Search flights from London (LON) to Ottawa (YOW)

Book your plane tickets from London to Ottawa with ease

Cheapest flights to Ottawa

The cheapest flights available in the next 60 days – prices are updated regularly

Sat 1 Nov
US$530.41
One way
Economy
1 traveller
Fri 31 Oct
US$557.77
One way
Economy
1 traveller
Mon 3 Nov
US$566.29
One way
Economy
1 traveller

Flying from London to Ottawa: things to know

The most popular route is from London Heathrow Airport in London to Ottawa Macdonald-Cartier International Airport in Ottawa. On average this flight takes 9 hours 1 minute one way and costs US$1,446 for the round trip.

Most popular route
London Heathrow Airport (LHR) to Ottawa Macdonald-Cartier International Airport (YOW)
Average flight time
9 hours 1 minute
Average round-trip price
US$1,446
Fly from London to Ottawa
18 airlines

Reasons to book flights with Booking.com

  • Great selection

    Easily compare flights, airlines and prices – all in one place

  • No hidden fees

    Always know exactly what you’re paying for

  • Flexibility

    Use our flexible plane ticket option to change your dates if needed

Flexible plane ticket options are available for an additional cost on selected airfares

Airlines that fly from London to Ottawa

Airline options may vary according to recently booked flights and your search terms

  • Air Canada
  • Air Transat
  • Lufthansa
  • Westjet
  • Virgin Atlantic
  • Air France
  • United Airlines
  • Porter Airlines
  • Aer Lingus
  • British Airways
  • Icelandair
  • Lot Polish Airlines
  • Azores Airlines
  • Scandinavian Airlines
  • Brussels Airlines
  • TAP Portugal

Frequently asked questions

Fly to more destinations from London

Research, refine and make plans for your whole trip

All flights

Take off to your next destination! Choose from a variety of airline, route and price options for your trip.

Flights to Ottawa Macdonald-Cartier International Airport

Jet into this airport to explore Ottawa at your leisure.

Flights from the United Kingdom to Canada

More options to fly to Canada.

Hotels in Ottawa

A popular choice with visitors to Canada.

Flights from London to Canada

Plan your next getaway from London.

Flights to Ontario

Reaching Ontario just got easier!

Flights to Ottawa-Gatineau National Capital Region

Get your flight tickets to Ottawa-Gatineau National Capital Region right here on Booking.com.

Flights to Ottawa and Countryside

Reaching Ottawa and Countryside just got easier!