Cheapest return flights from Montreal to San Juan in August from $459

Best time to book flights for Montreal (YUL) to San Juan (SJU) flights at AirHint

AirHint found the following cheapest return flights from Montreal (YUL) to San Juan (SJU) in August 2025 (see full year).

Return flights

29 Aug - 05 Sep United
02 Aug - 09 Aug WestJet
01 Aug - 08 Aug WestJet
23 Aug - 30 Aug WestJet
27 Aug - 03 Sep WestJet
18 Aug - 25 Aug WestJet
15 Aug - 22 Aug WestJet
19 Aug - 26 Aug WestJet
21 Aug - 28 Aug WestJet
09 Aug - 16 Aug United
14 Aug - 21 Aug United
13 Aug - 20 Aug United
28 Aug - 04 Sep United
31 Aug - 07 Sep United
25 Aug - 01 Sep United

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

Skyscanner

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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