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

Return flights

09 Sep - 23 Sep	Aer Lingus
03 Sep - 10 Sep	Aer Lingus
24 Sep - 01 Oct	Aer Lingus
26 Sep - 01 Oct	Norse Atlantic Airways (UK)
24 Sep - 30 Sep	Norse Atlantic Airways (UK)
09 Sep - 16 Sep	Air Canada
09 Sep - 17 Sep	Air Canada
12 Sep - 21 Sep	Norse Atlantic Airways (UK)
30 Sep - 07 Oct	Aer Lingus
25 Sep - 04 Oct	Spirit Airlines
26 Sep - 30 Sep	Spirit Airlines
21 Sep - 28 Sep	Aer Lingus
26 Sep - 04 Oct	Norse Atlantic Airways (UK)
25 Sep - 29 Sep	Frontier Airlines
18 Sep - 25 Sep	Aer Lingus
27 Sep - 04 Oct	United

Also check the deals for one-way flights from Orlando to Dublin 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 Orlando to Dublin in September from 419€

Return flights