Cheap flights from London Heathrow Airport to Ottawa from £255
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Ottawa departing on 20/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Air Canada flights from London Heathrow Airport to Ottawa
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Lufthansa flights from London Heathrow Airport to Ottawa
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How to get the cheapest flight ticket from London Heathrow Airport to Ottawa
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Ottawa?
In general, March is the cheapest month to fly from London Heathrow Airport to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £446. If you aren’t able to travel during the month of March, then book flights to Ottawa from London Heathrow Airport during April instead. Flights to Ottawa in April, while not as cheap as those in March, still average around £492.
What is the cheapest day to depart on your flight to Ottawa?
The cheapest day to depart on your flight to Ottawa is on a Thursday when prices can be found for as low as £533. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around £594. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ottawa.
What is the cheapest time of day to depart on your flight to Ottawa?
Flying to Ottawa from London Heathrow Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as £473 when looking at flights departing in the evening. In the morning is when there is more demand to fly to Ottawa, so prices are often more expensive at around £573 per ticket.
What is the cheapest London Heathrow to Ottawa flight route?
Fly from London Heathrow to Ottawa for the best London Heathrow - Ottawa flight prices
How far in advance should I book a flight to Ottawa?
You are more likely to see cheaper flights to Ottawa from London Heathrow Airport when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around £561 when searching 13 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from London Heathrow Airport for as low as £401 on momondo.
What cabin class options are available on London Heathrow to Ottawa flights?
There are 3 cabin classes available to choose from on London Heathrow to Ottawa flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on London Heathrow Airport to Ottawa flights?
You could potentially save up to 23% on your flight if you consider stops on a London Heathrow Airport to Ottawa flight.
How have London Heathrow Airport to Ottawa flight prices changed over time?
As of June 2025, prices for London Heathrow Airport to Ottawa flights are approximately 27% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from London Heathrow to Ottawa?
Aer Lingus, WestJet, and Lufthansa are the most popular carriers operating from London Heathrow to Ottawa
Which airlines fly to Ottawa?
Air Canada, Lufthansa and British Airways are the top three most popular airlines that fly to Ottawa from London Heathrow Airport according to our data. Air Canada is the first choice among our users, with 68% of people opting to fly with this airline when travelling to Ottawa. Keep in mind that there are 10 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.
How many flights depart from London Heathrow Airport to Ottawa on average per day?
As of June 2025, there are 1 flights per day flying from London Heathrow Airport to Ottawa. The most common time of day flights depart is 12:00, with 100% of flights taking off in the afternoon.
How many flights depart from London Heathrow Airport to Ottawa on average per week?
7 flights are operational weekly from London Heathrow Airport to Ottawa as of June 2025. The most popular departure day for this route is Thu, with 100% of flights per week taking off on this day.
When to book flights from London Heathrow Airport to Ottawa
Cheap London Heathrow Airport to Ottawa (LHR to YOW) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Ottawa
Best price found | £255 |
|---|---|
Fastest flight time | 7h 20m |
Direct flights | Tue, Thu, Fri and Sun |
Airports in Ottawa | 1 airport |
How far is London Heathrow to Ottawa by plane?
The straight-line distance from London Heathrow to Ottawa is 3317.2 mi. A reasonable flight in good conditions will take 7h 20m.
When did momondo last update prices for flights from London Heathrow Airport to Ottawa Airport?
Prices for flights from London Heathrow Airport to Ottawa Airport refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to Ottawa Airport?
As of June 2025, there are 7 operators available to choose from for flights from London Heathrow Airport to Ottawa Airport.
How old do you have to be to fly from London Heathrow Airport to Ottawa Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Ottawa Airport.
What documentation or ID do you need to fly to Ottawa Airport?
The travel and health documents required for your trip to Ottawa Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ottawa Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London Heathrow Airport to Ottawa?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to Ottawa is Boeing 787-9 Dreamliner, representing 39.48% of all bookings. The subsequent popular models are Boeing 777 at 19.99%, Boeing 777-300ER at 10.89%, and Boeing 777-200LR at 6.32%.
What is the most popular airline from London Heathrow Airport to Ottawa?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to Ottawa is Air Canada (68% of total bookings). The next most popular airlines are Air France (12%), Lufthansa (12%), and Virgin Atlantic (5%).
Best airlines flying from London Heathrow Airport to Ottawa
Compare and see reviews for airlines that fly from London Heathrow Airport to Ottawa with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £309 | Free Cancellation | Rating 7.1 9,539 reviews | |||
| PriceFrom £334 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom £356 | Free Cancellation | Rating 7.8 1,358 reviews | |||
| PriceFrom £361 | Free Cancellation | Rating 7.5 1,463 reviews | |||
| PriceFrom £373 | Free Cancellation | Rating 7.4 652 reviews | |||
| PriceFrom £418 | Free Cancellation | Rating 7.8 396 reviews | |||
| PriceFrom £441 | Free Cancellation | Rating 6.7 7,139 reviews |
United Airlines Flights From London Heathrow Airport to Ottawa
United Airlines flies from London Heathrow Airport to Ottawa around 1 time per week, with 8,790 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from London Heathrow Airport to Ottawa in the last 72 hours was £454 (round-trip), much lower than the average airfare cost of £473 for United Airlines flights on this route.
Air Canada Flights From London Heathrow Airport to Ottawa
Across 9,539 Air Canada reviews on momondo, the average score is 7.1/10. Air Canada flies from London Heathrow Airport to Ottawa about 1 time each week, with ticket deals ranging from £420 to £760. Price data is based on momondo searches in the last 72 hours.
Why use momondo?
Why should I use momondo to find a flight deal from London to Ottawa?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Ottawa . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from London to Ottawa with flexible booking policies on momondo?
Flights from London to Ottawa with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from London to Ottawa?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Ottawa.
I’m not ready to book a flight from London to Ottawa right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Ottawa from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.