Cheap flights from London Heathrow Airport to Ottawa from C$ 476
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
2 Jan — 9 Jan1
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 March or April, booked 89 days in advance, depart on a Friday or Wednesday and return on a Thursday
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 3 December 2025.
Tue 9/127:40 a.m.LHR - YOW
2 stops15h 58mMultiple Airlines
Tue 17/32:05 p.m.YOW - LHR
2 stops37h 05mMultiple Airlines
Deal found 2/12C$ 891
Mon 8/129:00 a.m.LHR - YOW
1 stop10h 21mAir Canada
Mon 23/210:30 a.m.YOW - LHR
2 stops15h 40mAir Canada
Deal found 3/12C$ 911
Tue 9/129:00 a.m.LHR - YOW
2 stops19h 08mAir Canada
Thu 26/212:15 p.m.YOW - LHR
1 stop27h 20mAir Canada
Deal found 2/12C$ 918
Tue 9/121:25 p.m.LHR - YOW
2 stops25h 21mMultiple Airlines
Thu 26/22:05 p.m.YOW - LHR
1 stop13h 25mMultiple Airlines
Deal found 3/12C$ 919
Sat 27/129:00 a.m.LHR - YOW
1 stop13h 43mAir Canada
Mon 5/18:20 p.m.YOW - LHR
2 stops29h 50mAir Canada
Deal found 1/12C$ 949
Thu 25/126:50 a.m.LHR - YOW
2 stops15h 00mAir Canada
Wed 7/14:40 p.m.YOW - LHR
1 stop22h 55mAir Canada
Deal found 2/12C$ 963
Thu 4/129:00 a.m.LHR - YOW
2 stops13h 40mMultiple Airlines
Wed 11/310:55 p.m.YOW - LHR
Nonstop6h 25mMultiple Airlines
Deal found 1/12C$ 965
Fri 26/1211:10 a.m.LHR - YOW
1 stop12h 28mLufthansa
Sun 11/19:55 p.m.YOW - LHR
Nonstop6h 25mLufthansa
Deal found 3/12C$ 967
Sat 27/127:40 a.m.LHR - YOW
1 stop18h 38mAir Canada
Tue 6/17:55 p.m.YOW - LHR
1 stop30h 15mAir Canada
Deal found 3/12C$ 968
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 3 December 2025.
Wed 28/19:00 a.m.LHR - YOW
1 stop10h 21mAir Canada
Tue 3/24:40 p.m.YOW - LHR
1 stop22h 55mAir Canada
Deal found 1/12C$ 890
Fri 16/11:30 p.m.LHR - YOW
2 stops15h 24mUnited Airlines
Fri 23/110:30 a.m.YOW - LHR
2 stops14h 50mUnited Airlines
Deal found 2/12C$ 918
Thu 15/16:50 a.m.LHR - YOW
2 stops14h 40mUnited Airlines
Thu 22/13:10 p.m.YOW - LHR
2 stops14h 40mUnited Airlines
Deal found 1/12C$ 921
Sat 17/19:10 a.m.LHR - YOW
1 stop12h 20mUnited Airlines
Sat 24/15:55 p.m.YOW - LHR
1 stop12h 10mUnited Airlines
Deal found 3/12C$ 960
Sat 9/56:30 a.m.LHR - YOW
2 stops19h 44mUnited Airlines
Wed 13/52:48 p.m.YOW - LHR
1 stop11h 27mUnited Airlines
Deal found 30/11C$ 995
Sat 9/58:30 a.m.LHR - YOW
2 stops17h 44mUnited Airlines
Sun 17/56:00 a.m.YOW - LHR
1 stop19h 55mUnited Airlines
Deal found 30/11C$ 995
Thu 7/511:30 a.m.LHR - YOW
2 stops17h 15mUnited Airlines
Sun 17/57:25 p.m.YOW - LHR
1 stop10h 15mUnited Airlines
Deal found 30/11C$ 995
Thu 7/59:30 a.m.LHR - YOW
2 stops19h 15mUnited Airlines
Wed 13/52:48 p.m.YOW - LHR
1 stop11h 27mUnited Airlines
Deal found 30/11C$ 995
Wed 6/58:30 a.m.LHR - YOW
2 stops17h 44mUnited Airlines
Sun 17/56:00 a.m.YOW - LHR
1 stop23h 40mUnited Airlines
Deal found 30/11C$ 995
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 3 December 2025.
