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

Return flights

13 Apr - 20 Apr	TAP
20 Apr - 27 Apr	TAP
27 Apr - 04 May	TAP
15 Apr - 22 Apr	TAP
08 Apr - 15 Apr	TAP
12 Apr - 19 Apr	TAP
29 Apr - 06 May	TAP
26 Apr - 03 May	TAP
19 Apr - 26 Apr	TAP
03 Apr - 10 Apr	TAP
05 Apr - 12 Apr	TAP
17 Apr - 24 Apr	TAP
06 Apr - 13 Apr	TAP
24 Apr - 01 May	TAP
23 Apr - 09 May	Air Transat
25 Apr - 02 May	Air Transat
28 Apr - 05 May	Air Transat
30 Apr - 07 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 568€

Return flights