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 - 19 May	Viva
08 May - 19 May	Viva
07 May - 19 May	Viva
04 May - 16 May	Viva
08 May - 16 May	Viva
07 May - 16 May	Viva
02 May - 09 May	Avianca
04 May - 23 May	Viva
08 May - 23 May	Viva
17 May - 23 May	Viva
24 May - 02 Jun	Avianca
28 May - 02 Jun	Avianca
29 May - 02 Jun	Avianca
17 May - 02 Jun	Viva
22 May - 02 Jun	Viva
24 May - 02 Jun	Aeromexico	direct
29 May - 02 Jun	Avianca	direct
28 May - 02 Jun	Avianca	direct
26 May - 25 Jun	Avianca	direct
28 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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Cheapest return flights from Mexico City to San Jose in May from 164€

Return flights