Wed 25/212:00 p.m.LHR - YOW
Nonstop7h 30mAir Canada
Wed 4/39:55 p.m.YOW - LHR
Nonstop6h 25mAir Canada
Deal found 2/12C$ 889
Wed 28/112:00 p.m.LHR - YOW
Nonstop7h 30mAir Canada
Wed 4/29:55 p.m.YOW - LHR
Nonstop6h 25mAir Canada
Deal found 1/12C$ 890
Fri 26/1212:00 p.m.LHR - YOW
Nonstop7h 30mLufthansa
Sun 11/19:55 p.m.YOW - LHR
Nonstop6h 25mLufthansa
Deal found 3/12C$ 979
Fri 26/1212:00 p.m.LHR - YOW
Nonstop7h 30mLufthansa
Fri 9/19:55 p.m.YOW - LHR
Nonstop6h 25mLufthansa
Deal found 2/12C$ 984
Wed 24/1212:00 p.m.LHR - YOW
Nonstop7h 30mAir Canada
Fri 9/19:55 p.m.YOW - LHR
Nonstop6h 25mAir Canada
Deal found 2/12C$ 1,000
Wed 17/1212:00 p.m.LHR - YOW
Nonstop7h 30mAir Canada
Wed 7/19:55 p.m.YOW - LHR
Nonstop6h 25mAir Canada
Deal found 2/12C$ 1,080
Wed 24/1212:00 p.m.LHR - YOW
Nonstop7h 30mLufthansa
Wed 7/19:55 p.m.YOW - LHR
Nonstop6h 25mLufthansa
Deal found 2/12C$ 1,150
Wed 17/1212:00 p.m.LHR - YOW
Nonstop7h 30mLufthansa
Wed 7/19:55 p.m.YOW - LHR
Nonstop6h 25mLufthansa
Deal found 2/12C$ 1,180
Sun 7/1212:00 p.m.LHR - YOW
Nonstop7h 30mLufthansa
Wed 17/129:55 p.m.YOW - LHR
Nonstop6h 25mLufthansa
Deal found 2/12C$ 1,285
Wed 17/1212:00 p.m.LHR - YOW
Nonstop7h 30mAir Canada
Wed 31/129:55 p.m.YOW - LHR
Nonstop6h 25mAir Canada
Deal found 2/12C$ 1,357
Last-minute flights from Heathrow to Ottawa
Discover last-minute flight deals from Heathrow to Ottawa. Data last updated 3 December 2025 and is based on user searches.
Mon 8/129:00 a.m.LHR - YOW
1 stop10h 21mAir Canada
Mon 23/210:30 a.m.YOW - LHR
2 stops15h 40mAir Canada
Deal found 3/12C$ 911
Tue 9/127:40 a.m.LHR - YOW
2 stops15h 58mMultiple Airlines
Tue 17/32:05 p.m.YOW - LHR
2 stops37h 05mMultiple Airlines
Deal found 2/12C$ 891
Tue 9/129:00 a.m.LHR - YOW
2 stops19h 08mAir Canada
Thu 26/212:15 p.m.YOW - LHR
1 stop27h 20mAir Canada
Deal found 2/12C$ 918
Tue 9/121:25 p.m.LHR - YOW
2 stops25h 21mMultiple Airlines
Thu 26/22:05 p.m.YOW - LHR
1 stop13h 25mMultiple Airlines
Deal found 3/12C$ 919
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 3 December 2025.
Sun 25/19:55 a.m.LHR - YOW
2 stops36h 08mMultiple Airlines
Deal found 1/12C$ 476
Thu 15/12:50 p.m.LHR - YOW
1 stop28h 32mMultiple Airlines
Deal found 1/12C$ 542
Mon 2/25:35 p.m.LHR - YOW
1 stop26h 35mVirgin Atlantic
Deal found 3/12C$ 549
Mon 2/22:45 p.m.LHR - YOW
2 stops14h 54mAir France
Deal found 3/12C$ 568
Thu 15/12:50 p.m.LHR - YOW
2 stops32h 31mWestJet
Deal found 1/12C$ 583
Sat 21/29:50 a.m.LHR - YOW
2 stops19h 49mMultiple Airlines
Deal found 1/12C$ 585
Mon 2/26:30 p.m.LHR - YOW
3 stops32h 59mMultiple Airlines
Deal found 3/12C$ 694
Sat 10/13:45 p.m.LHR - YOW
3 stops51h 37mMultiple Airlines
Deal found 2/12C$ 742
Sun 14/126:30 p.m.LHR - YOW
3 stops35h 12mMultiple Airlines
Deal found 2/12C$ 756
Sat 10/18:50 a.m.LHR - YOW
2 stops15h 28mAer Lingus
Deal found 2/12C$ 772
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 3 December 2025.
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 629,999 searches. Data last updated 3 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
Wed 28/1
9:00 a.m.-2:21 p.m.
1 stop10h 21m
Ottawa
Tue 3/2
4:40 p.m.-8:35 p.m.
1 stop22h 55m
C$ 890
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Fri 16/1
1:30 p.m.-11:54 p.m.
