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

Return flights

25 Apr - 06 May	United
25 Apr - 07 May	United
25 Apr - 30 Apr	United
20 Apr - 06 May	United
24 Apr - 07 May	United
20 Apr - 07 May	United
24 Apr - 06 May	United
24 Apr - 17 May	Arajet
24 Apr - 30 Apr	United
20 Apr - 30 Apr	United
25 Apr - 13 May	United
25 Apr - 27 May	United
01 Apr - 05 Apr	Arajet
24 Apr - 03 May	Arajet
23 Apr - 30 Apr	United
25 Apr - 29 Apr	United
08 Apr - 15 Apr	United
21 Apr - 28 Apr	United
25 Apr - 28 Apr	United
24 Apr - 29 Apr	United

Also check the deals for one-way flights from Montreal to San Juan 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 San Juan in April from 223€

Return flights