YOW - LHR
1 stop30h 13mUnited Airlines
Deal found 10/12£554
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 12 December 2025.
Thu 22/119:20LHR - YOW
1 stop24h 50mVirgin Atlantic
Tue 27/117:20YOW - LHR
1 stop12h 10mVirgin Atlantic
Deal found 9/12£487
Fri 9/114:30LHR - YOW
1 stop15h 12mMultiple Airlines
Sun 18/117:35YOW - LHR
1 stop11h 55mMultiple Airlines
Deal found 10/12£499
Thu 9/408:45LHR - YOW
2 stops30h 21mAir Canada
Sat 18/421:00YOW - LHR
Nonstop6h 35mAir Canada
Deal found 11/12£508
Thu 22/106:50LHR - YOW
2 stops14h 40mUnited Airlines
Mon 26/114:05YOW - LHR
2 stops15h 45mUnited Airlines
Deal found 11/12£518
Sun 15/206:30LHR - YOW
2 stops13h 40mKLM
Tue 17/318:20YOW - LHR
2 stops15h 30mKLM
Deal found 11/12£525
Fri 22/506:15LHR - YOW
1 stop13h 50mVirgin Atlantic
Wed 27/517:15YOW - LHR
1 stop18h 20mVirgin Atlantic
Deal found 10/12£489
Tue 17/206:30LHR - YOW
2 stops13h 40mMultiple Airlines
Tue 17/318:20YOW - LHR
1 stop15h 25mMultiple Airlines
Deal found 11/12£502
Mon 12/107:55LHR - YOW
2 stops18h 23mUnited Airlines
Tue 20/109:45YOW - LHR
2 stops15h 35mUnited Airlines
Deal found 11/12£537
Tue 17/206:30LHR - YOW
2 stops13h 40mMultiple Airlines
Sun 15/318:20YOW - LHR
1 stop12h 10mMultiple Airlines
Deal found 11/12£502
Sat 24/109:10LHR - YOW
2 stops17h 08mUnited Airlines
Sat 31/115:10YOW - LHR
1 stop10h 10mUnited Airlines
Deal found 10/12£537
Sun 15/206:30LHR - YOW
2 stops13h 40mMultiple Airlines
Tue 17/318:20YOW - LHR
1 stop9h 35mMultiple Airlines
Deal found 11/12£502
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 12 December 2025.
Fri 9/112:00LHR - YOW
Nonstop7h 30mAir Canada
Sun 18/121:55YOW - LHR
Nonstop6h 25mAir Canada
Deal found 11/12£518
Wed 8/412:40LHR - YOW
Nonstop7h 55mAir Canada
Sat 18/421:00YOW - LHR
Nonstop6h 35mAir Canada
Deal found 11/12£529
Fri 9/112:00LHR - YOW
Nonstop7h 30mLufthansa
Fri 16/121:55YOW - LHR
Nonstop6h 25mLufthansa
Deal found 11/12£532
Sun 8/312:00LHR - YOW
Nonstop7h 30mMultiple Airlines
Mon 20/718:55YOW - LHR
Nonstop6h 35mMultiple Airlines
Deal found 11/12£532
Sun 8/212:00LHR - YOW
Nonstop7h 30mLufthansa
Sun 15/221:55YOW - LHR
Nonstop6h 25mLufthansa
Deal found 11/12£533
Sun 8/312:00LHR - YOW
Nonstop7h 30mAir Canada
Mon 20/718:55YOW - LHR
Nonstop6h 35mAir Canada
Deal found 11/12£539
Sun 8/312:00LHR - YOW
Nonstop7h 30mAir Canada
Thu 16/718:55YOW - LHR
Nonstop6h 35mAir Canada
Deal found 11/12£540
Sun 15/212:00LHR - YOW
Nonstop7h 30mAir Canada
Sun 15/322:55YOW - LHR
Nonstop6h 25mAir Canada
Deal found 11/12£541
Fri 6/212:00LHR - YOW
Nonstop7h 30mAir Canada
Wed 11/221:55YOW - LHR
Nonstop6h 25mAir Canada
Deal found 11/12£542
Sun 11/112:00LHR - YOW
Nonstop7h 30mAir Canada
Wed 21/121:55YOW - LHR
Nonstop6h 25mAir Canada
Deal found 11/12£543
Sun 18/112:00LHR - YOW
Nonstop7h 30mLufthansa
Fri 23/121:55YOW - LHR
Nonstop6h 25mLufthansa
Deal found 12/12£615
Last-minute flights from Heathrow to Ottawa
Discover last-minute flight deals from Heathrow to Ottawa. Data last updated 12 December 2025 and is based on user searches.
