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

Return flights

02 Apr - 05 Apr	Finnair	direct
15 Apr - 22 Apr	Finnair	direct
08 Apr - 14 Apr	Delta
08 Apr - 13 Apr	Delta
15 Apr - 20 Apr	Air France
06 Apr - 13 Apr	Air France
03 Apr - 12 Apr	Air France
27 Apr - 03 May	Delta
27 Apr - 04 May	Delta
27 Apr - 05 May	Delta
27 Apr - 06 May	Delta
27 Apr - 07 May	Delta
22 Apr - 26 Apr	Delta
01 Apr - 11 Apr	Delta
27 Apr - 30 Apr	Aer Lingus	direct
27 Apr - 03 May	Finnair	direct
27 Apr - 07 May	Finnair	direct
27 Apr - 04 May	Finnair	direct
27 Apr - 06 May	Finnair	direct
27 Apr - 05 May	Finnair	direct

Also check the deals for one-way flights from Dublin to Philadelphia 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 Dublin to Philadelphia in April from 330€

Return flights