AirHint found the following cheapest return flights from Mexico City (MEX) to San Jose (SJO) in May 2026 (see full year).

Return flights

04 May - 09 May	Viva
11 May - 26 May	Viva
04 May - 12 May	Viva
08 May - 20 May	Avianca
29 May - 31 May	Avianca
04 May - 15 May	Avianca
08 May - 15 May	Avianca
18 May - 23 May	Avianca	direct
24 May - 02 Jun	Avianca	direct
03 May - 09 May	Avianca
13 May - 20 May	Avianca
29 May - 02 Jun	Viva
22 May - 02 Jun	Viva
29 May - 16 Jun	Viva
29 May - 09 Jun	Viva
22 May - 09 Jun	Viva
24 May - 09 Jun	Viva

Also check the deals for one-way flights from Mexico City to San Jose in May.

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 Mexico City to San Jose in May from 171€

Return flights