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

Return flights

18 Jun - 25 Jun	WestJet
09 Jun - 16 Jun	WestJet
16 Jun - 23 Jun	WestJet
10 Jun - 17 Jun	WestJet
12 Jun - 19 Jun	WestJet
05 Jun - 12 Jun	WestJet
13 Jun - 20 Jun	WestJet
17 Jun - 24 Jun	WestJet
19 Jun - 26 Jun	WestJet
20 Jun - 27 Jun	WestJet
27 Jun - 04 Jul	Air Canada
25 Jun - 02 Jul	Air Canada
28 Jun - 05 Jul	Avianca
24 Jun - 01 Jul	United
29 Jun - 06 Jul	United
26 Jun - 03 Jul	United

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.

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Cheapest return flights from Montreal to San Juan in June from 505€

Return flights