Cheapest return flights from Philadelphia to Dublin in September from $540

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 Aer Lingus direct
02 Sep - 09 Sep Finnair direct
02 Sep - 09 Sep Finnair
08 Sep - 15 Sep British Airways
08 Sep - 15 Sep Iberia direct
04 Sep - 13 Sep Finnair direct
16 Sep - 05 Oct jetBlue
16 Sep - 05 Oct Finnair direct
18 Sep - 25 Sep United
28 Sep - 05 Oct United

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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