Distance From London Heathrow Airport to Ottawa Macdonald-Cartier International Airport, LHR - YOW Distance

The distance from London Heathrow Airport (LHR) to Ottawa Macdonald-Cartier International Airport (YOW) is 3322 miles or 5346 kilometers or 2885 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from London ( United Kingdom ) to Ottawa ( Canada )?

A one-way nonstop (direct) flight between London and Ottawa takes around 7 hours 38 minutes.

Estimated flight time from London Heathrow Airport, London, United Kingdom to Ottawa Macdonald-Cartier International Airport, Ottawa, Canada is 7 hours 38 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • LHR - YOW

Kilometers		5346 km
Statute Miles		3322 miles
Nautical Miles		2885 nm
Avg. Time of Flight		7 hours 38 minutes

London Heathrow Airport to Ottawa Macdonald-Cartier International Airport Flight Route Map - LHR to YOW Flight Path

Location of London Heathrow Airport & Ottawa Macdonald-Cartier International Airport is given below.
Click the map to view London to Ottawa nonstop flight path and travel direction.

Click to see flight route on Google Map between London, United Kingdom and Ottawa, Canada. .

Nonstop flight route between London, United Kingdom and Ottawa, Canada.

Time Difference Between the Airports • LHR - YOW

Time difference between London (United Kingdom) and Ottawa (Canada) is 5 Hours.
Ottawa time is 5 Hours behind London.

Location	Local Time
London (United Kingdom)	2026-07-30, 20:53:34 BST
Ottawa (Canada)	2026-07-30, 15:53:34 EDT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

London Heathrow Airport (LHR / EGLL) London, United Kingdom

Destination

Ottawa Macdonald-Cartier International Airport (YOW / CYOW) Ottawa, Canada