Cheap flights from Philadelphia to Dublin from $319

In general, January is the cheapest month to fly from Philadelphia to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $540. If you’re not able to fly to Dublin in January, then February is your next best option. Flight prices from Philadelphia to Dublin during February average around $543.

The cheapest day to depart from Philadelphia to Dublin is on a Monday. Travelers who choose to depart for Dublin on a Monday will often find tickets for as low as $683. Flights from Philadelphia to Dublin on a Saturday will generally be more expensive and average around $839. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the afternoon is the cheapest time of day to fly from Philadelphia to Dublin when you can find flight prices for as low as $731. Flying to Dublin in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive with an average ticket price of $743.

Fly from Philadelphia to Dublin for the best Philadelphia - Dublin flight prices

You are more likely to see cheaper flights to Dublin from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $678 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Philadelphia for as low as $587 on momondo.

There are 4 cabin classes available to choose from on Philadelphia to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 23% on your flight if you consider stops on a Philadelphia to Dublin flight.

As of April 2026, prices for Philadelphia to Dublin flights are approximately 40% cheaper when compared to flights at the same time last year.

United Airlines and Delta are the most popular carriers operating from Philadelphia to Dublin

Aer Lingus, United Airlines and American Airlines are the top three most popular airlines that fly to Dublin from Philadelphia according to our data. Aer Lingus is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 17 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.

Toronto (YYZ) was the most common stop: 73% of momondo users choosing 1-stop flights on this route connected there.

Flights via Boston (BOS) offer the lowest average round-trip price of $514.

Flights connecting via Boston (BOS) have the shortest average one-way travel time: 9h 25m.

Boston (BOS) has the shortest average layover time for this route: 2h 01m.

The number of flights available between Philadelphia and Dublin is 8 per day as of April 2026. The most frequent departure time is 6:00PM, with 100% of daily flights leaving in the evening.

The number of flights available between Philadelphia and Dublin is 59 per week as of April 2026. The most frequent departure day is Wed, with 17% of weekly flights leaving on this day.