Question 1

What is the cheapest month to fly to Ottawa?

Accepted Answer

In general, January is the cheapest month to fly from London to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £480. If you aren’t able to travel during the month of January, then book flights to Ottawa from London during February instead. Flights to Ottawa in February, while not as cheap as those in January, still average around £487.

Question 2

Which airlines fly to Ottawa?

Accepted Answer

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 71% of people opting to fly with this airline when travelling to Ottawa. Keep in mind that there are 10 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

Question 3

Can stopping save me money on London to Ottawa flights?

Accepted Answer

You could potentially save up to 23% on your flight if you consider stops on a London to Ottawa flight.

Question 4

Which stopover airport offers the lowest fares from London to Ottawa?

Accepted Answer

Flights via Toronto (YYZ) offer the lowest average return price of £426.

Question 5

What is the cheapest day to depart on your flight to Ottawa?

Accepted Answer

The cheapest day to depart on your flight to Ottawa is on a Friday when prices can be found for as low as £529. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around £625. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ottawa.

Question 6

How many flights depart from London to Ottawa on average per day?

Accepted Answer

The number of flights available between London and Ottawa is 1 per day as of January 2026. The most frequent departure time is 12:00, with 100% of daily flights leaving in the afternoon.

Question 7

How have London to Ottawa flight prices changed over time?

Accepted Answer

As of January 2026, prices for London to Ottawa flights are approximately 2% more expensive when compared to flights at the same time last year.

Question 8

What is the cheapest time of day to depart on your flight to Ottawa?

Accepted Answer

Flying to Ottawa from London at midday is the least expensive time of day to depart. momondo users have found prices as low as £547 when looking at flights departing at midday. In the morning is when there is more demand to fly to Ottawa, so prices are often more expensive at around £570 per ticket.

Question 9

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Friday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

Question 10

What is the cheapest London to Ottawa flight route?

Accepted Answer

Fly from London Gatwick to Ottawa for the best London - Ottawa flight prices

Question 11

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

Accepted Answer

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 £555 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from London for as low as £377 on momondo.

Question 12

What cabin class options are available on London to Ottawa flights?

Accepted Answer

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.

Question 13

Which stopover airport has the shortest connection time from London to Ottawa?

Accepted Answer

Newark (EWR) has the shortest average stopover time for this route: 1h 31m.

Question 14

Which airline has the best punctuality record on London to Ottawa flights?

Accepted Answer

According to our data, Air Canada have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

Question 15

What is the typical price of a round-trip flight between London and Ottawa?

Accepted Answer

Prices are currently typical for flights on this route.Typical prices usually range from £428 to £542.
The lowest price recently found on this route was £466.

Question 16

What is the cheapest airline that flies from London to Ottawa?

Accepted Answer

Air Transat, Virgin Atlantic, and WestJet are the most popular carriers operating from London to Ottawa

Question 17

How often are flights from London to Ottawa delayed?

Accepted Answer

Historically, on average around 8% of flights between London and Ottawa have experienced a delay on any given week. The average delay length over the past 12 months has been 231 minutes.

Question 18

What is the most punctual flight time for London to Ottawa flights?

Accepted Answer

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Question 19

Which airport is the most popular for stopovers for flights between London and Ottawa?

Accepted Answer

Paris (CDG) was the most common stop: 53% of momondo users choosing one-stop flights on this route connected there.

Question 20

Which stopover airport has the shortest travel time from London to Ottawa?

Accepted Answer

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 23m.

Question 21

How many flights depart from London to Ottawa on average per week?

Accepted Answer

The number of flights available between London and Ottawa is 12 per week as of January 2026. The most frequent departure day is Wed, with 50% of weekly flights leaving on this day.

Question 22

Which airlines fly direct from London to Ottawa?

Accepted Answer

With flights from London to Ottawa, you will notice that none go direct as the distance between countries is rather long. You can find many flights from two predominant airlines that include one lay-over, and range between 9 hours and 14 hours on average. These are from Air Canada at about 12h 30min, usually stopping at Lynn Lake Airport (YYL) in Manitoba, and Lufthansa, which averages about 9 hours, and mostly stops at Trudeau International Airport (YUL) in Montreal. Occasionally, you can find a United Airlines flight that averages about 11 hours and stops in Washington Dulles International Airport (IAD). Booking further in advance is also a good solution for getting the shortest flight as emergency bookings will sometimes result in two stops and a very long flying time. When it comes to booking flights from London to Ottawa with two stops, you can find several airlines servicing the route, including LOT and KLM. Your London departure airports are Heathrow (LHR), Gatwick (LGW) and London City Airport (LCY), and your arrival airport will be Ottawa Macdonald-Cartier International Airport (YOW).

