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

Return flights

10 Jan - 17 Jan	Air Canada
01 Jan - 08 Jan	Aer Lingus	direct
21 Jan - 28 Jan	Aer Lingus	direct
16 Jan - 23 Jan	Aer Lingus	direct
26 Jan - 02 Feb	Aer Lingus	direct
10 Jan - 17 Jan	Aer Lingus	direct
31 Jan - 07 Feb	Aer Lingus	direct
09 Jan - 12 Jan	Aer Lingus	direct

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

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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Cheapest return flights from Philadelphia to Dublin in January from $526

Return flights