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

Return flights

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

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 240€

Return flights