Cheapest return flights from Montreal to San Juan in September from 236€

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 September 2025 (see full year).

Return flights

27 Sep - 30 Sep United
27 Sep - 04 Oct United
27 Sep - 16 Oct United
20 Sep - 23 Sep United
20 Sep - 27 Sep United
20 Sep - 30 Sep United
20 Sep - 01 Oct United
20 Sep - 03 Oct United
30 Sep - 07 Oct United
23 Sep - 30 Sep United
09 Sep - 16 Sep United
05 Sep - 12 Sep United
02 Sep - 09 Sep United
13 Sep - 20 Sep United
24 Sep - 01 Oct United
04 Sep - 11 Sep United
25 Sep - 02 Oct United
26 Sep - 03 Oct United
29 Sep - 06 Oct WestJet

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

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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