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

Return flights

23 Oct - 27 Oct	Scandinavian Airlines
21 Oct - 15 Nov	Scandinavian Airlines
09 Oct - 22 Oct	Scandinavian Airlines
22 Oct - 26 Oct	Scandinavian Airlines
25 Oct - 01 Nov	Scandinavian Airlines
08 Oct - 01 Nov	Scandinavian Airlines
18 Oct - 22 Oct	Frontier Airlines
07 Oct - 09 Oct	Spirit Airlines
06 Oct - 09 Oct	Spirit Airlines
07 Oct - 10 Oct	Spirit Airlines
09 Oct - 22 Oct	Air France	direct
18 Oct - 22 Oct	Air France	direct
07 Oct - 10 Oct	Air France	direct

Also check the deals for one-way flights from Atlanta 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 Atlanta to Brussels in October from 453€

Return flights