Cheap flights from Ottawa to London from £181
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to London departing on 16/7. 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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United Airlines flights from Ottawa to London
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Air Canada flights from Ottawa to London
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How to get the cheapest flight ticket from Ottawa to London
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 typical price of a round-trip flight between Ottawa and London?
What is the cheapest month to fly to London?
The cheapest month to fly to London from Ottawa is in February. Flight prices, which tend to average around £486, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Ottawa averaging around £523.
What is the cheapest day to depart on your flight to London?
Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £520. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Ottawa to London for around £596.
What is the cheapest time of day to depart on your flight to London?
The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £535. Flights at midday are often more expensive, with an average ticket price of £656.
What is the cheapest Ottawa to London flight route?
Fly from Ottawa to London Heathrow for the best Ottawa - London flight prices
How far in advance should I book a flight to London?
You are more likely to see cheaper flights to London from Ottawa when booking 12 weeks ahead of your departure date. In general, you can expect to find flights to London for around £571 when searching 12 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Ottawa for as low as £531 on momondo.
What cabin class options are available on Ottawa to London flights?
There are 2 cabin classes available to choose from on Ottawa to London 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 Ottawa to London flights?
No. A direct flight is the cheapest option for a flight between Ottawa to London.
How have Ottawa to London flight prices changed over time?
As of June 2025, prices for Ottawa to London flights are approximately 20% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Ottawa to London?
WestJet, Air Canada, and Lufthansa are the most popular carriers operating from Ottawa to London
Which airlines fly to London?
Air Canada, British Airways and Air Transat are the top three most popular airlines that fly to London from Ottawa according to our data. Air Canada is the first choice among our users, with 62% of people opting to fly with this airline when travelling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ottawa to London on average per day?
1 flights are operational daily from Ottawa to London as of June 2025. The most popular departure time for this route is 21:00, with 100% of flights per day taking off in the evening.
How many flights depart from Ottawa to London on average per week?
7 flights are operational weekly from Ottawa to London 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 Ottawa to London
Cheap Ottawa to London (YOW to LON) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ottawa to London
Best price found | £181 |
|---|---|
Fastest flight time | 6h 35m |
Direct flights | Tue, Thu, Fri and Sun |
Airports in London | 5 airports |
How far is Ottawa to London by plane?
The straight-line distance from Ottawa to London is 3329.4 mi. By plane, this route typically takes 6h 35m.
When did momondo last update prices for flights from Ottawa Airport to London?
Prices for flights from Ottawa Airport to London are updated daily.
How many operators does momondo search for flights from Ottawa Airport to London?
There is 1 operator available for flights from Ottawa Airport to London as of June 2025.
How old do you have to be to fly from Ottawa Airport to London?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to London.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ottawa to London?
Based on momondo bookings for flights between Ottawa and London, the leading plane model is Boeing 787-9 Dreamliner, making up 76.39% of the total bookings. Other popular models include Airbus A321neo with 5.56%, Boeing 787-8 Dreamliner with 5.56%, and Airbus A330-200 with 4.17%.
What is the most popular airline from Ottawa to London?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ottawa to London is Air Canada (100% of total bookings).
Best airlines flying from Ottawa to London
Compare and see reviews for airlines that fly from Ottawa to London with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £474 | Free Cancellation | Rating 7.1 9,539 reviews |
Air Canada Flights From Ottawa to London
Across 1 Air Canada flight from Ottawa to London this week, the average price was £821, with the best Air Canada deals starting from £644 round-trip. 9,537 users have rated Air Canada on momondo, with an average score of 7.1/10.
Travelling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ottawa to London?
It is quick and easy to find Ottawa to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.
Can I find flights from Ottawa to London with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to London from Ottawa with this policy.
How can momondo help me find flights from Ottawa to London?
momondo helps you find the best flight between Ottawa and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Ottawa to London right now. Can momondo alert me if prices change?
If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Ottawa and alert you when they change.