AirHint found the following cheapest return flights from Milan (LIN) to San Jose (SJO) in September 2025 (see full year).

Return flights

18 Sep - 19 Oct	Iberia
18 Sep - 18 Oct	Air France
17 Sep - 18 Oct	Air France
19 Sep - 28 Sep	easyJet
13 Sep - 20 Sep	Air France
19 Sep - 21 Sep	ITA Airways
25 Sep - 30 Sep	United
15 Sep - 25 Oct	easyJet
20 Sep - 28 Sep	ITA Airways
12 Sep - 27 Sep	ITA Airways
13 Sep - 27 Sep	easyJet
30 Sep - 03 Oct	Air France
17 Sep - 28 Sep	easyJet
30 Sep - 14 Oct	Lufthansa
24 Sep - 28 Sep	Iberia
18 Sep - 11 Oct	Lufthansa
23 Sep - 02 Oct	Lufthansa

Also check the deals for one-way flights from Milan to San Jose in September.

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 Milan to San Jose in September from 650€

Return flights