€134 Find Cheap Flights from Philadelphia to Ireland – Compare and Save

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 27/9. 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, 0 bags

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Flight Deals

Best Ireland Flight Deals from Philadelphia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stop€317
Cork
Cork2 stops€691
Shannon
Shannon2 stops€690
Milltown (Kerry)
Milltown (Kerry)1 stop€925
Dublin
Dublin1 stop€317
Cork
Cork2 stops€691
Shannon
Shannon2 stops€690
Milltown (Kerry)
Milltown (Kerry)1 stop€925

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, 1 Sep - Tue, 8 Sep
Aer Lingus Logo
08:30 - 05:10
PHL
-
DUB
15h 40m
1 stop
Aer Lingus Logo
13:20 - 22:46
DUB
-
PHL
14h 26m
1 stop
€317Aer Lingus
Tue, 1 Sep - Tue, 8 Sep
Aer Lingus Logo
07:00 - 05:10
PHL
-
DUB
17h 10m
1 stop
Aer Lingus Logo
13:20 - 22:46
DUB
-
PHL
14h 26m
1 stop
€317Aer Lingus
Wed, 19 Aug - Wed, 9 Sep
Aer Lingus Logo
08:30 - 05:10
PHL
-
DUB
15h 40m
1 stop
Aer Lingus Logo
13:20 - 22:46
DUB
-
PHL
14h 26m
1 stop
€318Aer Lingus
Wed, 2 Sep - Tue, 8 Sep
Aer Lingus Logo
07:00 - 05:10
PHL
-
DUB
17h 10m
1 stop
Aer Lingus Logo
13:20 - 22:46
DUB
-
PHL
14h 26m
1 stop
€322Aer Lingus
Tue, 25 Aug - Wed, 2 Sep
Aer Lingus Logo
13:53 - 05:10
PHL
-
DUB
10h 17m
1 stop
Aer Lingus Logo
13:20 - 22:46
DUB
-
PHL
14h 26m
1 stop
€322Aer Lingus
Mon, 24 Aug - Fri, 28 Aug
Aer Lingus Logo
07:00 - 05:10
PHL
-
DUB
17h 10m
1 stop
Aer Lingus Logo
13:20 - 07:40
DUB
-
PHL
23h 20m
1 stop
€322Aer Lingus
Wed, 26 Aug - Wed, 2 Sep
Aer Lingus Logo
10:50 - 05:10
PHL
-
DUB
13h 20m
1 stop
Aer Lingus Logo
13:20 - 22:46
DUB
-
PHL
14h 26m
1 stop
€322Aer Lingus
Mon, 24 Aug - Tue, 1 Sep
Aer Lingus Logo
07:00 - 05:10
PHL
-
DUB
17h 10m
1 stop
Aer Lingus Logo
13:20 - 22:46
DUB
-
PHL
14h 26m
1 stop
€322Aer Lingus
Thu, 20 Aug - Thu, 27 Aug
JetBlue Logo
09:12 - 08:20
PHL
-
DUB
18h 08m
1 stop
JetBlue Logo
10:40 - 20:01
DUB
-
PHL
14h 21m
1 stop
€547JetBlue
Fri, 4 Sep - Tue, 8 Sep
JetBlue Logo
20:55 - 08:20
PHL
-
DUB
30h 25m
1 stop
JetBlue Logo
10:40 - 20:00
DUB
-
PHL
14h 20m
1 stop
€556JetBlue
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 5 days was to Dublin, at €689 return. The most popular route is from Philadelphia (PHL) to Dublin (DUB), and the cheapest return airline ticket found on this route in the last 5 days was €689.

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

The average price for all round-trip flights from Philadelphia to Ireland depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ireland is generally in the evening, when retur flights cost €653 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 at night, which is peak travel time and where the average cost of a ticket is €846.

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.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at €522 on average.

