Cheapest return flights from Philadelphia to Dublin in December from $468

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

Return flights

10 Dec - 17 Dec Iberia direct
07 Dec - 14 Dec Aer Lingus direct
05 Dec - 12 Dec Aer Lingus direct
11 Dec - 19 Dec KLM
30 Dec - 06 Jan United
15 Dec - 22 Dec United
26 Dec - 31 Dec American Airlines
11 Dec - 19 Dec Aer Lingus direct
15 Dec - 22 Dec Aer Lingus direct
20 Dec - 27 Dec United
22 Dec - 02 Jan Delta
22 Dec - 02 Jan Finnair direct

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

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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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