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

Return flights

21 Apr - 28 Apr	jetBlue
07 Apr - 14 Apr	KLM
01 Apr - 07 Apr	Delta
01 Apr - 06 Apr	Delta
09 Apr - 13 Apr	Delta
30 Apr - 05 May	Delta
30 Apr - 07 May	Delta
23 Apr - 30 Apr	Delta
02 Apr - 08 Apr	KLM
08 Apr - 12 Apr	Delta
07 Apr - 12 Apr	Delta
23 Apr - 26 Apr	Delta
28 Apr - 09 May	Delta
28 Apr - 09 May	Finnair	direct
30 Apr - 05 May	Finnair	direct
30 Apr - 07 May	Finnair	direct
28 Apr - 02 May	Iberia	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 384€

Return flights