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Flights to Ottawa from London

Cheap flights from London to Ottawa from £1,516. London (United Kingdom) - Ottawa (Canada) return flights from £352. From 09/10/2026 (Friday) - 12/10/2026 (Monday). Check for the dates with the lowest prices and find the cheapest rates.

Flights to Ottawa with top airlines

London to Ottawa flight information

DEPARTING FROM:
LON - All airports, London Heathrow Airport, Gatwick
ARRIVING IN:
Ottawa Macdonald-Cartier International Airport
AIRLINES:
Air Canada, Air Transat
AVG FLIGHT TIME:
9h 1m

More information about flights to Ottawa from London

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FAQs London to Ottawa flights

FAQs

  • Can I combine different airlines on the same trip?

    Of course. We offer you the possibility of booking with more than 400 airlines so that you can find the cheapest fare or the most convenient combination: outbound flight with one airline and return flight with another.

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  • How long does a flight take between London and Ottawa?

    The flight from London to Ottawa has a duration of 9h 1m.

  • What are the cheapest flights from London to Ottawa?

    The cheapest one-way flight costs £1,516 flying with Air Canada and the cheapest return flight costs £352 with Air Transat.

  • How many airports are there in the city of London?

    London has 3 airport: LON - All airports, London Heathrow Airport, Gatwick.

  • How many airports does Ottawa have?

    There are 1 airports in Ottawa: Ottawa Macdonald-Cartier International Airport

  • Which Ottawa airport is the most central?

    The most central airport is Ottawa Macdonald-Cartier International Airport, 11.1km.

  • Which airlines have flights from London to Ottawa?

    There are 2 airlines with flights from London to Ottawa; Those that offer lower prices are TAP-Portugal (£1,570), Avianca (£1,558), Air Canada (£1,518).

  • Schedules of the first and last flight from London to Ottawa

    The first flight from London to Ottawa is at 17:15 and the last flight departs at 15:02.