€185 Find Cheap Flights from Philadelphia to Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Ireland departing on 6/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Best Ireland Flight Deals from Philadelphia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin2 stops€429
Cork
Cork1 stop€388
Shannon
Shannon1 stop€423
Milltown (Kerry)
Milltown (Kerry)3 stops€1,185
Dublin
Dublin2 stops€429
Cork
Cork1 stop€388
Shannon
Shannon1 stop€423
Milltown (Kerry)
Milltown (Kerry)3 stops€1,185

Cheap Flights from Philadelphia to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Philadelphia to Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Philadelphia to Ireland

Tue, 28 Oct - Tue, 4 Nov
American Airlines Logo
19:35 - 11:10PHL-ORK
11h 35m1 stop
American Airlines Logo
07:40 - 16:15ORK-PHL
13h 35m1 stop
€388American Airlines
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Tue, 28 Oct - Tue, 4 Nov
American Airlines Logo
18:08 - 11:10PHL-ORK
13h 02m2 stops
American Airlines Logo
07:40 - 16:15ORK-PHL
13h 35m1 stop
€392American Airlines
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Tue, 28 Oct - Tue, 4 Nov
American Airlines Logo
15:56 - 11:10PHL-ORK
15h 14m2 stops
American Airlines Logo
07:40 - 19:51ORK-PHL
17h 11m2 stops
€400American Airlines
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Mon, 22 Sep - Thu, 2 Oct
Delta Logo
12:17 - 10:00PHL-DUB
16h 43m2 stops
Delta Logo
10:00 - 00:54DUB-PHL
19h 54m2 stops
€429Delta
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Sat, 4 Oct - Tue, 14 Oct
KLM Logo
18:51 - 07:55PHL-DUB
32h 04m1 stop
KLM Logo
10:00 - 17:55DUB-PHL
12h 55m1 stop
€429KLM
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Mon, 20 Oct - Sun, 2 Nov
Air Canada Logo
15:25 - 08:15PHL-DUB
35h 50m2 stops
Air Canada Logo
09:00 - 14:47DUB-PHL
34h 47m2 stops
€430Air Canada
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Fri, 17 Oct - Fri, 31 Oct
Air Canada Logo
16:50 - 08:15PHL-DUB
10h 25m1 stop
Air Canada Logo
08:00 - 15:51DUB-PHL
11h 51m1 stop
€435Air Canada
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Sat, 1 Nov - Sat, 15 Nov
Delta Logo
17:20 - 09:20PHL-DUB
36h 00m2 stops
Delta Logo
10:45 - 23:06DUB-PHL
17h 21m2 stops
€441Delta
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Sat, 4 Oct - Wed, 15 Oct
Aer Lingus Logo
20:30 - 08:10PHL-DUB
6h 40mdirect
Aer Lingus Logo
16:20 - 19:00DUB-PHL
7h 40mdirect
€449Aer Lingus
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Mon, 29 Sep - Fri, 3 Oct
Aer Lingus Logo
20:30 - 08:10PHL-DUB
6h 40mdirect
Aer Lingus Logo
16:20 - 19:00DUB-PHL
7h 40mdirect
€462Aer Lingus
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Booking Insights

KAYAK's insights & trends for Philadelphia to Ireland flights

Get data-powered insights and trends into flights from Philadelphia to Ireland to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest Philadelphia to Ireland flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ireland from Philadelphia found in the last 72 hours was to Dublin, at €420 return. The most popular route is from Philadelphia (PHL) to Dublin (DUB), and the cheapest round-trip airline ticket found on this route in the last 72 hours was €420.

Can I save money by flying with a stopover from Philadelphia to Ireland?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of €537, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Philadelphia to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Ireland is February, when tickets cost €511 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is €930 and €715 respectively.

What’s the cheapest day of the week to fly from Philadelphia to Ireland?

The average price of all round-trip flights from Philadelphia to Ireland clicked on KAYAK for each day over the last 12 months.

When flying from Philadelphia to Ireland, you should consider leaving on a Wednesday and avoid Fridays if you are looking for the best rates. For your return to Philadelphia, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

How far in advance should I book a flight from Philadelphia to Ireland?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Ireland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Philadelphia to Ireland, you should book around 4 weeks before departure, which saves you about 20% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight€185
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly and prices are also 4% lower on average.
Flight from Philadelphia to Dublin

FAQs - booking Ireland flights

  • What is the closest airport to Swords, Ireland?

    Passengers visiting the town of Swords should fly into Dublin Airport. Swords is approximately three miles from Dublin Airport, and going north takes you directly to the city. Your fastest transportation option is by taxi, which are available at the airport.

  • Are there any alternative airports to Philadelphia for flights to Ireland?

    Trenton International Airport offers multiple two-stop flights daily to Dublin. Passengers often find Trenton less congested, depending on the day. In addition, fares might be cheaper if you fly on less-traveled days. Domestic layovers vary in time, so it’s best to use the KAYAK app to check schedules so you can more accurately plan your trip.

