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

Return flights

10 Mar - 17 Mar	United
04 Mar - 11 Mar	United
17 Mar - 24 Mar	United
29 Mar - 05 Apr	Air Transat	direct
16 Mar - 23 Mar	United
24 Mar - 31 Mar	United
31 Mar - 07 Apr	United
01 Mar - 07 Mar	United
22 Mar - 29 Mar	Air Transat	direct
11 Mar - 18 Mar	United
05 Mar - 12 Mar	United
07 Mar - 14 Mar	Air Canada
27 Mar - 03 Apr	WestJet
28 Mar - 04 Apr	WestJet
26 Mar - 02 Apr	WestJet
30 Mar - 06 Apr	United

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

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 March from 267€

Return flights