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

Return flights

08 May - 12 May	Viva
08 May - 16 May	Viva
11 May - 16 May	Viva
26 May - 02 Jun	Volaris Costa Rica
07 May - 14 May	Aeromexico
08 May - 15 May	Aeromexico
07 May - 11 May	Aeromexico
25 May - 01 Jun	Volaris
25 May - 31 May	Volaris
24 May - 31 May	Aeromexico
10 May - 24 May	Aeromexico
29 May - 31 May	Copa
26 May - 02 Jun	Volaris Costa Rica	direct

Also check the deals for one-way flights from Guadalajara 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 Guadalajara to San Jose in May from $223

Return flights