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

Return flights

02 Jun - 09 Jun	United
01 Jun - 08 Jun	United
04 Jun - 11 Jun	United
06 Jun - 13 Jun	United
10 Jun - 17 Jun	WestJet
07 Jun - 14 Jun	WestJet
12 Jun - 19 Jun	United
16 Jun - 23 Jun	United
17 Jun - 24 Jun	United
20 Jun - 27 Jun	United
24 Jun - 01 Jul	Air Canada
25 Jun - 02 Jul	Air Canada

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

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

Cheapest return flights from Montreal to San Juan in June from $439

Return flights