Question 1

Which airport typically offers the quickest stopover for flights from Ottawa to London?

Accepted Answer

Flights via Newark (EWR) offer the fastest connection on this route, with an average stopover time of 1h 23m.

Question 2

What’s the fastest stopover option from Ottawa to London?

Accepted Answer

Flights via Halifax (YHZ) have the shortest average one-way travel time for one-stop routes: 9h 07m.

Question 3

What’s the top stopover airport for flights from Ottawa to London?

Accepted Answer

Paris (CDG) – chosen by Cheapflights users on 46% of one-stop itineraries from Ottawa to London on Cheapflights.

Question 4

What’s the cheapest stopover airport for flights from Ottawa to London?

Accepted Answer

Paris (CDG) is the most affordable one-stop option, with an average return flight price of £458.

Question 5

How long is the flight from Ottawa to London?

Accepted Answer

A quick flight from Ottawa to London can take about 6h 35m. Air Transat provides one of the quickest options available for as low as £522. The distance between Ottawa and London is about 3320 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

Question 6

What is the cheapest airline to fly from Ottawa to London round-trip?

Accepted Answer

Cheapflights users have booked flights from Ottawa to London round-trip from £476. Air Canada is priced at 14% lower than the current average price of a flight leaving 3 months from now.

Question 7

How far ahead should I book a flight from Ottawa to London?

Accepted Answer

The price you pay for your flight from Ottawa to London may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 8

What is the cheapest month to book a flight from Ottawa to London?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Ottawa to London (average of £112). Flying from Ottawa to London in August is currently the most expensive (average of £164). 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.

Question 9

What is the cheapest day to fly from Ottawa to London?

Accepted Answer

Travellers seeking maximum savings on their Ottawa to London flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 10

E

Accepted Answer

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Question 11

E

Accepted Answer

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Question 12

What are the most popular routes from Ottawa to London?

Accepted Answer

While some choose either Ottawa - London Gatwick or Ottawa - London City, Ottawa - London Heathrow is the most popular route from Ottawa to London.

Question 13

What are the cheapest flights from Ottawa to London?

Accepted Answer

While on average a flight from Ottawa to London is generally £599, our data shows the cheapest flight currently is £552. When looking at the most popular route, (Ottawa - London Heathrow), you can expect to pay £440 for that flight.

Question 14

What are the most reliable airlines from Ottawa to London?

Accepted Answer

The top 3 most reliable airlines when flying from Ottawa to London are Air Canada (82%), Aegean Airlines (82%) and Austrian Airlines (82%).

Question 15

What is the cheapest day to fly round-trip from Ottawa to London?

Accepted Answer

It’s generally more expensive to depart on a Sunday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

Question 16

How far in advance should I book a flight from Ottawa to London?

Accepted Answer

Travelers have found it’s best to book a flight 36 days in advance to save up to 4% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 36 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Ottawa to London 1-2 weeks in advance for as low as £508, or £508 for flights within the next 24 hours.

Question 17

What is the cheapest month to fly from Ottawa to London?

Accepted Answer

Our data shows that February tends to be the cheapest month to fly to London from Ottawa. Users have commonly found prices around £556 for the month, but tickets can be as low as £425. Due to multiple factors, prepare for potentially higher prices in December.

Question 18

What is the cheapest time of day to fly from YOW to LON?

Accepted Answer

It’s typically best to fly out from Ottawa to London in the afternoon. Doing so could potentially save you 19% on the flight price compared to flying at midday, which is usually more expensive.

Question 19

What airport do you fly from for flights from Ottawa to London?

Accepted Answer

Most people fly from Ottawa (YOW) if they book a flight from Ottawa to London. On average, Ottawa has 1 outbound flight to London per day from 1 airline. Ottawa is conveniently located just 6.6 mi from Ottawa’s city center.

Question 20

Can I find deals for flights from Ottawa to London that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Ottawa to London flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 21

How can I find direct flights from Ottawa to London?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to London.

Question 22

Can I find deals for business class flights from Ottawa to London?

Accepted Answer

Yes. Cheapflights offers flight deals from Ottawa to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 23

How does Cheapflights help users find flights from Ottawa to London?

Accepted Answer

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from Ottawa today with Cheapflights!

Question 24

Why should you use Cheapflights to find cheap flight tickets from Ottawa to London?

Accepted Answer

Cheapflights helps you find that perfect flight to London from Ottawa by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Question 25

Can Cheapflights find flights from Ottawa to London with no change fees?

Accepted Answer

Yes, we can. To see specific flights from Ottawa to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Question 26

Can Cheapflights notify me if prices for flights from Ottawa to London become cheaper?

Accepted Answer

Not ready to book yet? You can track prices for flights from Ottawa to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

Round-trip from	£519
One-way from	£188
Popular in	December
Cheapest in	February
Average price	£575
Good round-trip deal	£567 or less

Cheap flights from Ottawa to London from £188

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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Ottawa to London are usually found in February or March, booked 62 days in advance, depart on a Monday or Friday and return on a Monday

Cheap flight deals from Ottawa to London

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Find flight deals from Ottawa to London

Cheapest flights from Ottawa to LondonExplore the most affordable flight options available from Ottawa to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 8월 2025.

Explore the most affordable flight options available from Ottawa to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 8월 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ottawa to London that are best for you.

Best time to book a flight from Ottawa to London

Have a flexible travel schedule? Discover the best time to fly to London from Ottawa with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to London

How far ahead should I book a flight from Ottawa to London?

Use this chart to determine the optimal time to book a return flight from Ottawa to London. Price data was last updated on 8 August 2025.

What is the cheapest month to book a flight from Ottawa to London?

What is the cheapest time of day to fly from YOW to LON?

Find hourly flight availability from Ottawa to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 8월 2025.

What’s the top stopover airport for flights from Ottawa to London?

Share of one-stop return flights from Ottawa to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

What’s the cheapest stopover airport for flights from Ottawa to London?

Average return fare for one-stop flights from Ottawa to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

What’s the fastest stopover option from Ottawa to London?

Shortest average travel time for one-stop one-way flights from Ottawa to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Which airport typically offers the quickest stopover for flights from Ottawa to London?

Average stopover duration for one-stop one-way flights from Ottawa to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 19 8월 2025.

Check out reviews from past customers who have flown with Air Canada from Ottawa to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Ottawa to London?

How long is the flight from Ottawa to London?

What is the cheapest airline to fly from Ottawa to London round-trip?

What are the most popular routes from Ottawa to London?

What are the most reliable airlines from Ottawa to London?

What are the cheapest flights from Ottawa to London?

Can I find deals for flights from Ottawa to London that include hotel bookings?

How can I find direct flights from Ottawa to London?

Can I find deals for business class flights from Ottawa to London?

What is the cheapest month to book a flight from Ottawa to London?

Travelling to a place near London?

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Alternative routes for Ottawa to London

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Top airline flying from Ottawa to London

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How does Cheapflights help users find flights from Ottawa to London?

Why should you use Cheapflights to find cheap flight tickets from Ottawa to London?

Can Cheapflights find flights from Ottawa to London with no change fees?

Can Cheapflights notify me if prices for flights from Ottawa to London become cheaper?

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Cheapest flights from Ottawa to London
Explore the most affordable flight options available from Ottawa to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 8월 2025.