AirHint found the following cheapest return flights from Cardiff (CWL) to Dalaman (DLM) in September 2025 (see full year).

Return flights

10 Sep - 18 Sep	TUI	direct
10 Sep - 17 Sep	TUI	direct
13 Sep - 20 Sep	Ryanair
15 Sep - 22 Sep	Ryanair
26 Sep - 03 Oct	Ryanair
10 Sep - 24 Sep	TUI	direct
29 Sep - 06 Oct	Ryanair
25 Sep - 02 Oct	TUI	direct
25 Sep - 02 Oct	Ryanair
25 Sep - 09 Oct	Ryanair
28 Sep - 05 Oct	Aer Lingus
15 Sep - 22 Sep	TUI	direct
22 Sep - 29 Sep	TUI	direct
25 Sep - 09 Oct	TUI	direct
29 Sep - 06 Oct	TUI	direct

Also check the deals for one-way flights from Cardiff to Dalaman 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 Cardiff to Dalaman in September from $293

Return flights