Cheapest return flights from Philadelphia to Dublin in September from $507

Best time to book flights for Philadelphia (PHL) to Dublin (DUB) flights at AirHint

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

Return flights

02 Sep - 16 Sep United
09 Sep - 23 Sep United
02 Sep - 09 Sep United
10 Sep - 17 Sep United
09 Sep - 23 Sep Finnair direct
02 Sep - 09 Sep Finnair direct
02 Sep - 08 Sep Air Canada
30 Sep - 07 Oct United
30 Sep - 07 Oct Finnair direct
05 Sep - 12 Sep United
30 Sep - 06 Oct Air Canada
25 Sep - 02 Oct British Airways
02 Sep - 08 Sep Finnair direct
20 Sep - 27 Sep United
25 Sep - 02 Oct Iberia direct
30 Sep - 06 Oct Aer Lingus direct

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

Skyscanner

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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