Cheapest return flights from Dublin to Brussels in September from 66€

Best time to book flights for Dublin (DUB) to Brussels (BRU) flights at AirHint

AirHint found the following cheapest return flights from Dublin (DUB) to Brussels (BRU) in September 2025 (see full year).

Return flights

02 Sep - 23 Sep Ryanair direct
23 Sep - 12 Oct Ryanair direct
23 Sep - 24 Sep Ryanair direct
23 Sep - 23 Sep Ryanair direct
02 Sep - 10 Sep Ryanair direct
02 Sep - 17 Sep Ryanair direct
02 Sep - 04 Sep Ryanair direct
02 Sep - 18 Sep Ryanair direct
03 Sep - 23 Sep Ryanair direct
23 Sep - 13 Oct Ryanair direct
23 Sep - 02 Oct Ryanair direct
23 Sep - 05 Oct Ryanair direct
02 Sep - 11 Sep Ryanair direct
03 Sep - 10 Sep Ryanair direct
22 Sep - 12 Oct Ryanair direct
27 Sep - 12 Oct Ryanair direct
26 Sep - 12 Oct Ryanair direct
22 Sep - 19 Oct Ryanair direct
22 Sep - 13 Oct Ryanair direct
22 Sep - 02 Oct Ryanair direct

Also check the deals for one-way flights from Dublin to Brussels in September.

Skyscanner

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.

Book a cheap hotel in Brussels

Cheap car rent in Brussels