£319 Find Cheap Flights from Ireland to Philadelphia

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight to Philadelphia departing on 12/3. 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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These are the airlines KAYAK users have selected most often from within our search results for flights to Philadelphia
These are the airlines KAYAK users have selected most often from within our search results for flights to Philadelphia
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Cheap Flights from Ireland to Philadelphia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ireland to Philadelphia 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 Ireland to Philadelphia

Thu, 12 Mar - Thu, 19 Mar
Aer Lingus Logo
13:00 - 17:00DUB-PHL
8h 00mdirect
Aer Lingus Logo
18:30 - 05:05PHL-DUB
6h 35mdirect
£319Aer Lingus
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Thu, 4 Dec - Mon, 8 Dec
American Airlines Logo
10:30 - 13:15DUB-PHL
31h 45m1 stop
American Airlines Logo
19:50 - 17:05PHL-DUB
16h 15m1 stop
£331American Airlines
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Thu, 4 Dec - Mon, 8 Dec
American Airlines Logo
11:30 - 14:00DUB-PHL
7h 30mdirect
American Airlines Logo
19:50 - 15:25PHL-DUB
14h 35m1 stop
£333American Airlines
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Thu, 5 Feb - Sun, 8 Feb
British Airways Logo
11:30 - 14:05DUB-PHL
7h 35mdirect
British Airways Logo
18:35 - 09:50PHL-DUB
10h 15m1 stop
£343British Airways
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Thu, 20 Nov - Mon, 24 Nov
Delta Logo
05:55 - 23:06DUB-PHL
22h 11m2 stops
Delta Logo
17:33 - 15:45PHL-DUB
17h 12m2 stops
£349Delta
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Mon, 10 Nov - Tue, 18 Nov
Delta Logo
05:55 - 16:45DUB-PHL
15h 50m2 stops
Delta Logo
17:33 - 15:45PHL-DUB
17h 12m2 stops
£350Delta
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Thu, 12 Mar - Thu, 19 Mar
British Airways Logo
11:30 - 14:55DUB-PHL
7h 25mdirect
British Airways Logo
19:35 - 14:50PHL-DUB
15h 15m1 stop
£355British Airways
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Fri, 12 Dec - Fri, 19 Dec
Aer Lingus Logo
13:00 - 16:00DUB-PHL
8h 00mdirect
Aer Lingus Logo
10:39 - 08:50PHL-DUB
17h 11m1 stop
£384Aer Lingus
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Sat, 24 Jan - Mon, 26 Jan
United Airlines Logo
09:00 - 22:56DUB-PHL
18h 56m1 stop
United Airlines Logo
10:10 - 08:10PHL-DUB
17h 00m1 stop
£449United Airlines
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Thu, 4 Dec - Mon, 8 Dec
United Airlines Logo
09:30 - 21:10DUB-PHL
16h 40m2 stops
United Airlines Logo
13:15 - 09:55PHL-DUB
15h 40m2 stops
£456United Airlines
Find Deal

Everything you should know

Top airlines
American Airlines
Most flights • 7 per week
Finnair
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
April
Cheapest • 17% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£319
Typical prices: £351-£535
Aer Lingus
Thu 12/3Thu 19/3
DUB - PHL • Direct
Cheapest one-way flight
£340
Typical prices: £448-£576
Aer Lingus
Mon 26/1
DUB - PHL • 1 stop
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Philadelphia!
Booking Insights

KAYAK's insights & trends for flights to Philadelphia

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

What is the cheapest month to fly to Philadelphia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Philadelphia, 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 to Philadelphia is April, where tickets cost £381 on average for one-way flights. On the other hand, the most expensive months are July and June, where the average cost of tickets from Ireland is £555 and £526 respectively. For return trips, the best month to travel is April with an average price of £381.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Philadelphia, 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, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 70 days before departure.

Good to know - Cheap tickets from Ireland to Philadelphia

Low seasonFebruary
Cheapest flight£319
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (10% more expensive on average)
Flight from Dublin to Philadelphia

FAQs - booking Philadelphia flights

  • How far is Philadelphia Airport from central Philadelphia?

    There are 7 miles between Philadelphia city centre and Philadelphia Airport.

  • What is the name of Philadelphia’s airport?

    Philadelphia is served by Philadelphia Airport, also commonly referred to as Philadelphia or Philadelphia Intl. The airport code is PHL.

  • How much is a flight to Philadelphia?

    On average, a flight to Philadelphia costs £421. The cheapest price found on KAYAK in the last 2 weeks cost £318 and departed from Dublin Airport.

  • What is the cheapest day to fly to Philadelphia?

    Based on KAYAK data, the cheapest day to fly to Philadelphia is Monday where tickets can be as cheap as £464. On the other hand, the most expensive day to fly is Sunday, where prices are £542 on average.

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

    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 to Philadelphia.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Philadelphia 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 to Philadelphia?

    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 to Philadelphia 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 Philadelphia?

    The cheapest time of day to fly to Philadelphia is generally in the afternoon, when flights cost £489 on average. The most expensive time of day to fly to Philadelphia is generally in the evening, which is peak travel time and where the average cost of a ticket is £518.

