Cheap Flights from London to Montreal
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Deals from
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RatePunk searches hundreds of travel sites at once for deals on flights to Montreal
Prices updated today
485 airlines compared
80%+ AI score for best value
Fares are subject to change and may not be available for all dates. (Data last updated Nov 2, 2026.)
Today’s best flight deals from London to Montreal
Explore current cheapest deals departing from London to Montreal
2027-03-08 – 2027-03-22
LON - Montreal
75% AI deal score
£428
£413
Round trip
2027-01-11 – 2027-01-18
LON - Montreal
73% AI deal score
£359
£414
Round trip
2026-11-05 – 2026-11-22
LON - Montreal
78% AI deal score
£486
£414
Round trip
2027-03-15 – 2027-03-22
LON - Montreal
76% AI deal score
£435
£414
Round trip
2026-11-18 – 2026-11-27
LON - Montreal
74% AI deal score
£404
£416
Round trip
2027-01-15 – 2027-01-29
LON - Montreal
73% AI deal score
£349
£417
Round trip
2027-01-18 – 2027-01-29
LON - Montreal
73% AI deal score
£348
£418
Round trip
2027-04-09 – 2027-04-28
LON - Montreal
74% AI deal score
£410
£420
Round trip
2027-04-14 – 2027-04-28
LON - Montreal
74% AI deal score
£422
£420
Round trip
2027-04-14 – 2027-04-30
LON - Montreal
74% AI deal score
£419
£420
Round trip