Flights to Philadelphia

€261 Cheap flights to Philadelphia

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Philadelphia departing on 13/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ireland to Philadelphia

Cheap return flights

Iberia Logo
09:30 - 11:45DUB-PHL
7h 15mdirect
Iberia Logo
19:00 - 06:30PHL-DUB
6h 30mdirect
€394Iberia
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Thu, 9 Oct - Thu, 16 Oct
 Logo
09:30 - 11:45DUB-PHL
7h 15mdirect
 Logo
19:10 - 11:40PHL-DUB
11h 30m1 stop
€395
Find Deal
Mon, 8 Sep - Sat, 20 Sep
Delta Logo
06:00 - 16:53DUB-PHL
15h 53m2 stops
Delta Logo
10:35 - 10:45PHL-DUB
19h 10m1 stop
€397Delta
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Sat, 4 Oct - Mon, 6 Oct
 Logo
09:30 - 11:45DUB-PHL
7h 15mdirect
 Logo
14:15 - 05:30PHL-DUB
10h 15m1 stop
€398
Find Deal
Fri, 5 Sep - Wed, 17 Sep
American Airlines Logo
08:35 - 15:30DUB-PHL
11h 55m1 stop
American Airlines Logo
18:50 - 06:30PHL-DUB
6h 40mdirect
€399American Airlines
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Fri, 5 Sep - Sat, 13 Sep
American Airlines Logo
11:30 - 13:55DUB-PHL
7h 25mdirect
American Airlines Logo
21:10 - 08:40PHL-DUB
6h 30mdirect
€401American Airlines
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Thu, 4 Dec - Mon, 8 Dec
Finnair Logo
09:30 - 11:45DUB-PHL
7h 15mdirect
Finnair Logo
18:50 - 06:30PHL-DUB
6h 40mdirect
€403Finnair
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Thu, 4 Sep - Sat, 13 Sep
British Airways Logo
11:45 - 23:17DUB-PHL
16h 32m1 stop
British Airways Logo
13:10 - 05:30PHL-DUB
11h 20m1 stop
€410British Airways
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Mon, 8 Sep - Wed, 17 Sep
British Airways Logo
08:35 - 16:25DUB-PHL
12h 50m1 stop
British Airways Logo
16:00 - 11:50PHL-DUB
14h 50m2 stops
€513British Airways
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Thu, 2 Oct - Mon, 6 Oct
Aer Lingus Logo
16:55 - 11:45SNN-PHL
23h 50m2 stops
Aer Lingus Logo
18:30 - 20:35PHL-SNN
21h 05m1 stop
€638Aer Lingus
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Mon, 22 Sep - Mon, 29 Sep

momondo Fare Finder

 
Locate flights to Philadelphia that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 13,528 searches and data was last updated on 26 August 2025.
Use the filters below to find and compare flights to Philadelphia that are best for you.

Fly from

Route

Depart

Return

Price

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 9/10

09:30-11:45

Nonstop7h 15m

Philadelphia

Thu 16/10

19:00-06:30

Nonstop6h 30m

€394

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Mon 8/9

09:30-11:45

Nonstop7h 15m

Philadelphia

Sat 20/9

19:10-11:40

1 stop11h 30m

€395

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Sat 4/10

06:00-16:53

2 stops15h 53m

Philadelphia

Mon 6/10

10:35-10:45

1 stop19h 10m

€397

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Fri 5/9

09:30-11:45

Nonstop7h 15m

Philadelphia

Wed 17/9

14:15-05:30

1 stop10h 15m

€398

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Fri 5/9

08:35-15:30

1 stop11h 55m

Philadelphia

Sat 13/9

18:50-06:30

Nonstop6h 40m

€399

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 4/12

11:30-13:55

Nonstop7h 25m

Philadelphia

Mon 8/12

21:10-08:40

Nonstop6h 30m

€401

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 4/9

09:30-11:45

Nonstop7h 15m

Philadelphia

Sat 13/9

18:50-06:30

Nonstop6h 40m

€403

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Mon 8/9

11:45-23:17

1 stop16h 32m

Philadelphia

Wed 17/9

13:10-05:30

1 stop11h 20m

€410

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 2/10

08:35-16:25

1 stop12h 50m

Philadelphia

Mon 6/10

16:00-11:50

2 stops14h 50m

€513

ShannonPhiladelphia

SNN - PHL

SNNPHL

Shannon

Mon 22/9

16:55-11:45

2 stops23h 50m

Philadelphia

Mon 29/9

18:30-20:35

1 stop21h 05m

€638

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Philadelphia from

Philadelphia flights insights and trends

Explore insights for your Philadelphia flight to craft the best travel plan

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Ireland is in April. Flight prices, which tend to average around €432, are often lower during this time because this is during the off-season. If you don’t want to visit Philadelphia in April, then you should wait until February to fly from Ireland, when ticket prices are also cheap, with an average price of €437.

