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

Return flights

17 Oct - 20 Oct	Ryanair
10 Oct - 14 Oct	Ryanair
16 Oct - 18 Oct	Ryanair
06 Oct - 10 Oct	Ryanair
11 Oct - 14 Oct	Ryanair
07 Oct - 11 Oct	Ryanair
19 Oct - 23 Oct	Ryanair
18 Oct - 22 Oct	Ryanair
05 Oct - 12 Oct	Aegean Airlines
22 Oct - 26 Oct	SWISS
21 Oct - 04 Nov	TUI fly Belgium
21 Oct - 11 Nov	TUI fly Belgium
14 Oct - 04 Nov	SKY express
16 Oct - 04 Nov	SKY express
17 Oct - 04 Nov	SKY express
20 Oct - 04 Nov	SKY express
22 Oct - 04 Nov	SKY express
22 Oct - 12 Nov	SKY express
15 Oct - 04 Nov	SKY express
18 Oct - 04 Nov	SKY express

Also check the deals for one-way flights from Kos to Brussels 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 Kos to Brussels in October from 135€

Return flights