Cheapest return flights from Philadelphia to Dublin in September from $535

AirHint found the following cheapest return flights from Philadelphia (PHL) to Dublin (DUB) in September 2026 (see full year).

Return flights

02 Sep - 15 Sep United
16 Sep - 24 Sep Aer Lingus direct
15 Sep - 23 Sep Aer Lingus direct
10 Sep - 18 Sep Aer Lingus direct
10 Sep - 17 Sep Aer Lingus direct
15 Sep - 28 Sep Finnair
02 Sep - 13 Sep Aer Lingus direct
15 Sep - 28 Sep Aer Lingus direct
20 Sep - 27 Sep Aer Lingus direct
26 Sep - 02 Oct Aer Lingus direct
10 Sep - 13 Sep Aer Lingus direct

Also check the deals for one-way flights from Philadelphia to Dublin in September.

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