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

Return flights

01 Jul - 05 Jul	Finnair	direct
01 Jul - 06 Jul	Finnair	direct
22 Jul - 26 Jul	jetBlue
29 Jul - 05 Aug	jetBlue
23 Jul - 27 Jul	Air Canada
08 Jul - 21 Jul	Air Canada
17 Jul - 28 Jul	Air Canada
15 Jul - 22 Jul	Air Canada
16 Jul - 22 Jul	Air Canada
02 Jul - 09 Jul	Air Canada
06 Jul - 16 Jul	Air Canada
29 Jul - 06 Aug	Air Canada
30 Jul - 06 Aug	Air Canada
20 Jul - 01 Aug	Lufthansa
31 Jul - 06 Aug	Air Canada
24 Jul - 02 Aug	United
01 Jul - 27 Aug	Finnair	direct
30 Jul - 03 Aug	Finnair	direct
29 Jul - 05 Aug	Finnair	direct
29 Jul - 06 Aug	Finnair	direct

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

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 July from 609€

Return flights