Cheap flights from London to Ottawa from C$ 462
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 to Ottawa departing on 5/9. 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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How to get the cheapest flight ticket from London 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?
The month of January is, on average, the cheapest month to fly to Ottawa from London, with most prices found around C$ 852. If you aren’t able to travel to Ottawa during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of C$ 868.
What is the cheapest day to depart on your flight to Ottawa?
Our data shows that Wednesday is the least expensive day to fly to Ottawa. Tickets to fly out on this day can be as low as C$ 1,008. Flights from London to Ottawa on a Saturday will generally be more expensive and average around C$ 1,297. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Ottawa?
Our most recent data shows that the best time of day to fly to Ottawa is in the morning. Flights from London to Ottawa during this time can be as low as C$ 1,008. At noon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 1,103 per ticket.
What is the cheapest London to Ottawa flight route?
Fly from London Heathrow to Ottawa for the best London - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around C$ 1,038 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from London for as low as C$ 743 on momondo.
What cabin class options are available on London to Ottawa flights?
There are 3 cabin classes available to choose from on London 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 to Ottawa flights?
You could potentially save up to 32% on your flight if you consider stops on a London to Ottawa flight.
How have London to Ottawa flight prices changed over time?
As of July 2025, prices for London to Ottawa flights are approximately 37% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from London to Ottawa?
WestJet is the most popular carrier operating from London 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 according to our data. Air Canada is the first choice among our users, with 67% of people opting to fly with this airline when travelling to Ottawa. Keep in mind that there are 5 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 to Ottawa on average per day?
4 flights are operational daily from London to Ottawa as of July 2025. The most popular departure time for this route is 12:00p.m., with 100% of flights per day taking off in the afternoon.
How many flights depart from London to Ottawa on average per week?
The number of flights available between London and Ottawa is 28 per week as of July 2025. The most frequent departure day is Mon, with 25% of weekly flights leaving on this day.
When to book flights from London to Ottawa
Cheap London to Ottawa (LON to YOW) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Ottawa
Best price found | C$ 462 |
|---|---|
Fastest flight time | 7h 20m |
Direct flights | Tue, Thu, Fri and Sun |
Airports in Ottawa | 1 airport |
How far is London to Ottawa by plane?
London and Ottawa are 5358.1 km apart from one another. Typically, this will take 7h 20m by plane in normal conditions.
When did momondo last update prices for flights from London to Ottawa Airport?
Prices for flights from London to Ottawa Airport refresh daily.
How many operators does momondo search for flights from London to Ottawa Airport?
As of July 2025, there are 3 operators available to choose from for flights from London to Ottawa Airport.
How old do you have to be to fly from London to Ottawa Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London 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 to Ottawa?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to Ottawa is Boeing 787-9 Dreamliner (44.27% of total bookings). The next most popular plane models are Boeing 777 (21.81%), Boeing 777-200LR (6.88%), and Airbus A319 (6.02%).
What is the most popular airline from London to Ottawa?
Based on momondo bookings for flights between London and Ottawa, the leading airline is Air Canada, making up 70% of the total bookings. Other popular airlines include Air Transat with 30%.
Best airlines flying from London to Ottawa
Compare and see reviews for airlines that fly from London to Ottawa with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 726 | Free Cancellation | Rating 7.5 1,473 reviews | |||
| PriceFrom C$ 813 | Free Cancellation | Rating 7.1 9,678 reviews | |||
| PriceFrom C$ 842 | Free Cancellation | Rating 6.8 7,207 reviews |
Air Canada Flights From London to Ottawa
Air Canada is one of the most popular airlines flying from London to Ottawa, operating 4 flights/week on average for this route. A good Air Canada flight deal for London to Ottawa starts from C$ 596 round-trip, up to an average price of C$ 763. Our users have rated Air Canada at 7.1/10.
Lufthansa Flights From London to Ottawa
C$ 618 is the best Lufthansa flight deal from London to Ottawa found on momondo over the last 72 hours. The average Lufthansa ticket price found was closer to C$ 787, however, with flight time and availability significantly affecting the price. Lufthansa (6.8/10 from 7,207 user reviews) flies into Ottawa from London 4 times in an average week so prices can vary.
Travelling to a place near Ottawa?
Book flights to Ottawa if you plan to visit one of these locationsWhy 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?
momondo does allow users to show only those flights to Ottawa from London which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from London to Ottawa?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ottawa from London.
I’m not ready to book a flight from London to Ottawa right now. Can momondo alert me if prices change?
Price alerts on flights to Ottawa from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.