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

Return flights

30 Sep - 02 Oct	transavia
30 Sep - 02 Oct	transavia	direct
29 Sep - 02 Oct	transavia
29 Sep - 14 Oct	transavia
25 Sep - 01 Oct	transavia
17 Sep - 25 Sep	transavia
29 Sep - 30 Sep	transavia
28 Sep - 02 Oct	transavia
29 Sep - 04 Oct	transavia
26 Sep - 02 Oct	transavia
30 Sep - 05 Oct	transavia
23 Sep - 24 Sep	transavia
30 Sep - 05 Oct	transavia	direct
25 Sep - 26 Sep	transavia
18 Sep - 19 Sep	transavia	direct
26 Sep - 30 Sep	transavia
23 Sep - 26 Sep	transavia
25 Sep - 27 Sep	transavia
23 Sep - 27 Sep	transavia
21 Sep - 28 Sep	transavia

Also check the deals for one-way flights from Rotterdam to Rome in September.

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 Rotterdam to Rome in September from 172€

Return flights