Cheap Flights London to Ottawa from £216

Flight FAQs

• Which airlines offer the cheapest flights from London to Ottawa?

  Based on Trip.com data, Air Transat offers Cheapest nonstop one-way flights from £216 (for example, LGW–YOW on Thu, Sep 24). For a Cheapest nonstop return flight, Air Transat offers fares from £301, departing on Wed, Sep 23 and returning on Thu, Sep 24.

• Which airlines offer direct flights from London to Ottawa?

  At the moment, you can catch a direct flight from London to Ottawa with the following airlines, including: Air Transat Air Canada Lufthansa easyJet Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from London to Ottawa?

  A flight from London (LON) to Ottawa (YOW) takes an average of 7 hours 56 minutes.

• When is the best time to book flights from London to Ottawa?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from London to Ottawa is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there from London to Ottawa each week?

  On average, 11 direct flights operate each week between London and Ottawa. See below the schedules of the main airlines serving this route:
  Lufthansa: S/-/T/W/-/F/- – LH6692 (departure at 09:39) United Airlines: S/-/T/W/-/F/- – UA8027 (departure at 09:39)

• How can I find the best deals on flights from London to Ottawa?

  Here are some tips for finding the best flight deals from London to Ottawa on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Thu, Sep 24, with one-way fares from just £216.
  · Compare airlines. Air Transat currently offers the lowest fares on this route.
  · Set up a price alert to track fare changes without searching every day.
  · Check Trip.com regularly for flight deals and available promo codes.
  · Avoid peak season or book early. July is generally the busiest month for travel to Ottawa.
  · Get exclusive promo codes on the Trip.com app.

• When is the best time to book a flight from London to Ottawa to get the best price?

  The cheapest month to book a flight from London to Ottawa is usually September, when demand is lower.

• Which upcoming date is the cheapest for flights from London to Ottawa?

  After crunching the numbers on our September flight calendar, it's currently cheapest to fly from London to Ottawa on September 20, 2026 with Air Transat, with prices starting at £290.

• Which airports should you choose for flights from London to Ottawa?

  Flights to Ottawa can arrive at: Gatineau-Ottawa Executive Airport (YND) and Ottawa International Airport (YOW). The most common route connects London Gatwick Airport and Ottawa International Airport (LGW–YOW).

• What is the time difference between London and Ottawa?

  The time difference between Ottawa and London is 5h.

• How can I change or cancel my flight ticket from London to Ottawa?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average price of a one-way flight from London to Ottawa?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from London to Ottawa is £744. Fares vary by travel date, airline and availability.

• What is the average price of a return flight from London to Ottawa?

  Based on Trip.com data for flights departing in the next 30 days, the average return fare from London to Ottawa is £795. Fares vary by travel date, airline and availability.

• How do I book flights from London to Ottawa on Trip.com?

  Enter London and Ottawa, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.

• Are there budget airlines on the London to Ottawa route?

  Air Transat and easyJetare the most popular budget airlines flying from London to Ottawa. Check baggage, seat and payment fees before comparing the final price.