AirHint found the following cheapest return flights from London (LCY) to Dubrovnik (DBV) in September 2025 (see full year).

Return flights

02 Sep - 09 Sep	SWISS
09 Sep - 16 Sep	SWISS
30 Sep - 07 Oct	SWISS
27 Sep - 30 Sep	SWISS
13 Sep - 16 Sep	SWISS
06 Sep - 09 Sep	SWISS
02 Sep - 11 Sep	SWISS
01 Sep - 10 Sep	ITA Airways
09 Sep - 12 Sep	ITA Airways
06 Sep - 11 Sep	SWISS
11 Sep - 16 Sep	SWISS
26 Sep - 03 Oct	KLM
25 Sep - 01 Oct	KLM
28 Sep - 01 Oct	KLM
24 Sep - 08 Oct	Lufthansa
24 Sep - 01 Oct	Lufthansa
28 Sep - 05 Oct	KLM

Also check the deals for one-way flights from London to Dubrovnik 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 London to Dubrovnik in September from $239

Return flights