Cheapest return PHL–DUB flights, September

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

Return flights

09 Sep - 17 Sep Air Canada
09 Sep - 17 Sep Aer Lingus direct
08 Sep - 16 Sep Finnair
29 Sep - 13 Oct Aer Lingus direct
29 Sep - 06 Oct Aer Lingus direct
15 Sep - 25 Sep Finnair direct
01 Sep - 08 Sep Aer Lingus direct
09 Sep - 16 Sep Aer Lingus direct
22 Sep - 29 Sep Aer Lingus direct
23 Sep - 30 Sep Aer Lingus direct
15 Sep - 22 Sep Aer Lingus direct
16 Sep - 23 Sep Aer Lingus direct
29 Sep - 08 Oct Finnair direct
24 Sep - 01 Oct Aer Lingus direct
28 Sep - 05 Oct Aer Lingus direct
27 Sep - 04 Oct Aer Lingus direct
19 Sep - 03 Oct Air Canada
25 Sep - 02 Oct Aer Lingus direct
19 Sep - 03 Oct Aer Lingus direct
26 Sep - 03 Oct Aer Lingus direct

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

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