AirHint found the following cheapest return flights from Brussels (BRU) to San Jose (SJO) in October 2025 (see full year).

Return flights

22 Oct - 05 Nov	Air Canada
26 Oct - 10 Nov	Air Canada
29 Oct - 09 Nov	SWISS
15 Oct - 20 Oct	United
16 Oct - 24 Oct	United
16 Oct - 27 Oct	United
28 Oct - 17 Nov	United
14 Oct - 26 Oct	United
31 Oct - 15 Nov	Air Canada
06 Oct - 10 Oct	Air Canada
06 Oct - 27 Oct	Air Canada
08 Oct - 13 Oct	United
06 Oct - 16 Oct	United
02 Oct - 12 Oct	Ryanair
02 Oct - 14 Oct	Ryanair
24 Oct - 02 Nov	United
19 Oct - 01 Nov	United
10 Oct - 20 Nov	SWISS

Also check the deals for one-way flights from Brussels to San Jose in October.

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 Brussels to San Jose in October from 474€

Return flights