Cheap Flights from Ottawa to London

Compare Ottawa to London flight deals

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

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Flight deals from Ottawa to London

Looking for a cheap last-minute deal or the best return flight from Ottawa to London? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Ottawa to London

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

Ottawa to London: Alternative routes

Compare routes from Ottawa to London below. You may find an airport to fly into that's cheaper, faster, or easier than London.

Ottawa to London: Flight information

The things to know before you go.
Cheapest flight foundR 2,910
Cheapest month to flyApril

Finding cheap flights from Ottawa to London: Frequently asked questions

The best price we found for a return flight from Ottawa to London is R 5,961. 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 Ottawa to London. But we found flights with one stop from R 5,955.
As of February 2026, there are no flights flying from Ottawa to London.
The cheapest month to fly from Ottawa to London is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Ottawa to London Airport on Sunday, 26 April 2026.
No airlines currently offer direct flights between Ottawa and London Airport. 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 London 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 London is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to London is Porter Airlines .

Flying from Ottawa to London International Airport (YXU): What you need to know

  • Ottawa's main airport is Ottawa/Macdonald-Cartier International Airport (YOW). Explore your options for departing from this base when searching for your flights from Ottawa to London International Airport (YXU).

  • London International Airport is located in London. The city's timezone is UTC-4, which is the same as Ottawa.

  • Arrive at the airport on time so you don't miss your flight from Ottawa to YXU. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • With more people on the move during peak seasons, it's wise to get to your terminal even earlier. Two hours for domestic flights and up to four for international trips will allow for extra wait times.

Airports in Ottawa

Ottawa Gatineau Airport (YND)

  • The journey from central Ottawa to YND takes about 1 hour 40 minutes on public transport. If you ride-share, drive or get a cab, you'll cover the 24 kilometres in 20 minutes or so, depending on traffic.

  • Need a convenient place to stay before your flight from Ottawa to London International Airport? Meilleure Auberge and Lovely Room 4mins From Gatineau-Ottawa Airport are near Ottawa Gatineau Airport. They're an especially good choice if you're catching an early flight.

Ottawa/Macdonald-Cartier International Airport (YOW)

  • On public transport, you can travel from central Ottawa to YOW in around 45 minutes. The terminal is roughly 13 kilometres away, and making the journey by car will take approximately 20 minutes.

  • Flying off with the first light? Think about checking in to one of these accommodation options near Ottawa/Macdonald-Cartier International Airport the day before your Ottawa to YXU flight:

  • When it comes to flights staying on schedule, Ottawa/Macdonald-Cartier International Airport has an on-time arrival rate of 58.21%.

  • YOW is located at 50 Airport Road.

About London International Airport (YXU)

Getting from London International Airport (YXU) to central London

  • London International Airport is roughly 10 kilometres from central London. How long it takes to get there by cab or car hire depends on the time of day. Do a little research before you go.

  • If you're travelling on public transport, expect a journey time of around 55 minutes.

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

  • R 2,910 is the lowest price for a one-way ticket from Ottawa to London International Airport. A return flight starts at R 5,961. These prices can change based on availability and demand.

  • To find cheap flights from Ottawa to YXU, book early. Airlines typically offer lower prices when tickets are first released.

  • Cheap Ottawa to London International Airport tickets are easier to find if your travel dates are flexible. Use the 'Whole month' search tool to compare fares throughout the month and then fly out on the cheapest day.

  • Be the first to know about deals for plane tickets from Ottawa to YXU by creating a Price Alert. We'll send you an email or notification on the app when a lower fare becomes available.

  • Find the best deal on a flight from Ottawa to London International Airport with the help of the filters. Choose your preferred arrival and departure times, airlines and number of stops. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest.'

The best time to fly from Ottawa to London International Airport (YXU)

  • Think about your travel style when planning your trip dates. November is the quietest month to go to London. August is when most people book flights from Ottawa to London International Airport (YXU), which may be perfect if you'd rather travel when it's busy.

  • Before locking in your Ottawa to YXU plane ticket, consider the type of weather you enjoy. July is the warmest month in London, with temperatures ranging from 13ºC (55ºF) to 27ºC (81ºF).

  • If you'd rather travel in cooler conditions, look for a cheap ticket from Ottawa to London International Airport in January when temperatures are between -13ºC (9ºF) and 2ºC (36ºF).

More about London

  • After booking your flight from Ottawa to London International Airport, find a hotel that offers the right mix of comfort and location. Make one of these options your base for exploring London:

  • You'll find loads of terrific things to do in London when you're ready to go sightseeing. Make your way to Forks of the Thames River followed by Falls View Park and Fanshawe Pioneer Village.

Explore more of Canada

  • London will leave a lasting impression, but there are so many other corners of Canada you'll want to see. About 161 kilometres north-east of London, a trip to Toronto will keep your itinerary packed. Start with attractions like CN Tower, Skypod CN Tower and Royal Ontario Museum.

  • Around 137 kilometres north-east of London, Mississauga is another essential stop in Canada. Experience this destination's highlights firsthand at Lake Ontario, Xtreme Escape Adventures and Lake Aquitaine Trail.

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