Top tips for finding cheap flights to Philadelphia

  • Looking for cheap airfare to Philadelphia? 25% of our users found round-trip tickets to Philadelphia for the following prices or less: Cheap flights to Philadelphia from Dublin £1,067
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Philadelphia flight deals.

Reviews of the top 5 airlines flying from Ireland to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Philadelphia. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Philadelphia? 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.
7.6
FinnairOverall score based on 1333 reviews
7.6Boarding
6.9Entertainment
8.1Crew
6.7Food
7.4Comfort
Airline reviews

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

8.0 ExcellentDavid, Oct 2025LHR - BWI
Read more Finnair reviews

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

Nice comfortable flight from Barcelona back to the states. The premium economy offers the extra room we need for my husband. The food was good and our flight attendants were excellent.

the trip to madrid was uncomfortable with my legs touching the seat in front of me

Very crowded flight but what can you expect these days?? Crew was accommodating.

Small outdated plane from Philly to Des Moines with very uncomfortable seats. The plane was old, so we had mechanical issues that delayed us for 3 hours with very little communication. It was a very unpleasant experience and I will try to never fly AA again.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

Internet was a bit expensive and did not work ask that week otherwise a good flight

They don't make it easy or promote their food options. Dirty plane. Delayed.

International baggage recheck process in Philadelphia was a disaster. Waited 1 hour and 45 minutes to receive our bags. Waited 15 minutes to recheck bags, flight notification boards were blank so we asked an AA representative for our connecting gate and we were directed to the wrong terminal and gate. Our connection window was over 3 hours and we made our flight by 5 minutes. We pulled away from the gate and sat on the runway for 1 1/2 hours. 1 of our 4 bags didn’t make it to Phoenix. The mobile app for lost baggage didn’t work, the AA rep had to manually fix.

I miss my flight and they could not rebook me that day because the other flight was full, and for the next day I had to pay a whole new fee again which I think is unprofessional

The flight had a delay that made me being in a real rush to take the second flight. The delay was almost for 2 hours. They moved us from gate to gate in 4 times. Once I arrived to Philadelphia, I got to run thorough all the airport, as the train was already closed by that time. So I got sick with asthma for all the running I had to do. And I was the last one to board, when it was almost closed. So irresponsable with the people

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

The seats needs to be comfortables, at least please add more padding to the seats.

Incredible service. Incredible entertainment. I felt like they just kept serving us something new avery hour. My wife and I both had a joyous flight.

They out me in the baby row so I was surrounded by toddlers, they also did not send my luggage and was not able to book my connecting flight

I was so grateful for the kindness of the crew. They made a long trip very pleasant. Food was delicious. Many movie options

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

Dinner was fabulous. Would have enjoyed a wine with it. None offered... for sale??? Breakfast was disappointing but adequate amount of food.

Excellent flight and crew. Boarding at Dublin Airport was a very difficult trying to find the right gate.

Dublin airport is big and US Customs and Immigration screening officers are is part of the process there. This eliminates screening upon arrival to US, however should be taken into consideration when playing your transfer. After all, pleasant experience enhanced by draft Guinness and Irish coffee at the buffet area near the gate. We loved boarding by the row, back of the airplane first.

There was a mixup with our tickets. They said they did not receive payment for them but yet we had seat assignments. We had to purchase last-minute tickets which cost us three times as much. that’s why they got a rated of a one.

We flew into Barcelona and the plane was so cramped and very uncomfortable and dirty. But we flew out of Madrid and that plane was much better. Would fly Iberia again.

For what we are willing to pay for international air travel, our experience was very good. We had no problem checking in, we had very little wait time at the AA counter in Madrid, and the staff in Madrid were very helpful. The flight crew was helpful and courteous, the plane was on the newer side, and our assigned seats were together without us needing to purchase them. The flight took off on time and arrived early. Overall, it was a pleasant experience or as much as could be expected in economy for almost 10 hours.

Boarding was easy, the flight left on time and even landed 20 minutes early. The food was plentiful and really good! The crew was kind & helpful. Overall it was an exceptional experience!

We were delayed 2 hours because the crew was late. They need better planning by the crew, we had to sit in uncomfortable seats waiting for them.

The flight was safe, confortable and convenient. Thank you. I hope to come back soon!

Difficulty to check in online, but well handled at the airport. Flight delay was unfortunate. Crew was adequate but not what we have usually experienced from BA. Seat was not comfortable.

Food was terrible. Going to Italy I gave benefit of the doubt however returning to the USA was no better. Rolls were frozen. Butter was frozen. Quality of entree poor

temperature was too cold there should be free blankets, seat are very uncomfortable, entertainment is limited.

Basic service for a decent price, all amenities are à la cart

Cabin crew friendlier, they weren't weren't unfriendly, but simply professional and not more

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

Crew service was poor and very little difference between premium economy and economy. Disappointed.

My bags never made it on the flight and I now have to wait for them to arrive hopefully tomorrow. You can’t even track your bags in the app to see where they are since they didn’t arrive. You have to file a claim and then wait for them to inform you when you will receive your bag. We were already delayed for an hour due to baggage so I don’t understand how my bag didn’t make the flight.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

I am a 25+ years American Airlines member. British Airways is simply above and beyond in every customer satisfaction category.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

Travelling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
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