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 25 Oct
US$507.36
One way
Economy
1 traveller
Mon 27 Oct
US$514.24
One way
Economy
1 traveller
Sun 26 Oct
US$518.68
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 3 minutes one way and costs US$1,427 for the round trip.

Most popular route
London Heathrow Airport (LHR) to Ottawa Macdonald-Cartier International Airport (YOW)
Average flight time
9 hours 3 minutes
Average round-trip price
US$1,427
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
  • United Airlines
  • Air France
  • Porter Airlines
  • British Airways
  • Aer Lingus
  • Lot Polish Airlines
  • Icelandair
  • Azores Airlines
  • TAP Portugal
  • Swiss
  • Brussels Airlines

Frequently asked questions

Fly to more destinations from London

Research, refine and make plans for your whole trip

Flights to Ontario

Get your flight tickets to Ontario right here on Booking.com.

Flights to Ottawa and Countryside

Reaching Ottawa and Countryside just got easier!

Flights to Ottawa-Gatineau National Capital Region

Reaching Ottawa-Gatineau National Capital Region just got easier!

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

Compare flights, find the best prices and hop on the next plane to Canada.

All flights

Fly to your next dream destination.