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

Return flights

21 Apr - 28 Apr	Aer Lingus	direct
09 Apr - 17 Apr	Iberia	direct
08 Apr - 12 Apr	Iberia	direct
12 Apr - 19 Apr	Iberia	direct
10 Apr - 17 Apr	American Airlines
16 Apr - 23 Apr	Aer Lingus	direct
11 Apr - 02 May	Air Canada
10 Apr - 17 Apr	Iberia	direct
16 Apr - 25 Apr	Iberia	direct
11 Apr - 02 May	Iberia	direct
22 Apr - 16 May	Iberia	direct
01 Apr - 08 Apr	Aer Lingus	direct
06 Apr - 13 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 $473

Return flights