Cheapest return flights from Rotterdam to Brussels in September from $351

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

Return flights

27 Sep - 29 Sep transavia
29 Sep - 05 Oct transavia
22 Sep - 29 Sep transavia
18 Sep - 21 Sep Pegasus Airlines
26 Sep - 03 Oct transavia

Also check the deals for one-way flights from Rotterdam 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.

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