Cheapest return flights from Brussels to Dublin in September from $48

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

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

Return flights

10 Sep - 18 Sep Ryanair direct
12 Sep - 18 Sep Ryanair direct
15 Sep - 18 Sep Ryanair direct
10 Sep - 01 Oct Ryanair direct
12 Sep - 01 Oct Ryanair direct
15 Sep - 01 Oct Ryanair direct
10 Sep - 25 Sep Ryanair direct
12 Sep - 25 Sep Ryanair direct
10 Sep - 21 Sep Ryanair direct
01 Sep - 18 Sep Ryanair direct
12 Sep - 21 Sep Ryanair direct
15 Sep - 25 Sep Ryanair direct
15 Sep - 05 Oct Ryanair direct
10 Sep - 23 Sep Ryanair direct
27 Sep - 01 Oct Ryanair direct
15 Sep - 04 Oct Ryanair direct
27 Sep - 05 Oct Ryanair direct
27 Sep - 09 Oct Ryanair direct
27 Sep - 04 Oct Ryanair direct
18 Sep - 01 Oct Ryanair direct

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

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