What is the absolute cheapest flight to Philadelphia?

The best deal found on momondo in the last two weeks was a flight to Philadelphia from Shannon, Clare for €387. This is 30% cheaper than most flight deals to Philadelphia. To find the cheapest price to Philadelphia from your area, use momondo’s Airport-to-Airport Pricing Tool.
See prices from:

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Ireland to Philadelphia is on a Wednesday. Travellers who choose to depart for Philadelphia on a Wednesday will often find tickets for as low as €589. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around €716. These prices are subject to change though, so be sure to set up a Price Alert for flights to Philadelphia.

What is the cheapest time of day to depart on your flight to Philadelphia?

Flying to Philadelphia from Ireland in the morning is the least expensive time of day to depart. momondo users have found prices as low as €609 when looking at flights departing in the morning. Flights in the afternoon are often more expensive, with an average ticket price of €634.

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

You are more likely to see cheaper flights to Philadelphia from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around €530 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Ireland for as low as €447 on momondo.

Cheapest flights to Philadelphia

Find the cheapest flights to Philadelphia from your nearest city or airport
CHEAPEST MONTH TO FLY TO PHILADELPHIA FROM DUBLINApril19% cheaperFlying from Dublin to Philadelphia costs on average just €432 in April
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM DUBLINJuly20% more expensiveIt costs about €639 for flights to Philadelphia from Dublin in July
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM DUBLINAugust277% more users visitedMore momondo users searched in flights to Philadelphia from Dublin in August than any other month

Cheap Philadelphia flight deals and tips

Summary info about Philadelphia flight prices, duration and airlines

Best One-Way Price

€261

Best Round-Trip Price

€394

Fastest flight time

17h 23m

Popular in

July
The best one-way flight price to Philadelphia from Ireland in the last 72 hours is €261 (Dublin to Philadelphia).
The best round-trip flight price to Philadelphia from Ireland in the last 72 hours is €394 (Dublin to Philadelphia).
The fastest flight to Philadelphia from Ireland takes 17h 23m (Dublin to Philadelphia).
July has the highest demand for flights to Philadelphia, with a 12% price increase on average.

Frequently asked questions about flying to Philadelphia

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

We recommend purchasing flights from Ireland to Philadelphia 70 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Philadelphia for €530. Keep in mind that you might be able to find cheaper flights to Philadelphia at any time. In fact, our users found flights for as low as €373 in the past 72 hours.

Is there an alternative airport near Philadelphia?

Philadelphia Airport, Trenton-Mercer Airport, Greater Wilmington Airport, Atlantic City Airport or Newark Airport can be an alternative airport used for travel to Philadelphia.

Is there a cheaper alternative to flying into Philadelphia?

New York LaGuardia Airport has an average price of €124 per person and is typically the cheapest airport to fly into when visiting Philadelphia. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

When did momondo last update prices for flights to Philadelphia Airport?

Prices for flights to Philadelphia Airport are refreshed on a daily basis.

How many operators does momondo search for flights to Philadelphia Airport?

How old do you have to be to fly to Philadelphia Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel to Philadelphia Airport.

What documentation or ID do you need to fly to Philadelphia Airport?

The travel and health documents required for your trip to Philadelphia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Philadelphia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal to Philadelphia?

Finding the right flight to Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Philadelphia quick and easy, saving you time and money.

Can I find flights to Philadelphia with flexible booking policies on momondo?

momondo does allow users to show only those flights to Philadelphia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights to Philadelphia?

Once all potential Philadelphia flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.

I’m not ready to book a flight to Philadelphia right now. Can momondo alert me if prices change?

Yes. momondo can track flight prices for Philadelphia and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Philadelphia trip

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Popular Flights to Philadelphia

Popular routes according to searches in the past day on momondo