2 stops15h 24m
Ottawa
Fri 23/1
10:30 a.m.-6:20 a.m.
2 stops14h 50m
C$ 918
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Thu 15/1
6:50 a.m.-4:30 p.m.
2 stops14h 40m
Ottawa
Thu 22/1
3:10 p.m.-10:50 a.m.
2 stops14h 40m
C$ 921
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Sat 17/1
9:10 a.m.-4:30 p.m.
1 stop12h 20m
Ottawa
Sat 24/1
5:55 p.m.-11:05 a.m.
1 stop12h 10m
C$ 960
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Sat 9/5
6:30 a.m.-9:14 p.m.
2 stops19h 44m
Ottawa
Wed 13/5
2:48 p.m.-7:15 a.m.
1 stop11h 27m
C$ 995
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Sat 9/5
8:30 a.m.-9:14 p.m.
2 stops17h 44m
Ottawa
Sun 17/5
6:00 a.m.-6:55 a.m.
1 stop19h 55m
C$ 995
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Thu 7/5
11:30 a.m.-11:45 p.m.
2 stops17h 15m
Ottawa
Sun 17/5
7:25 p.m.-10:40 a.m.
1 stop10h 15m
C$ 995
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Thu 7/5
9:30 a.m.-11:45 p.m.
2 stops19h 15m
Ottawa
Wed 13/5
2:48 p.m.-7:15 a.m.
1 stop11h 27m
C$ 995
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Wed 6/5
8:30 a.m.-9:14 p.m.
2 stops17h 44m
Ottawa
Sun 17/5
6:00 a.m.-10:40 a.m.
1 stop23h 40m
C$ 995
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Mon 2/2
5:35 p.m.-3:10 p.m.
1 stop26h 35m
C$ 549
Flights are sorted by cheapest round-trip flights first.
Deals found on 3/12
Showing 1-10 of 19 results
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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 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?
Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Ottawa. Price data was last updated on 28 November 2025.
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 89 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, June is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of C$ 574). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of C$ 732). 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 3 December 2025.
It’s typically best to fly out from London Heathrow Airport to Ottawa in the evening. Doing so could potentially save you 26% on the flight price compared to flying in the afternoon, which is usually more expensive.
How often are flights from London to Ottawa delayed?
About 9% 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?
Thursday 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 has had the lowest number of delays on this route, with just 9% 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 91% 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.
Montreal (YUL) is the most affordable 1-stop option, with an average round-trip price of C$ 889.
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 Montreal (YUL) have the shortest average one-way travel time for 1-stop routes: 9h 14m.
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 Montreal (YUL) offer the fastest connection on this route, with an average layover time of 1h 54m.
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 3 December 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Ottawa, such as Air France,Air Canada, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
My experience with Air France was very disappointing. They claimed the flight was full and required me to check in my carry-on bag, yet once on board, there was plenty of overhead compartment space available. Several passengers with larger and heavier bags were allowed to bring theirs on without any issue. The inconsistency felt unfair and frustrating.
My experience with Air France was very disappointing. They claimed the flight was full and required me to check in my carry-on bag, yet once on board, there was plenty of overhead compartment space available. Several passengers with larger and heavier bags were allowed to bring theirs on without any issue. The inconsistency felt unfair and frustrating.
My experience with Air France was very disappointing. They claimed the flight was full and required me to check in my carry-on bag, yet once on board, there was plenty of overhead compartment space available. Several passengers with larger and heavier bags were allowed to bring theirs on without any issue. The inconsistency felt unfair and frustrating.
My experience with Air France was very disappointing. They claimed the flight was full and required me to check in my carry-on bag, yet once on board, there was plenty of overhead compartment space available. Several passengers with larger and heavier bags were allowed to bring theirs on without any issue. The inconsistency felt unfair and frustrating.
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 are 2 daily inbound flights from London Heathrow from 3 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 10h 21m. Fly via Air Canada or United Airlines 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?
Air France, at C$ 806, was found to be the cheapest airline from London Heathrow Airport to Ottawa.Alternate airlines to your destination round-trip include Air Canada and Lufthansa. Users have found that Air France is 21% 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 (100%), United Airlines (97%) and Air Canada (96%).
What are the cheapest flights from London Heathrow Airport to Ottawa?
Looking for the cheapest flight from London Heathrow Airport to Ottawa? While on average our users pay C$ 1,285, our data indicates the cheapest price to be C$ 772. The most popular route (London Heathrow - Ottawa), is priced around C$ 729.
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 C$ 574). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of C$ 732). 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 3 December 2025.
Explore flights to Ottawa departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 3 December 2025.
Discover the top 3 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 629,999 searches. Data last updated 3 December 2025.
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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