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Cheap Flights from Ottawa International to London

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      Travellers and cabin class, 1 Adult, Economy

      Compare Ottawa International to London flight deals

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

      Book the best London fare with no extra fees

      Flight deals from Ottawa International to London

      Looking for a cheap last-minute deal or the best return flight from Ottawa International Airport to London Airport? If you want to travel next month, return fares start from Rs86,037. Find the lowest prices on one-way and return tickets right here.
      London.Rs45,081 per passenger.Departing Wed, 7 Oct.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Wed, 7 Oct, arriving in London.Price includes taxes and charges.From Rs45,081, select.
      London.Rs57,185 per passenger.Departing Thu, 10 Dec.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Ottawa International on Thu, 10 Dec, arriving in London.Price includes taxes and charges.From Rs57,185, select.
      London.Rs73,127 per passenger.Departing Sun, 15 Nov.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Sun, 15 Nov, arriving in London.Price includes taxes and charges.From Rs73,127, select.
      London.Rs85,335 per passenger.Departing Wed, 2 Jun.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Ottawa International on Wed, 2 Jun, arriving in London.Price includes taxes and charges.From Rs85,335, select.
      London.Rs89,588 per passenger.Departing Sun, 27 Sep.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Ottawa International on Sun, 27 Sep, arriving in London.Price includes taxes and charges.From Rs89,588, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Ottawa International to London found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Ottawa International to London

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ottawa International to London flights are currently cheapest in October.
      Sep
      from Rs89,588
      Oct
      from Rs45,081
      Nov
      from Rs73,127
      Dec
      from Rs57,185
      Jan
      Find prices
      Feb
      Find prices
      Mar
      Find prices
      Apr
      Find prices
      May
      Find prices
      Jun
      from Rs85,335
      Jul
      Find prices
      Aug
      Find prices

      Ottawa International to London: Alternative routes

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

      London

      10km from central London
      Closest
      from Rs45,058
      Search flights

      Kitchener / Waterloo

      88km from central London
      Cheapest
      from Rs44,818
      Search flights

      Ottawa to London: Flight information

      The things to know before you go.
      Cheapest flight foundRs45,081
      Cheapest month to flyOctober

      Finding cheap flights from Ottawa International to London: Frequently asked questions

      The best price we found for a return flight from Ottawa International to London is Rs86,037. 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 International to London. But we found flights with one or more stops from Rs86,080.
      As of September 2026, there are no flights flying from Ottawa International to London.
      The cheapest month to fly from Ottawa International to London is usually October.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ottawa International Airport to London Airport on Thursday, 1 October 2026.
      No airlines currently offer direct flights between Ottawa International Airport 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.

      Currently, WestJet offers the cheapest flight tickets to London.

      Flying from Ottawa/Macdonald-Cartier International Airport (YOW) to London International Airport (YXU): what you need to know

      • Ottawa and London are in the UTC-4 timezone. This means there's no time difference to adjust for.

      • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport on time to catch your YOW to YXU flight.

      • You can expect longer queues during popular months such as July. Arriving up to four hours ahead of international flights and two hours for domestic departures will give you ample time for security and boarding.

      How to find the cheapest flights from Ottawa/Macdonald-Cartier International Airport (YOW) to London International Airport (YXU)

      • At the moment, Rs45,081 is the cheapest price we've seen for a one-way Ottawa/Macdonald-Cartier International Airport to London International Airport flight. The best price for a return ticket is Rs86,080. Keep in mind that fares may change due to availability at the time of booking.

      • It's usually best to book early if you're hoping to get cheap tickets from YOW to YXU. That's because airlines change prices based on demand, which tends to increase closer to departure.

      • Getting cheap flights from Ottawa/Macdonald-Cartier International Airport to London International Airport is easy if you can be flexible with your travel plans. Use the 'Whole month' function to see the lowest prices across every month and score a great deal.

      • Save time looking for cheap flights from YOW to YXU by creating a Price Alert. You'll get an email or notification on the app when a special offer becomes available.

      • Choose your ideal arrival and departure times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Ottawa/Macdonald-Cartier International Airport to London International Airport.

      Handy information about Ottawa/Macdonald-Cartier International Airport (YOW)

      • YOW is located at 50 Airport Road.

      • 58.21% of flights that depart Ottawa/Macdonald-Cartier International Airport touch down at their destination on time.

      • To get to Ottawa/Macdonald-Cartier International Airport from central Ottawa, it takes around 20 minutes if you're travelling by car. This depends on traffic, however. It's approximately 13 kilometres from the airport to the city centre.

      • Planning to take public transport? You can expect a journey time of around 45 minutes.

      • Get your journey off to a leisurely start by staying near YOW. Whether you're taking an early flight from Ottawa/Macdonald-Cartier International Airport to London International Airport or just don't like being rushed, these stays are perfect:

      Arriving at London International Airport (YXU)

      Getting from London International Airport (YXU) to central London

      • From London International Airport, London is approximately 11 kilometres away. It takes around 20 minutes to get to the centre driving.

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

      When to fly to London International Airport (YXU)

      • It's time to pick your trip dates for your flight from Ottawa/Macdonald-Cartier International Airport to London International Airport. August is the busiest month to head to London. If you like a more low-key vibe, go in November.

      • Book your flight from Ottawa/Macdonald-Cartier International Airport to London International Airport for July if you want to go to London during its warmest month. You can expect temperatures of between 13ºC and 27ºC.

      • If you'd rather travel in cooler conditions, look for a cheap ticket from YOW to YXU in January. Temperatures average between -13ºC and 2ºC then.

      Explore more of Canada

      • You've visited London, now it's time to explore more of Canada. Travel about 161 kilometres north-east to Toronto to check off its top attractions. From CN Tower to Royal Ontario Museum and Go Tours Canada - Distillery District, you've got a jam-packed schedule ahead.

      • Mississauga is another sought-after destination in Canada and is around 145 kilometres north-east of London. No trip is complete without dropping by Credit Meadows Park, Tree Sculpture - Animal Totem by Jim Menken and Dunn Park.

      Plan the rest of your trip from Ottawa to London

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.