Question 1

What are the cheapest airlines flying from London to Ottawa round-trip?

Accepted Answer

Air France, at £366, was found to be the cheapest airline from London to Ottawa.Alternate airlines flying return to your destination include KLM and Virgin Atlantic. Users have found that Air France is 33% cheaper than the other options available to this destination.

Question 2

What are the cheapest airlines to fly from London to Ottawa one-way?

Accepted Answer

For one-way options, check prices for WestJet. According to our data, you can fly for as low as £405. Users have also found prices from £428 and £438 on Air Transat and Aer Lingus, respectively.

Question 3

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

Accepted Answer

To ensure you get the cheapest price possible for a flight from London to Ottawa, you should look to book at least 88 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Question 4

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from London to Ottawa (average of £588). Flying from London to Ottawa in December is currently the most expensive (average of £875). 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 5

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

Accepted Answer

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

Question 6

E

Accepted Answer

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 inches per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

Question 7

E

Accepted Answer

If weather is an important factor for your trip to Ottawa, 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

Question 8

What are the most popular routes from London to Ottawa?

Accepted Answer

When deciding which route to take from London to Ottawa consider London Heathrow - Ottawa, London City - Ottawa or London Gatwick - Ottawa as they are the most popular.

Question 9

What are the cheapest flights from London to Ottawa?

Accepted Answer

Looking for the cheapest flight from London to Ottawa? While on average our users pay £1,222, our data indicates the cheapest price to be £367. The most popular route (London Heathrow - Ottawa), is priced around £366.

Question 10

What are the most reliable airlines from London to Ottawa?

Accepted Answer

Consider Air Canada (97%), Aegean Airlines (97%) or Austrian Airlines (97%) when booking your flight. These represent the most reliable airlines when flying from London to Ottawa.

Question 11

What are the most popular airlines that fly from London to Ottawa?

Accepted Answer

Air Canada, Air France and KLM are the most popular airlines when flying from London to Ottawa.

Question 12

Where are the most common stopover locations when flying from London to Ottawa?

Accepted Answer

London to Ottawa flights have a stopover in Toronto most of the time. Toronto is followed by Paris in terms of the most popular stopover location on flights from London to Ottawa.

Question 13

Where are the least popular stopover locations for London to Ottawa flights?

Accepted Answer

The least popular stopover on flights from London to Ottawa is Montreal.

Question 14

What are some popular things to do or see while on a stopover in Toronto?

Accepted Answer

Most Toronto visitors opt to spend their time experiencing Union Station, CN Tower, and TIFF Bell Lightbox. Union Station, CN Tower and TIFF Bell Lightbox are located about 12.1 mi, 11.9 mi, and 11.6 mi, respectively from Toronto Pearson Intl if you are interested in checking them out. Those landing in Toronto looking to spend some time exploring during their stopover can hire a car for about £37 per day.

Question 15

What are some popular points of interest to see during a stopover in Paris?

Accepted Answer

The majority of Paris visitors spend their time at Eiffel Tower, Moulin Rouge, and Champs-Elysées. Eiffel Tower, Moulin Rouge, and Champs-Elysées can be visited by travelling about 15.8 mi, 13.3 mi, and 14.7 mi respectively from Paris Charles de Gaulle. Those looking to explore during their stopover in Paris can hire a car from Paris Charles de Gaulle for about £37 per day.

Question 16

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

Accepted Answer

Friday flights are generally found to be more expensive for flights from London to Ottawa. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ottawa.

Question 17

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

Accepted Answer

Users have found that booking a flight from London to Ottawa at least 33 days early can save you up to 26% on average compared to booking a flight this week. If booking 33 days before your flight isn’t an option for you, users have found flights from London to Ottawa for as little as £529 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £613 for flights departing within the next 3 days.

Question 18

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

Accepted Answer

Our data shows that January tends to be the cheapest month to fly to Ottawa from London. Users have commonly found prices around £546 for the month, but tickets can be as low as £368. Due to multiple factors, prepare for potentially higher prices in August.

Question 19

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

Accepted Answer

It’s typically best to fly out from London to Ottawa in the evening. Doing so could potentially save you 18% on the flight price compared to flying in the morning, which is usually more expensive.

Question 20

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

Accepted Answer

If you book a flight to Ottawa from London, you will be flying to Ottawa, which is the city’s only airport. Ottawa (YOW) is located 6.6 mi from the center of Ottawa. There is 1 flight from London to Ottawa per day from 7 different airlines.

Question 21

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

Accepted Answer

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

Question 22

How can I find direct flights from London to Ottawa?

Accepted Answer

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

Question 23

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

Accepted Answer

Yes. Cheapflights offers flight deals from London to Ottawa 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 24

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

Accepted Answer

Cheapflights makes it easy to find London to Ottawa flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Question 25

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

Accepted Answer

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

Question 26

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

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Ottawa flexibly with Cheapflights today.

Question 27

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

Accepted Answer

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

Round-trip from	£366
One-way from	£255
Popular in	August
Cheapest in	January
Average price	£509
Good round-trip deal	£464 or less
Good one-way deal	£673 or less

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest£301	Average£433	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest£334	Average£348	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
KLM	Cheapest£356	Average£520	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air France	Cheapest£361	Average£491	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Virgin Atlantic	Cheapest£373	Average£443	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Air Transat	Cheapest£407	Average£538	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Lufthansa	Cheapest£441	Average£552	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Cheap flights from London to Ottawa from £255

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 20/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to Ottawa are usually found in January or February, booked 88 days in advance, depart on a Thursday or Monday and return on a Wednesday

Cheap flight deals from London to Ottawa

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Find flight deals from London to Ottawa

Cheapest flights from London to OttawaExplore the most affordable flight options available from London to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Explore the most affordable flight options available from London to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Cheapflights Fare Finder

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

Best time to book a flight from London to Ottawa

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from London to Ottawa. Price data was last updated on 9 June 2025.

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

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

Find hourly flight availability from London to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

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

Use this chart to determine the cheapest time to fly return from London to Ottawa. Price data was last updated on 16 December 2024.

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated 13 June 2025.

Read reviews from past customers who have flown Delta, KLM and Air Transat from London to Ottawa. 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 London to Ottawa. 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 into for flights to Ottawa from London?

What are the cheapest airlines flying from London to Ottawa round-trip?

What are the cheapest airlines to fly from London to Ottawa one-way?

What are the most popular routes from London to Ottawa?

What are the most reliable airlines from London to Ottawa?

What are the cheapest flights from London to Ottawa?

Where are the most common stopover locations when flying from London to Ottawa?

What are some popular things to do or see while on a stopover in Toronto?

What are some popular points of interest to see during a stopover in Paris?

Where are the least popular stopover locations for London to Ottawa flights?

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

How can I find direct flights from London to Ottawa?

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

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

Travelling to a place near London?

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Fly from London to Ottawa on these airlines

Choose from the following airlines for your flight from London to Ottawa. Flights are based on user searches made on Cheapflights and were last updated on 13 June 2025.

Top 7 airlines flying from London to Ottawa

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

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

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

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

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Cheapest flights from London to Ottawa
Explore the most affordable flight options available from London to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.