Wed 31/1212:00LHR - YOW
Nonstop7h 30mAir Canada
Wed 14/114:50YOW - LHR
1 stop11h 20mAir Canada
Deal found 11/12£503
Wed 31/1212:00LHR - YOW
Nonstop7h 30mAir Canada
Tue 13/114:05YOW - LHR
1 stop13h 25mAir Canada
Deal found 11/12£505
Thu 8/109:00LHR - YOW
2 stops34h 07mAir Canada
Thu 15/110:30YOW - LHR
2 stops15h 40mAir Canada
Deal found 11/12£490
Fri 9/114:30LHR - YOW
1 stop15h 12mMultiple Airlines
Sun 18/117:35YOW - LHR
1 stop11h 55mMultiple Airlines
Deal found 10/12£499
Mon 12/109:00LHR - YOW
2 stops17h 18mAir Canada
Wed 21/121:55YOW - LHR
Nonstop6h 25mAir Canada
Deal found 10/12£497
Tue 13/114:45LHR - YOW
1 stop29h 25mVirgin Atlantic
Tue 20/117:20YOW - LHR
1 stop9h 40mVirgin Atlantic
Deal found 11/12£477
Thu 22/119:20LHR - YOW
1 stop24h 50mVirgin Atlantic
Tue 27/117:20YOW - LHR
1 stop12h 10mVirgin Atlantic
Deal found 9/12£487
Thu 22/111:45LHR - YOW
2 stops17h 57mMultiple Airlines
Tue 27/117:20YOW - LHR
1 stop9h 35mMultiple Airlines
Deal found 9/12£496
Thu 22/109:00LHR - YOW
1 stop10h 21mAir Canada
Tue 27/110:20YOW - LHR
2 stops15h 50mAir Canada
Deal found 9/12£500
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 12 December 2025.
Sun 25/114:50LHR - YOW
1 stop28h 32mMultiple Airlines
Deal found 10/12£285
Wed 21/114:50LHR - YOW
1 stop28h 32mMultiple Airlines
Deal found 10/12£286
Fri 9/114:50LHR - YOW
1 stop28h 27mMultiple Airlines
Deal found 11/12£288
Wed 28/114:50LHR - YOW
1 stop28h 32mMultiple Airlines
Deal found 12/12£291
Tue 20/114:50LHR - YOW
2 stops38h 52mWestJet
Deal found 10/12£306
Wed 21/114:50LHR - YOW
2 stops38h 52mWestJet
Deal found 10/12£307
Fri 15/509:00LHR - YOW
1 stop11h 05mAir France
Deal found 11/12£311
Sun 15/306:20LHR - YOW
1 stop13h 50mAir France
Deal found 10/12£328
Sun 15/314:50LHR - YOW
2 stops31h 33mWestJet
Deal found 10/12£335
Sun 25/114:50LHR - YOW
2 stops32h 31mWestJet
Deal found 10/12£335
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 12 December 2025.
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 12 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Ottawa that are best for you.
