Cheap flights from London Heathrow Airport to Ottawa from £294
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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from London Heathrow to Ottawa are usually found in March or April, booked 88 days in advance, depart on a Thursday or Monday and return on a Wednesday
Cheap 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 July 2025.
Round-trip from | £456 |
---|---|
One-way from | £294 |
Popular in | August |
Cheapest in | March |
Average price | £701 |
Good round-trip deal | £532 or less |
Good one-way deal | £629 or less |
Find flight deals from Heathrow to Ottawa
Cheapest flights from Heathrow to OttawaExplore 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 July 2025.
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 July 2025.
Cheapflights Fare Finder
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 11 July 2025.
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
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Tue 9/12
10:00-00:10
2 stops19h 10m
Ottawa
Wed 17/12
17:20-10:45
2 stops12h 25m
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Mon 11/8
12:40-23:08
1 stop15h 28m
Ottawa
Mon 18/8
18:55-06:30
Nonstop6h 35m
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Wed 17/9
06:00-00:22
2 stops23h 22m
Ottawa
Wed 24/9
05:55-10:20
2 stops23h 25m
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Tue 14/10
06:50-13:51
2 stops12h 01m
Ottawa
Thu 23/10
18:40-09:35
1 stop9h 55m
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Mon 8/12
07:40-23:08
2 stops20h 28m
Ottawa
Tue 23/12
16:00-07:10
1 stop10h 10m
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Fri 8/8
06:40-16:43
2 stops15h 03m
Ottawa
Wed 13/8
14:45-09:20
2 stops13h 35m
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Sun 14/9
15:05-14:56
2 stops28h 51m
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Sun 2/11
14:50-05:33
2 stops19h 43m
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Sun 14/9
09:50-00:19
2 stops19h 29m
LondonOttawa
LHR - YOW
LHRYOW
London Heathrow
Thu 28/8
08:30-17:05
1 stop13h 35m
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.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Ottawa
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 27 June 2025.
Booking 88 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Ottawa (average of £588). Flying from London Heathrow Airport to Ottawa in December is currently the most expensive (average of £875). 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 July 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 26% on your trip compared to booking a flight in the afternoon.
What is the cheapest day to fly from London Heathrow Airport to Ottawa?
Use this chart to determine the cheapest time to fly return from Heathrow to Ottawa. Price data was last updated on 6 July 2025.
Travellers seeking maximum savings on their London Heathrow Airport to Ottawa flight should consider departing on Monday evenings when fares are most often at their lowest. Wednesday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
How much does it cost for a return flight from London Heathrow Airport to Ottawa?
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 July 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Ottawa, such as KLM, United Airlines, andBrussels Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
Overall
Boarding
Comfort
Entertainment
Crew
Reviews
Anonymous,Jun 2025
AMS - BOS
Food
Overall
Boarding
Comfort
Entertainment
Crew
Reviews
Anonymous,Jun 2025
AMS - BOS
Food
Overall
Boarding
Comfort
Entertainment
Crew
Reviews
Anonymous,Jun 2025
AMS - BOS
Food
Overall
Boarding
Comfort
Entertainment
Crew
Reviews
Anonymous,Jun 2025
AMS - BOS
Food
Overall
Boarding
Comfort
Entertainment
Crew
Reviews
Anonymous,Jun 2025
AMS - BOS
Food
Overall
Boarding
Comfort
Entertainment
Crew
Reviews
Anonymous,Jun 2025
AMS - BOS
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.
Travelling to a place near London Heathrow Airport?
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Alternative routes for Heathrow to Ottawa
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Heathrow to Ottawa
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 11 July 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Heathrow to Ottawa?
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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.