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

Return flights

10 Apr - 26 Apr	Arajet
22 Apr - 26 Apr	Arajet
17 Apr - 26 Apr	Arajet
01 Apr - 05 Apr	Arajet
14 Apr - 21 Apr	United
15 Apr - 22 Apr	United
28 Apr - 12 May	United
25 Apr - 02 May	United
03 Apr - 12 Apr	Arajet
12 Apr - 19 Apr	Air Transat
30 Apr - 07 May	United
24 Apr - 01 May	United
08 Apr - 15 Apr	United
22 Apr - 29 Apr	United
28 Apr - 05 May	United
29 Apr - 06 May	United
26 Apr - 03 May	Porter Airlines (Canada) Ltd
27 Apr - 04 May	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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Cheapest return flights from Montreal to San Juan in April from 176€

Return flights