Fly from
Heathrow
Fly to
Ottawa
Route
Depart
Return
Price
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Thu 22/1
19:20-15:10
1 stop24h 50m
Ottawa
Tue 27/1
17:20-10:30
1 stop12h 10m
£487
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Fri 22/5
06:15-15:05
1 stop13h 50m
Ottawa
Wed 27/5
17:15-16:35
1 stop18h 20m
£489
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Fri 9/1
14:30-00:42
1 stop15h 12m
Ottawa
Sun 18/1
17:35-10:30
1 stop11h 55m
£499
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Tue 17/2
06:30-15:10
2 stops13h 40m
Ottawa
Tue 17/3
18:20-13:45
1 stop15h 25m
£502
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Tue 17/2
06:30-15:10
2 stops13h 40m
Ottawa
Sun 15/3
18:20-10:30
1 stop12h 10m
£502
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Sun 15/2
06:30-15:10
2 stops13h 40m
Ottawa
Tue 17/3
18:20-07:55
1 stop9h 35m
£502
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Thu 9/4
08:45-10:06
2 stops30h 21m
Ottawa
Sat 18/4
21:00-08:35
Nonstop6h 35m
£508
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Thu 22/1
06:50-16:30
2 stops14h 40m
Ottawa
Mon 26/1
14:05-10:50
2 stops15h 45m
£518
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Sun 15/2
06:30-15:10
2 stops13h 40m
Ottawa
Tue 17/3
18:20-13:50
2 stops15h 30m
£525
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Mon 12/1
07:55-21:18
2 stops18h 23m
Ottawa
Tue 20/1
09:45-06:20
2 stops15h 35m
£537
Flights are sorted by cheapest return flights first.
Deals found on 10/12
Showing 1-10 of 21 results
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2
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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.
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?
Use this chart to determine the optimal time to book a return flight from Heathrow to Ottawa. Price data was last updated on 5 December 2025.
Booking 89 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, June is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of £306). Flying from London Heathrow Airport to Ottawa in August is currently the most expensive (average of £377). 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 12 December 2025.
A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Ottawa in the evening. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight in the afternoon.
How often are flights from London to Ottawa delayed?
About 8% of weekly flights between London and Ottawa have experienced delays in the past year, with the average delay time being 231 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 early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Monday 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 8% 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 59% 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 £526.
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 58m.
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 12 December 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Ottawa, such as Virgin Atlantic, Air France, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
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. 6 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 2 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 24h 50m. 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 Canada. Our recent data shows that you can find tickets from as low as £312 on this airline. Additional options worth looking into are United Airlines and KLM, starting at £337 and £352 round-trip. Users have found that Air Canada is 43% 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 WestJet. According to our data, you can fly for as low as £278. Users have also found prices from £292 and £519 on Virgin Atlantic and Lufthansa, 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 (100%), United Airlines (97%), Air Canada( 96%).
What are the cheapest flights from London Heathrow Airport to Ottawa?
Looking at all options, your cheapest flight can be booked for £428. While the most popular route (London Heathrow - Ottawa) can be booked for £459 on average, our data indicates £2,455 when flying from London Heathrow Airport to Ottawa.
Where are the most common stopover locations when flying from London Heathrow Airport to Ottawa?
The most popular stopover on flights from London Heathrow Airport to Ottawa is Paris. Montreal is the second most popular location for stopovers on flights from London Heathrow Airport to Ottawa.
What are some popular things to do or see while on a stopover in Paris?
The majority of Paris visitors spend their time at Eiffel Tower, Champs-Elysées, and Louvre Museum. Travelers on a layover in Paris can visit Eiffel Tower, Champs-Elysées, and Louvre Museum, by traveling 15.8 mi, 14.7 mi, and 14.3 mi, respectively after landing at Paris Charles de Gaulle. Travellers can book a car hire at Paris Charles de Gaulle for about £31 per day to make their sightseeing more efficient.
What are some popular points of interest to see during a stopover in Montreal?
If you're on a stopover in Montreal and looking for things to do, consider visiting Notre-Dame Basilica, Chapelle Notre-Dame-de-Bon-Secours, or Place des Arts. Notre-Dame Basilica, Chapelle Notre-Dame-de-Bon-Secours, and Place des Arts can be visited by travelling about 9.9 mi, 10.2 mi, and 9.5 mi respectively from Montreal Pierre Elliott Trudeau Intl. Travellers in need of a car in Montreal can hire one for about £33 per day.
Where are the least popular stopover locations for London Heathrow Airport to Ottawa flights?
The least popular stopover on flights from London Heathrow Airport to Ottawa is Toronto.
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 holiday 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, June is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of £306). Flying from London Heathrow Airport to Ottawa in August is currently the most expensive (average of £377). 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 12 December 2025.
Explore flights to Ottawa departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Discover the top 6 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 12 December 2025.
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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