AirHint found the following cheapest return flights from Lisbon (LIS) to San Jose (SJO) in January 2026 (see full year).

Return flights

13 Jan - 22 Jan	Vueling Airlines
18 Jan - 25 Jan	United
21 Jan - 30 Jan	United
18 Jan - 06 Feb	United
26 Jan - 10 Feb	Lufthansa
22 Jan - 07 Feb	United
29 Jan - 14 Feb	United
23 Jan - 01 Feb	United
16 Jan - 01 Feb	United
18 Jan - 30 Jan	United
23 Jan - 31 Jan	United
17 Jan - 31 Jan	United
17 Jan - 30 Jan	United
13 Jan - 03 Feb	United
17 Jan - 01 Feb	United
13 Jan - 16 Feb	United
24 Jan - 07 Feb	easyJet
02 Jan - 11 Jan	Vueling Airlines

Also check the deals for one-way flights from Lisbon to San Jose in January.

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 Lisbon to San Jose in January from $755

Return flights