Cheap flights from Ireland to Pennsylvania from £277

In general, March is the cheapest month to fly from Ireland to Pennsylvania. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £235. If you don’t want to visit Pennsylvania in March, then you should wait until April to fly from Ireland, when ticket prices are also cheap, with an average price of £238.

According to our data, Monday is the cheapest day to fly to Pennsylvania from Ireland. The lowest ticket price found for a Monday departure recently was £474. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Pennsylvania is Sunday, with ticket prices averaging around £521.

Flying to Pennsylvania from Ireland in the morning is the least expensive time of day to depart. momondo users have found prices as low as £498 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to Pennsylvania is at midday when prices are around £527.

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

You are more likely to see cheaper flights to Pennsylvania from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Pennsylvania for around £445 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Pennsylvania from Ireland for as low as £365 on momondo.

JetBlue, TAP AIR PORTUGAL, and Finnair are the most popular carriers operating from Ireland to Pennsylvania

Aer Lingus, Finnair and Iberia are the top three most popular airlines that fly to Pennsylvania from Ireland according to our data. Aer Lingus is the first choice among our users, with 40% of people opting to fly with this airline when travelling to Pennsylvania. Keep in mind that there are 7 different airlines that fly to Pennsylvania on a routine basis, so you have a few additional options to choose from.

As of May 2026, 58 flights take off from Ireland and land in Pennsylvania each day. The most common flight departure time for this route is 13:00, with 100% of daily flights taking off in the afternoon.

As of May 2026, there are 409 flights per week flying from Ireland to Pennsylvania. The most common day of the week flights depart is Mon, with 16% of flights taking off on this day.