Cheap Flights from London to Ottawa

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Find the cheapest month or even day of the year to fly to Ottawa

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Find the cheapest month to fly from London to Ottawa

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Ottawa flights are currently cheapest in May.

Alternative London to Ottawa routes

Looking for the cheapest, fastest or easiest route from London to Ottawa? You could fly into the following airports instead.

London to Ottawa: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 11,501
Cheapest month to flyMay

Finding cheap flights from London to Ottawa: Frequently asked questions

There are 2 airports in Ottawa: Ottawa International and Ottawa Gatineau.
The best price we found for a return flight from London to Ottawa is ج.م.‏ 23,573. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London to Ottawa. But we found flights with one or more stops from ج.م.‏ 23,573.
As of March 2025, there are no flights flying from London to Ottawa.
The cheapest month to fly from London to Ottawa is usually March 2025.
If you're flying from London Airport, the cheapest airport near Ottawa is Ottawa International – which is 11.2 km away from the centre of Ottawa. We've found flights into this airport from ج.م.‏ 23,573.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Airport to Ottawa on Friday, 9 May 2025.
No airlines currently offer direct flights between London Airport and Ottawa. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ottawa but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ottawa is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around -3°C. July is typically the warmest month in Ottawa, when it usually averages around 25°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -16°C. The rainiest month is June.
Currently, WestJet offers the cheapest flight tickets to Ottawa.

Travelling from London International Airport (YXU) to Ottawa: what you need to know

  • London (the location of London International Airport) and Ottawa are in the same timezone — UTC-4.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to catch your flight from YXU to Ottawa.

  • During popular months like August, it's a good idea to get to the airport earlier than usual. Plan to arrive two hours before a domestic departure and four hours ahead of an international flight whenever you're travelling during a peak period in general.

  • You don't need your passport or a visa to travel within Canada. You will need a valid proof of identity though, such as a driver's licence or an ID card. Put them on your packing list once you've booked cheap tickets from London International Airport to Ottawa.

  • YXU is about 11 kilometres from central London. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 19 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the trip time to be approximately 53 minutes.

  • Need a handy hotel close to YXU? If you're boarding an early flight from London International Airport to Ottawa, these accommodation options will have you moments from check-in:

How to find the cheapest flights from London International Airport (YXU) to Ottawa

  • ج.م.‏ 11,501 is the lowest price for a one-way ticket from London International Airport to Ottawa. A return flight starts from ج.م.‏ 23,573. These fares can change depending on availability and demand.

  • It's usually best to book early if you want to find cheap tickets from YXU to Ottawa. That's because airlines adjust prices based on demand, which tends to rise closer to the departure date.

  • The 'Whole month' tool shows you the cheapest tickets from London International Airport to Ottawa across the entire month. It's the best way to find a bargain if your trip dates are flexible.

  • Sign into your online account or use the app to create a Price Alert. You'll be notified straight away if there's a cheaper deal on this route. It doesn't take long, and it'll save you the hassle of searching for cheap flight tickets from YXU to Ottawa every day.

  • Use the filters to tailor your flights from London International Airport to Ottawa. Enter your preferred departure and arrival times, airlines and number of stops. Alternatively, sort your results by 'Cheapest' to see the best deals.

Airports in Ottawa

Ottawa Gatineau Airport (YND)

Ottawa/Macdonald-Cartier International Airport (YOW)

  • Ottawa/Macdonald-Cartier International Airport (YOW) is about 13 kilometres from central Ottawa. Following your flight from London International Airport to Ottawa, it'll take you around 19 minutes to reach the heart of the city in a cab or ride-share.

  • You can expect the journey to take about 43 minutes on public transport.

  • After your flight from YXU to Ottawa, settle in at a hotel near YOW. These are some comfortable accommodation options that'll help you get into relaxation mode:

Best time to go to Ottawa

  • Before securing your flights from London International Airport to Ottawa, consider which time of year works best for you. High season in Ottawa offers a lively atmosphere and plenty of things to do, while the off-season brings cheaper hotel rates and smaller crowds.

  • Book your flight from London International Airport to Ottawa for July to visit the city during its warmest month. Expect temperatures to range from 13ºC to 27ºC.

  • If you want cooler conditions, search for a cheap flight from YXU to Ottawa in January when temperatures average between -19ºC and -2ºC.

More about Ottawa

  • When it comes to looking for somewhere to rest your head, you'll find the best places to stay in Ottawa right here. Explore these options after you've booked your flight from London International Airport to Ottawa:

  • Every great adventure has to include some sightseeing. Parliament Hill, Rideau Canal and National Gallery of Canada are essential stops on your Ottawa itinerary.

Complete your Ottawa trip with a car rental

  • Choose one of our car rentals in Ottawa and see the sights on your own schedule. Easily compare options in one place to find the ideal ride after booking your hotel and cheap flights from London International Airport to Ottawa.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.