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

Return flights

05 Apr - 14 Apr	Iberia	direct
22 Apr - 06 May	Iberia	direct
01 Apr - 08 Apr	American Airlines
14 Apr - 21 Apr	United
21 Apr - 28 Apr	United
21 Apr - 28 Apr	Aer Lingus	direct
28 Apr - 05 May	Aer Lingus	direct
14 Apr - 21 Apr	Finnair	direct
28 Apr - 11 May	American Airlines
08 Apr - 15 Apr	Aer Lingus	direct
13 Apr - 20 Apr	Aer Lingus	direct
23 Apr - 30 Apr	Aer Lingus	direct
01 Apr - 08 Apr	Aer Lingus	direct

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

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 April from $439

Return flights