Cheapest one-way PHL–DUB flights, September

AirHint found the following cheapest one-way flights from Philadelphia (PHL) to Dublin (DUB) in September 2026 (see full year).

One-Way flights

09 Sep Lufthansa
06 Sep Austrian Airlines
28 Sep Frontier Airlines
13 Sep Austrian Airlines
12 Sep Frontier Airlines
20 Sep Lufthansa
04 Sep Frontier Airlines
11 Sep Frontier Airlines
09 Sep Aer Lingus direct
29 Sep Aer Lingus

Also check the deals for return flights from Philadelphia to Dublin in September.

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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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