Cheap flights from Ireland to Pennsylvania from £285

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 £348. If you don’t want to visit Pennsylvania in March, then you should wait until May to fly from Ireland, when ticket prices are also cheap, with an average price of £419.

According to our data, Sunday is the cheapest day to fly to Pennsylvania from Ireland. The lowest ticket price found for a Sunday departure recently was £463. 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 Friday, with ticket prices averaging around £566.

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 £502 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to Pennsylvania is in the afternoon when prices are around £643.

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 £479 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 £376 on momondo.

There are 3 cabin classes available to choose from on Ireland to Pennsylvania flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta, KLM, and British Airways 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 44% of people opting to fly with this airline when travelling to Pennsylvania. Keep in mind that there are 6 different airlines that fly to Pennsylvania on a routine basis, so you have a few additional options to choose from.

As of September 2026, 12 flights take off from Ireland and land in Pennsylvania each day. The most common flight departure time for this route is 09:00, with 59% of daily flights taking off in the afternoon.

As of September 2026, there are 86 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.