Flights to Philadelphia

€225 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 21/10. 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

Discover deals from 900+ travel sites with momondo.

Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Ireland to Philadelphia

Cheap return flights

Aer Lingus Logo
16:20 - 19:00DUB-PHL
7h 40mdirect
Aer Lingus Logo
20:30 - 08:10PHL-DUB
6h 40mdirect
€353Aer Lingus
Find Deal
Tue, 14 Oct - Tue, 21 Oct
Aer Lingus Logo
16:20 - 19:00DUB-PHL
7h 40mdirect
Aer Lingus Logo
17:30 - 05:05PHL-DUB
6h 35mdirect
€356Aer Lingus
Find Deal
Thu, 16 Oct - Wed, 5 Nov
 Logo
10:45 - 14:15DUB-PHL
31h 30m1 stop
 Logo
18:35 - 12:25PHL-DUB
12h 50m1 stop
€365
Find Deal
Fri, 31 Oct - Thu, 6 Nov
American Airlines Logo
13:40 - 13:25DUB-PHL
28h 45m1 stop
American Airlines Logo
14:58 - 12:10PHL-DUB
16h 12m2 stops
€375American Airlines
Find Deal
Fri, 7 Nov - Tue, 18 Nov
American Airlines Logo
11:30 - 13:55DUB-PHL
7h 25mdirect
American Airlines Logo
18:35 - 17:00PHL-DUB
17h 25m1 stop
€376American Airlines
Find Deal
Thu, 6 Nov - Wed, 19 Nov
British Airways Logo
18:00 - 16:15DUB-PHL
27h 15m1 stop
British Airways Logo
15:55 - 09:50PHL-DUB
12h 55m2 stops
€378British Airways
Find Deal
Thu, 20 Nov - Mon, 24 Nov
Iberia Logo
11:30 - 14:45DUB-PHL
7h 15mdirect
Iberia Logo
21:15 - 08:40PHL-DUB
6h 25mdirect
€383Iberia
Find Deal
Fri, 31 Oct - Thu, 6 Nov
Iberia Logo
11:30 - 13:55DUB-PHL
7h 25mdirect
Iberia Logo
21:10 - 08:40PHL-DUB
6h 30mdirect
€389Iberia
Find Deal
Sat, 27 Dec - Thu, 8 Jan
Finnair Logo
09:30 - 11:45DUB-PHL
7h 15mdirect
Finnair Logo
19:00 - 06:30PHL-DUB
6h 30mdirect
€396Finnair
Find Deal
Fri, 17 Oct - Wed, 22 Oct
British Airways Logo
17:55 - 13:25DUB-PHL
24h 30m1 stop
British Airways Logo
17:14 - 14:15PHL-DUB
16h 01m2 stops
€397British Airways
Find Deal
Sat, 8 Nov - Sat, 15 Nov

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 13 September 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

Tue 14/10

16:20-19:00

Nonstop7h 40m

Philadelphia

Tue 21/10

20:30-08:10

Nonstop6h 40m

€353

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 16/10

16:20-19:00

Nonstop7h 40m

Philadelphia

Wed 5/11

17:30-05:05

Nonstop6h 35m

€356

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Fri 31/10

10:45-14:15

1 stop31h 30m

Philadelphia

Thu 6/11

18:35-12:25

1 stop12h 50m

€365

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Fri 7/11

13:40-13:25

1 stop28h 45m

Philadelphia

Tue 18/11

14:58-12:10

2 stops16h 12m

€375

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 6/11

11:30-13:55

Nonstop7h 25m

Philadelphia

Wed 19/11

18:35-17:00

1 stop17h 25m

€376

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 20/11

18:00-16:15

1 stop27h 15m

Philadelphia

Mon 24/11

15:55-09:50

2 stops12h 55m

€378

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Fri 31/10

11:30-14:45

Nonstop7h 15m

Philadelphia

Thu 6/11

21:15-08:40

Nonstop6h 25m

€383

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Sat 27/12

11:30-13:55

Nonstop7h 25m

Philadelphia

Thu 8/1

21:10-08:40

Nonstop6h 30m

€389

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Fri 17/10

09:30-11:45

Nonstop7h 15m

Philadelphia

Wed 22/10

19:00-06:30

Nonstop6h 30m

€396

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Sat 8/11

17:55-13:25

1 stop24h 30m

Philadelphia

Sat 15/11

17:14-14:15

2 stops16h 01m

€397

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 €430, 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 €435.

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 San Francisco for €109. This is 81% 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 €582. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around €711. 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 at midday is the least expensive time of day to depart. momondo users have found prices as low as €605 when looking at flights departing at midday. Flights in the afternoon are often more expensive, with an average ticket price of €631.

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 €527 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 €445 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 €430 in April
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM DUBLINJuly20% more expensiveIt costs about €636 for flights to Philadelphia from Dublin in July
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM DUBLINAugust279% 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

€225

Best Round-Trip Price

€353

Fastest flight time

21h 03m

Popular in

July
The best one-way flight price to Philadelphia from Ireland in the last 72 hours is €225 (Dublin to Philadelphia).
The best round-trip flight price to Philadelphia from Ireland in the last 72 hours is €353 (Dublin to Philadelphia).
The fastest flight to Philadelphia from Ireland takes 21h 03m (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 €527. 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 €371 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

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 13/10
Mon 20/10

Find better results for your trip to Philadelphia

Popular Flights to Philadelphia

Popular routes according to searches in the past day on momondo