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

Return flights

28 Sep - 28 Oct	China Eastern
28 Sep - 13 Oct	China Eastern
30 Sep - 12 Oct	VietJet Air
27 Sep - 15 Oct	Qantas
30 Sep - 10 Oct	VietJet Air
22 Sep - 06 Oct	Thai Airways
17 Sep - 22 Oct	Jetstar
16 Sep - 22 Oct	Jetstar
24 Sep - 06 Oct	Thai Airways
23 Sep - 07 Oct	Sichuan Airlines
17 Sep - 21 Sep	AirAsia X
25 Sep - 29 Sep	Jetstar
18 Sep - 29 Sep	Jetstar
20 Sep - 27 Sep	Jetstar
20 Sep - 30 Sep	Jetstar
16 Sep - 23 Sep	Virgin Australia
22 Sep - 29 Sep	Turkish Airlines
23 Sep - 28 Sep	Qantas
19 Sep - 27 Sep	Emirates
25 Sep - 28 Sep	Qatar Airways

Also check the deals for one-way flights from Melbourne 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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Cheapest return flights from Melbourne to Dublin in September from $1062

Return flights