Cheap flights from London to Montreal

November is the cheapest month on this route, and it is easy to see why: the summer crowds have gone and the city is cold but quiet. Fares climb from June through August, jump again around Christmas and New Year, and stay high through the February school break. If your dates are flexible, aim for a midweek departure and avoid flying out on a Friday or back on a Sunday. Book summer and Christmas travel several months ahead, while the good seats on the non-stop are still open; for a November trip you can often wait and watch the calendar.

The list splits into two groups. Air Transat covers the non-stop run between London and Montreal. Air France, KLM Royal Dutch Airlines, Finnair, Iberia, TAP Portugal and American Airlines are full-service carriers selling connecting itineraries; the short hop into Paris, Amsterdam, Helsinki, Madrid, Lisbon or a United States hub is often flown by a partner, with KLM Cityhopper on the Amsterdam legs. Easyjet and Vueling Airlines are the low-cost names, and their fares buy a seat and a small bag, with everything else charged on top. Full-service tickets normally include a checked bag, but the lightest fare families on the non-stop can leave it out, so check the rules first.

Montreal's airport is P Trudeau International, on the western side of the island, a short drive from downtown when the traffic behaves and noticeably longer in the morning and evening rush. A taxi rank and ride-hailing pickups sit outside the arrivals hall, and an express bus runs into the centre if you would rather not pay for a car. Allow time on the way back too: the same roads fill up, and check-in and security queues for transatlantic departures build through the afternoon. If you are connecting onwards inside Canada, you clear customs at Trudeau before the domestic leg, so leave a comfortable gap.

Currency

CAD ($)

Power sockets

Type A, B · 120 V

Language

English, French

Emergency number

911

Driving side

right

Calling code

+1

Internet domain

.ca

Population of Montreal

1.9 M (2024)

Time zone

UTC-05 (America/Montreal)

Country facts: Wikidata

• Check which London airport you fly from — Heathrow, Gatwick, City, Luton and Stansted are far apart.
• On Easyjet or Vueling tickets, price the cabin bag and the checked bag before you compare totals.
• If your trip is stitched from separate tickets, leave a long gap at the connection; no one rebooks you if the first flight is late.
• Confirm your entry documents for Canada, and check whether a connection in the United States adds its own rules.
• Decide between the non-stop and a cheaper connecting fare — the door-to-door time differs a lot.
• Book summer and Christmas trips early; for November you can usually watch fares a while longer.