Flights from Montreal / Pierre Elliott Trudeau International Airport to London Heathrow Airport

Our reference schedule data records nonstop service on this pair (Air Canada, British Airways). Airline schedules can change, so check current availability through our flight-search partners.

The great-circle distance is about 5,215 km, roughly 6.8 hours in the air for a nonstop.

Air Canada, British Airways — as recorded in the reference schedule data.

Search by city (Montréal) to compare every airport serving the metro area in one query — low-cost carriers often use secondary airports with lower fares.

mid-haul routes like this usually settle one to two months out, with late-bookings pricing highest on peak dates. These are booking windows, not rules — fares change constantly, so compare dates in the search above and book when the total, bags included, is right.

The cheapest month depends on the demand calendar at London — school holidays, the Christmas–New Year peak and major local events price highest, and shoulder-season months between them price lowest. Rather than trusting a generic answer, open the fare calendar on the search above: it shows real prices for every date this month and next, so the cheap windows are visible immediately.

Midweek departures — Tuesday to Thursday — commonly price below Friday–Sunday on routes like Montréal → London, because leisure demand concentrates at the weekend. The pattern is not guaranteed on every date, so compare a midweek date against your first-choice day in the search above before locking in.

Heathrow Express to Paddington in 15 min; Elizabeth line across London. The Elizabeth line changed the economics — compare it before defaulting to a taxi. FlyraGo’s London Heathrow Airport airport transfer guide compares fixed-price cars, taxis and public transport for this airport.

It depends on your nationality, not on the route — two travellers on the same Montréal → London flight can face completely different entry rules. Check the destination country’s official immigration site or your foreign-ministry travel advice for your passport, and do it before booking: some destinations require a visa obtained in advance, others issue visas or waivers on arrival.

Whatever the fare you buy includes — baggage is set by the carrier and fare class, not the route, and the carriers on this pair (Air Canada, British Airways) price bags very differently. Low-cost fares usually include cabin bags only and charge per checked bag; full-service fares typically include at least one. Compare totals with your bags added, because a dearer fare with bags included is often cheaper overall.

London has a left-luggage network — the Underground is the constraint: step-free access is patchy, so dragging bags between lines is the error the storage day removes FlyraGo’s London luggage storage page lists the network, with flat daily rates you can book before you fly.