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

Return flights

15 Sep - 22 Sep	TAP
08 Sep - 15 Sep	TAP
19 Sep - 27 Sep	TAP
28 Sep - 05 Oct	TAP
22 Sep - 29 Sep	TAP
09 Sep - 17 Sep	TAP
18 Sep - 27 Sep	TAP
18 Sep - 25 Sep	TAP
11 Sep - 02 Oct	TAP
10 Sep - 26 Sep	Ryanair
22 Sep - 30 Sep	Ryanair
25 Sep - 28 Sep	Ryanair
27 Sep - 04 Oct	TAP
26 Sep - 11 Oct	Ryanair
25 Sep - 03 Oct	Lufthansa
27 Sep - 12 Oct	Lufthansa

Also check the deals for one-way flights from Dublin to Miami 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 Dublin to Miami in September from $396

Return flights