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

Return flights

22 Jan - 27 Jan	Finnair	direct
24 Jan - 31 Jan	Iberia	direct
24 Jan - 25 Jan	Finnair	direct
31 Jan - 04 Feb	Finnair	direct
26 Jan - 02 Feb	Finnair	direct
31 Jan - 07 Feb	Finnair	direct
21 Jan - 28 Jan	Ryanair
20 Jan - 27 Jan	British Airways
20 Jan - 26 Jan	Delta
20 Jan - 26 Jan	Finnair	direct
20 Jan - 27 Jan	Iberia	direct
21 Jan - 28 Jan	Finnair	direct
21 Jan - 24 Jan	KLM

Also check the deals for one-way flights from Dublin to Philadelphia 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 Dublin to Philadelphia in January from 357€

Return flights