  • Are there any places to relax at Dublin Airport after my flight?

    Dublin International Airport has exclusive lounges and many restaurants in Terminals 1 and 2, where you’ll find everything from fast food to more eclectic cuisine to Italian dishes to healthy salads. A relaxing spa treatment at the airport can also help you unwind after a long flight.

  • Is it possible to fly to other international locations from Cork Airport in Ireland?

    Passengers will be glad to know there are multiple one-stop and direct flights to many other locations in Europe from Ireland with a variety of carriers. Cork Airport is an international airport in addition to serving domestic flights. For all your options, check the KAYAK app for everything travel.

  • How does KAYAK find such low prices on flights from Philadelphia to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Philadelphia to Ireland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Philadelphia to Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Philadelphia to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Ireland?

    The cheapest time of day to fly to Ireland is generally at night, when retur flights cost €631 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the evening, which is peak travel time and where the average cost of a ticket is €682.

Top tips for finding cheap flights to Ireland

  • For travel from Philadelphia to Ireland, multiple one-stop flights depart daily from early afternoon to evening. For the return trip, non-stop flights are available, depending on the day you travel.
  • There are three international airports in Ireland receiving flights from Philadelphia. The busiest is Dublin Airport, but Shannon Airport is also popular for transatlantic flights. The choice of three airports gives you flexibility for your trip to Ireland.
  • For passengers wishing to travel domestically once in Ireland, multiple flights are available from Cork Airport to Dublin. Nearly all the flights are one-stop flights, and most leave in the afternoon to late evening.
  • Passengers waiting to fly to Ireland from Philadelphia International Airport can take advantage of the Be Relax health spa in Terminal C, which offers full relaxation spa services like massages and skincare.
  • Passengers flying to Ireland from the Philadelphia area should also consider Atlantic City International Airport. It often is less crowded, and fares may be lower, depending on the day you travel. This airport is also easily accessible. Most of the flights have two or three layovers, departing all day.
  • If you’re flying into Cork Airport for your trip to Ireland, you will have a variety of transportation options that are easily accessible. Buses 226 and 226a will take you from the airport to the city center. You can also rent a car or take a taxi from the airport.
  • Dublin Airport offers business travelers state-of-the-art lounges with full-service business technology. Comfortable couches and tables enable you to enjoy a meal and beverage while tending to business before your flight. Charging stations and business journals are also available in all lounges.

Reviews of the top airline flying from Philadelphia to Ireland

 
Need help choosing which airline to fly with from Philadelphia to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Aer LingusOverall score based on 1271 reviews
6.9Entertainment
6.5Food
7.3Boarding
7.1Comfort
8.0Crew
Airline reviews

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

6.0 GoodAnonymous, Sept 2025IND - DUB
Read more Aer Lingus reviews

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

Terrible leg room - I’m 5’3” and my knees were touching the seat in front of me. When the person sitting in front of me leaned back, there was about 15 inches of space between my head and the TV screen which made it awkward to view movies. Last year they had decent food, but this year the only tasty item on the trip was dessert.

The flight was delayed leaving Philadelphia due to “catering” and consequently arrived in Dublin some 75 minutes later than scheduled. Consequently this caused me to miss my connecting flight to Glasgow and I had to spend the night in Dublin.

It was truly a horrible flight. We were delayed almost 2 hours. The seats were so tiny, my legs were hurting the entire flight. When i finally made it to Ireland i missed my connecting flight because we left Newark late. I will most likely never fly Aer Lingus again

Coming from the EU to the USA, Aer Lingus is a very good choice. You clear U.S. border control while still at the departure airport, so when you land in the States, you don’t need to go through the entry process again — very efficient and fast. In terms of comfort, Aer Lingus is better than the usual EU carriers like KLM, Lufthansa, or Air France, and also better than United. There’s more legroom, and the crew is helpful and kind. The food is average but slightly better than most airlines. Overall, the crew is definitely better than on American Airlines, though not quite at the level of Virgin.

Best travel day I've had in a long time. Everything went perfectly, no delays. 10 out of 10

Seat is business could have been a lot cleaner, but space was nice and seat was comfortable

Terrible. The test of an airline is how they deal with problems. There is very little to differentiate between airlines. Aer Lingus failed absolutely. They lost one of my bags even though we had more than a 2 hour connection in Dublin. Trying to get it back has been awful. In checking on line I can see that the bag is in Edinburgh and it was supposed to be delivered today. It wasn't. The number we have in the UK doesn't answer. I had to pay for an international call to speak to somebody. All the woman at the call centre could say was be patient wait. I can tell you when it will be delivered nor can I tell you who the courier is.

A little late, but an overall pleasant flight. Staff pleasent hand helpful, a great start to our holiday.

Poor check-in experience in Manchester. Delayed boarding and check-in agent never explained how to transfer in NYC to JetBlue.

Everything you need to know for your flight from Philadelphia to Ireland

Information on your arrival and departure airports

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