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

Return flights

25 Mar - 10 Apr	Avianca
09 Mar - 16 Mar	Avianca
11 Mar - 18 Mar	Avianca
13 Mar - 20 Mar	Avianca
15 Mar - 22 Mar	Avianca
18 Mar - 25 Mar	Avianca
02 Mar - 16 Mar	Avianca
08 Mar - 15 Mar	Avianca
16 Mar - 23 Mar	Avianca
23 Mar - 12 Apr	Avianca
04 Mar - 11 Mar	Avianca
06 Mar - 13 Mar	Avianca
25 Mar - 13 Apr	Avianca
25 Mar - 01 Apr	Copa
30 Mar - 06 Apr	Copa
24 Mar - 13 Apr	Copa
26 Mar - 02 Apr	Copa
28 Mar - 04 Apr	Air Transat
24 Mar - 09 Apr	Air Transat
27 Mar - 04 Apr	Avianca

Also check the deals for one-way flights from Montreal to San Jose 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 Jose in March from $349

Return flights