What is the best way to get in and out of airports in London and Ottawa?

London airports are extremely well connected to public transportation networks. The airports most commonly used on this flight include Heathrow (LHR) which has three underground stations at their terminals directly linking to the city via the famous Piccadilly Line, and Gatwick (LGW), which has its own Gatwick Express tube using Victoria, District and Circle lines. London City Airport (LCY) is also very close and can be reached via the underground tube on the DLR Line. You will also find buses from the city leaving for all airports without hassle and, of course, a taxi is also great if you have heavy luggage to consider. When you arrive in Ottawa, your destination airport will be Ottawa Macdonald-Cartier International Airport (YOW) based just 15 minutes from the city centre. You will find that the Line 97 bus is available 24 hours a day and leaves every 30 minutes to get to the city. Apart from a taxi, this would be your ideal way to get to the city centre as the train station is not based at the airport.

What are the benefits of the different airports in London and Ottawa?

If you are based in the centre of London and need to fly to Ottawa, consider Heathrow (LHR) to optimise your ground travel time. LHR is 15 miles (25km) from the city centre as opposed to Gatwick (LGW) which is 28 miles (45km) away. Both airports are optimal in terms of services and amenities, but Heathrow is the biggest airport in Europe. Large airports can be quite daunting for first-time travellers, and if you would prefer a smaller airport that is still world-class, consider LGW for a comprehensive solution that will take less time to reach the gates. London City Airport (LCY) is exceptionally close to the capital and as a smaller business airport, it is often much easier to get in and out whilst avoiding the crowds. Ottawa Macdonald-Cartier International Airport (YOW) will be your destination. It's a fantastic airport that is convenient, clean and easy to find your way around.

Which cities can you get to from Ottawa Macdonald-Cartier International Airport?

Ottawa Macdonald-Cartier International Airport (YOW) is a great destination airport if you want to be close to the inner city but still have easy access to surrounding Canadian cities and municipalities. The airport predominantly serves the metropolitan part of the city capital which is known as the National Capital Region. The closest city is Gatineau which lies on the opposite side of the Ottawa River in French-speaking Quebec. It is reachable in under 15 minutes by taxi. The airport is also based about 40 minutes from Kemptville in Ottawa, and about a 2-hour drive from Montreal. Car hire at Ottawa Macdonald-Cartier International Airport is a great solution for road-tripping in Canada to see the surrounding areas of Ottawa. Alternatively, the Ottawa Station is just 15 minutes away and you can get train tickets to all the surrounding cities with ease.

Question 23

When did momondo last update prices for flights from London to Ottawa Airport?

Accepted Answer

Prices for flights from London to Ottawa Airport are updated daily.

Question 24

How many operators does momondo search for flights from London to Ottawa Airport?

Accepted Answer

As of January 2026, there are 7 operators available to choose from for flights from London to Ottawa Airport.

Question 25

How old do you have to be to fly from London to Ottawa Airport?

Accepted Answer

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 London to Ottawa Airport.

Question 26

What documentation or ID do you need to fly to Ottawa Airport?

Accepted Answer

The travel and health documents you'll need for your trip to Ottawa Airport 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 Ottawa Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best price found	£805
Fastest flight time	7h 30m
Direct flights	Mon, Tue, Thu, Fri, Sat and Sun
Airports in Ottawa	1 airport

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom £304	Free Cancellation	Rating 7.1 10,571 reviews	Search Air Canada flights
United Airlines	PriceFrom £335	Free Cancellation	Rating 7.4 9,132 reviews	Search United Airlines flights
KLM	PriceFrom £351	Free Cancellation	Rating 7.7 1,435 reviews	Search KLM flights
Air France	PriceFrom £362	Free Cancellation	Rating 7.4 1,514 reviews	Search Air France flights
Virgin Atlantic	PriceFrom £369	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
Air Transat	PriceFrom £402	Free Cancellation	Rating 7.7 490 reviews	Search Air Transat flights
Lufthansa	PriceFrom £450	Free Cancellation	Rating 6.8 7,675 reviews	Search Lufthansa flights

Cheap flights from London to Ottawa from £258

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 5/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London to Ottawa

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Air France flights from London to Ottawa

Our best Air France deals on London to Ottawa flight tickets

Lufthansa flights from London to Ottawa

Our best Lufthansa deals on London to Ottawa flight tickets

momondo Fare Finder

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

See travel insights to Ottawa from

How to get the cheapest flight ticket from London to Ottawa