Cheap flights from Montreal to London
From 506 USD — compare hundreds of airlines
Direct flightsCheapest: 2026-07 · 311 US$
Prices by date
311 US$
06/07
318 US$
07/07
319 US$
08/07
319 US$
09/07
319 US$
10/07
Airlines on this route
FAQ
What's the cheapest month to fly Montreal to London?
Usually 2026-07, from 311 USD.
Are there direct flights from Montreal to London?
We show both direct and connecting options — filter to compare.