Cheapest return flights from Montreal to San Juan in August from $434

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

Return flights

30 Aug - 06 Sep Porter Airlines (Canada) Ltd
26 Aug - 02 Sep Arajet
04 Aug - 11 Aug United
13 Aug - 18 Aug American Airlines
19 Aug - 26 Aug Arajet
12 Aug - 19 Aug Arajet
22 Aug - 29 Aug Arajet
18 Aug - 25 Aug Porter Airlines (Canada) Ltd
21 Aug - 29 Aug Arajet
15 Aug - 22 Aug Arajet
21 Aug - 28 Aug Arajet
11 Aug - 18 Aug Porter Airlines (Canada) Ltd
25 Aug - 01 Sep Porter Airlines (Canada) Ltd
29 Aug - 05 Sep WestJet
28 Aug - 04 Sep WestJet
27 Aug - 03 Sep WestJet

Also check the deals for one-way flights from Montreal to San Juan in August.

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