Cheap flights from Ottawa to London from C$ 358
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 2/8. 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 Ottawa to London
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United Airlines 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 cheapest month to fly to London?
In general, February is the cheapest month to fly from Ottawa to London. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 901. If you aren’t able to travel to London during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of C$ 968.
What is the cheapest day to depart on your flight to London?
According to our data, Saturday is the cheapest day to fly to London from Ottawa. The lowest ticket price found for a Saturday departure recently was C$ 1,064. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ottawa to London for around C$ 1,212.
What is the cheapest time of day to depart on your flight to London?
Our most recent data shows that the best time of day to fly to London is in the morning. Flights from Ottawa to London during this time can be as low as C$ 1,060. At noon is when there is more demand to fly to London, so prices are often more expensive at around C$ 1,119 per ticket.
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 weeks ahead of your departure date. In general, you can expect to find flights to London for around C$ 1,059 when searching 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 C$ 981 on momondo.
What cabin class options are available on Ottawa to London flights?
There are 3 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 July 2025, prices for Ottawa to London flights are approximately 39% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Ottawa to London?
Air Canada is the most popular carrier operating from Ottawa to London
Which airlines fly to London?
Air Canada, British Airways and Lufthansa 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 61% of people opting to fly with this airline when travelling to London. Keep in mind that there are 12 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?
As of July 2025, 3 flights take off from Ottawa and land in London each day. The most common flight departure time for this route is 9:00p.m., with 100% of daily flights taking off in the evening.
How many flights depart from Ottawa to London on average per week?
The number of flights available between Ottawa and London is 24 per week as of July 2025. The most frequent departure day is Wed, with 29% of weekly flights leaving 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 | C$ 358 |
|---|---|
Fastest flight time | 6h 35m |
Direct flights | Tue, Thu, Fri and Sun |
Airports in London | 6 airports |
How far is Ottawa to London by plane?
A flight from Ottawa to London will travel around 5358.1 km. In terms of flight time, this usually takes a little over 6h 35m.
When did momondo last update prices for flights from Ottawa Airport to London?
Prices for flights from Ottawa Airport to London were last updated today.
How many operators does momondo search for flights from Ottawa Airport to London?
As of July 2025, there are 8 operators available to choose from for flights from Ottawa Airport to London.
How old do you have to be to fly from Ottawa Airport to London?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 72.73% of the total bookings. Other popular models include Airbus A321neo with 6.06%, Boeing 787-8 Dreamliner with 6.06%, and Airbus A330-200 with 4.55%.
What is the most popular airline from Ottawa to London?
momondo data reveals that the most frequently booked airline on the route from Ottawa to London is Air Canada, representing 67% of all bookings. The subsequent popular airlines are Lufthansa at 9%, Air France at 8%, and Air Transat at 6%.
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 C$ 722 | Free Cancellation | Rating 7.4 654 reviews | |||
| PriceFrom C$ 722 | Free Cancellation | Rating 7.5 1,473 reviews | |||
| PriceFrom C$ 785 | Free Cancellation | Rating 7.8 407 reviews | |||
| PriceFrom C$ 818 | Free Cancellation | Rating 7.8 1,366 reviews | |||
| PriceFrom C$ 887 | Free Cancellation | Rating 7.4 8,861 reviews | |||
| PriceFrom C$ 893 | Free Cancellation | Rating 7.1 9,678 reviews | |||
| PriceFrom C$ 897 | Free Cancellation | Rating 8.0 298 reviews | |||
| PriceFrom C$ 944 | Free Cancellation | Rating 6.8 7,207 reviews |
United Airlines Flights From Ottawa to London
The lowest priced United Airlines flight from Ottawa to London from the last 72 hours was C$ 651. Generally, United Airlines has 4 flights on this route every week with an average price of C$ 722. United Airlines is rated 7.4/10 by our users.
Air Canada Flights From Ottawa to London
Another popular option for Ottawa to London flights is Air Canada (7.1/10, 9,678 ratings). Air Canada flies from Ottawa to London around 4 times per week, with deals starting from C$ 655 round-trip and rising to an average price of around C$ 760.
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?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ottawa to London for you.
Can I find flights from Ottawa to London with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Ottawa to London flights to just show those with flexible booking policies.
How can momondo help me find flights from Ottawa to London?
Once you have performed a search for Ottawa to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Ottawa to London right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Ottawa to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.