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 January, when tickets cost €468 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of return tickets is €1,017 and €709 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 Thursdays if you are looking for the best rates. For your return to Philadelphia, you’ll find the best rates on Fridays 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 3 weeks before departure, which saves you about 16% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low season

January

Cheapest flight

€134
Best time to beat the crowds (29% less expensive on average)
Most popular time to fly and prices are also 15% 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.

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.
7.3
Aer LingusOverall score based on 1682 reviews
7.0Entertainment
7.2Comfort
6.7Food
7.4Boarding
8.1Crew
Airline reviews

I love flying with them, the long-haul was fantastic. The short flight from Dublin --> Switzerland was horrible though. Most narrow seats I ever had, first and only time in my life I couldn't even close the seatbelt in seat 1A which was very embarrassing so I had to sit in the middle, because that seatbeld was 20cm longer. No idea why seat 1A would have a much shorter belt, it's just ridicilous. Also I hate the fixed seats, way too narrow.

10.0 ExcellentNihad, Jul 2026
JFK - DUB
Read more Aer Lingus reviews

I love flying with them, the long-haul was fantastic. The short flight from Dublin --> Switzerland was horrible though. Most narrow seats I ever had, first and only time in my life I couldn't even close the seatbelt in seat 1A which was very embarrassing so I had to sit in the middle, because that seatbeld was 20cm longer. No idea why seat 1A would have a much shorter belt, it's just ridicilous. Also I hate the fixed seats, way too narrow.

Food was mediocre, but as expected in economy class on an airline. Wrap was ice cold , my son’s served by a steward on the next aisle was warm . As expected, but at least heat the food up a bit. No frills, but it’s economy. Excellent free WiFi was a bonus

I flew Aer Lingus Business class for the first time. Having flown economy a few times, I was familiar with the airline, and happy enough with economy. I’ve certainly been in nicer economy airlines before, but Aer Lingus is usually very reasonable, and I find the staff to be kind and have an Irish sense of humor and accommodation. The business experience was good, in that you got superior service to the back, lay down seats, better food and drinks, and more attentive service. However, the plane was a bit older, the WiFi was slow(not Starlink) and the pods were too close to one another for privacy, or function. When the Oder lady to the left of me fell asleep(fully reclined) there was no way for me to escape without having to wake her and put her seat all the way up. That lead to me being stuck with luggage I couldn’t put away in a cramped(for business) space, and no way to use the restroom for almost the whole 8 1/2 hour trip. I ended up trying to sleep with a large backpack blocking my feet. The food was good for plane food, but not great. The drinks were great, shame I couldn’t have had more, but I’d have peed myself. I love a window, but next time maybe an isle seat. Overall, the experience was good, not great, but an expensive good experience during which I got zero sleep. I’d do it again, but it’d have to be a deal.

The direct flight was a superb idea; please continue. The seats were less than comfortable for such a long flight.

The check in and boarding process was smooth, and the flight was fine.

The free WiFi was great so I could stream movies during the flight. I would like to have movies available instead of on my device. Thanks!

We had a wonderful experience with Aer Lingus. The seats were too close for the long trip. The crew was absolutely perfect. They were so caring and thoughtful! My husband did not have a good experience with Air Lingus on the phone when trying to take care of getting better seating because he is disabled and needed a wheelchair prior to the day of our flight! Mariam R. in Boston was so helpful with seating and getting help for my husband. Filip Pytka who works for OCS was extremely helpful! He made sure that we had the lift because my husband could not climb the stairs to get onto the airplane. He took us from the gate all the way down to where we needed to be.

We were an hour and a half late, which caused my rental car company to cancel my reservation. We had no car, had to take a taxi to our hotel, and then a taxi back to get a new car the next day. Sometimes lack of on-time performance can end up costing the passenger a lot of money, none of which is covered by the airline that operated the late flight.

Overall good experience. But seats were small and uncomfortable for the price. Good entertainment, staff friendly and attentive.

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.

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

Information on your arrival and departure airports