AirHint found the following cheapest return flights from Montreal (YUL) to London (LGW) in April 2026 (see full year).

Return flights

13 Apr - 22 Apr	TAP
13 Apr - 13 May	TAP
20 Apr - 12 May	TAP
13 Apr - 21 Apr	TAP
13 Apr - 20 Apr	TAP
15 Apr - 22 Apr	TAP
01 Apr - 08 Apr	Air Transat
04 Apr - 11 Apr	Air Transat
05 Apr - 12 Apr	Air Transat
01 Apr - 05 Apr	Air Transat
06 Apr - 30 Apr	TAP
13 Apr - 19 Apr	TAP
29 Apr - 20 May	TAP
27 Apr - 04 May	TAP
26 Apr - 03 May	TAP
22 Apr - 04 May	TAP
23 Apr - 15 May	Air Transat
24 Apr - 04 May	Air Transat
14 Apr - 08 May	Air Transat
28 Apr - 19 May	Air Transat

Also check the deals for one-way flights from Montreal to London in April.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Montreal to London in April from $485

Return flights