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

Return flights

19 Sep - 21 Sep	Spirit Airlines
12 Sep - 27 Sep	Spirit Airlines
07 Sep - 21 Sep	Spirit Airlines
24 Sep - 27 Sep	Spirit Airlines
01 Sep - 07 Sep	Icelandair
08 Sep - 24 Sep	Aer Lingus	direct
03 Sep - 09 Sep	Air Canada
10 Sep - 17 Sep	Air Canada
24 Sep - 30 Sep	Norse Atlantic Airways (UK)
01 Sep - 01 Oct	Air France
27 Sep - 30 Sep	Norse Atlantic Airways (UK)
25 Sep - 18 Oct	Frontier Airlines
29 Sep - 06 Oct	Aer Lingus	direct
27 Sep - 04 Oct	United
27 Sep - 04 Oct	Aer Lingus	direct
25 Sep - 02 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 $431

Return flights