Cheapest return flights from Montreal to San Juan in August from $491

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

05 Aug - 12 Aug Air Transat
19 Aug - 26 Aug United
11 Aug - 18 Aug Air Transat
14 Aug - 26 Aug WestJet
02 Aug - 09 Aug WestJet
07 Aug - 14 Aug WestJet
08 Aug - 15 Aug WestJet
14 Aug - 21 Aug WestJet
21 Aug - 28 Aug WestJet
20 Aug - 27 Aug WestJet
30 Aug - 06 Sep WestJet
29 Aug - 05 Sep WestJet
26 Aug - 02 Sep United
25 Aug - 01 Sep WestJet

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan