Cheapest return flights from Montreal to San Juan in October from $321

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 October 2025 (see full year).

Return flights

14 Oct - 21 Oct United
28 Oct - 04 Nov United
07 Oct - 14 Oct United
08 Oct - 15 Oct United
31 Oct - 07 Nov Air Canada
18 Oct - 25 Oct United
04 Oct - 11 Oct United
24 Oct - 31 Oct United
16 Oct - 23 Oct United
23 Oct - 30 Oct WestJet
26 Oct - 02 Nov WestJet
29 Oct - 05 Nov WestJet
09 Oct - 16 Oct WestJet
13 Oct - 20 Oct WestJet
30 Oct - 06 Nov United

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

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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