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

Return flights

14 Jan - 21 Jan	American Airlines
12 Jan - 22 Jan	British Airways
27 Jan - 20 Feb	Finnair
28 Jan - 20 Feb	Finnair
26 Jan - 20 Feb	Finnair
12 Jan - 22 Jan	Finnair	direct
27 Jan - 20 Feb	Iberia	direct
28 Jan - 20 Feb	Iberia	direct
08 Jan - 15 Jan	Frontier Airlines
06 Jan - 13 Jan	United
26 Jan - 20 Feb	Finnair	direct
12 Jan - 19 Jan	American Airlines
26 Jan - 21 Feb	Finnair
27 Jan - 21 Feb	Finnair
08 Jan - 15 Jan	American Airlines	direct
27 Jan - 21 Feb	Iberia	direct
08 Jan - 12 Jan	Air Canada
08 Jan - 12 Jan	Iberia	direct
28 Jan - 04 Feb	Aer Lingus
09 Jan - 17 Jan	Air Canada

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 475€

Return flights