How long is the flight from Cardiff to Philadelphia?

A quick flight from Cardiff to Philadelphia can take about 17h 17m. Delta provides one of the quickest options available for as low as £798. The distance from Cardiff to Philadelphia is about 3416 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in Philadelphia ranges from 69.0 - 112.0 inches per month. July is typically the wettest month, when rainfall can reach 112.0 mm. February is typically the driest time to visit Philadelphia when rainfall is around 69.0 mm.

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

What is the cheapest time of day to fly from CWL to PHL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Cardiff to Philadelphia as you normally would.

Can I find deals for flights from Cardiff to Philadelphia that include hotel bookings?

Yes. In addition to deals on Cardiff to Philadelphia flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Cardiff to Philadelphia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Philadelphia.

Can I find deals for business class flights from Cardiff to Philadelphia?

Yes. Cheapflights offers flight deals from Cardiff to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£798+ Cheap Flights from Cardiff to Philadelphia

Cheap flight deals from Cardiff to Philadelphia

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Cheapest flights from Cardiff to Philadelphia
Explore the most affordable flight options available from Cardiff to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Thu 15/1009:50 -

2 stops17h 17m

Thu 22/1006:10 -

2 stops22h 05m

Deal found 31/8£798

Thu 15/1022:50 -

1 stop25h 05m

Thu 22/1020:25 -

1 stop29h 30m

Deal found 31/8£906

Thu 15/1012:00 -

3 stops35h 55m

Thu 22/1020:25 -

3 stops34h 05m

Deal found 31/8£1,415

Find flight deals from Cardiff to Philadelphia

Round-trip from	£798

Delta
15/10-22/10
4 total stops
39h 22m total
Cardiff to Philadelphia

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CardiffPhiladelphia

CWL Cardiff Wales - PHL Philadelphia

CWLPHL

Cardiff Wales

Thu 15/10

09:50-22:07

2 stops17h 17m

Philadelphia

Thu 22/10

06:10-09:15

2 stops22h 05m

£798

CardiffPhiladelphia

CWL Cardiff Wales - PHL Philadelphia

CWLPHL

Cardiff Wales

Thu 15/10

22:50-18:55

1 stop25h 05m

Philadelphia

Thu 22/10

20:25-06:55

1 stop29h 30m

£906

CardiffPhiladelphia

CWL Cardiff Wales - PHL Philadelphia

CWLPHL

Cardiff Wales

Thu 15/10

12:00-18:55

3 stops35h 55m

Philadelphia

Thu 22/10

20:25-11:30

3 stops34h 05m

£1,415

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Sorted by cheapest first

Best time to book a flight from Cardiff to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Cardiff with our price prediction graph.

CWL-PHL

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Cardiff to Philadelphia?
A quick flight from Cardiff to Philadelphia can take about 17h 17m. Delta provides one of the quickest options available for as low as £798. The distance from Cardiff to Philadelphia is about 3416 mi. Both multi-stop and direct flights can be found to your destination and back.
Can I find deals for flights from Cardiff to Philadelphia that include hotel bookings?
Yes. In addition to deals on Cardiff to Philadelphia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Cardiff to Philadelphia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Philadelphia.
Can I find deals for business class flights from Cardiff to Philadelphia?
Yes. Cheapflights offers flight deals from Cardiff to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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How does Cheapflights help users find flights from Cardiff to Philadelphia?

Deals for Cardiff to Philadelphia flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Philadelphia?

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Can Cheapflights find flights from Cardiff to Philadelphia with no change fees?

Need flexible booking options for your flight to Philadelphia from Cardiff? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Cardiff to Philadelphia become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Philadelphia from Cardiff today and book when prices fit your budget.

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Cheap flights from Cardiff to Philadelphia from £798

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Cardiff to Philadelphia

Cheapest flights from Cardiff to PhiladelphiaExplore the most affordable flight options available from Cardiff to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Explore the most affordable flight options available from Cardiff to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Best flights from Cardiff to PhiladelphiaDiscover carefully curated flight deals from Cardiff to Philadelphia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Discover carefully curated flight deals from Cardiff to Philadelphia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Last-minute flights from Cardiff to PhiladelphiaDiscover last-minute flight deals from Cardiff to Philadelphia. Data last updated 4 September 2026 and is based on user searches.

Discover last-minute flight deals from Cardiff to Philadelphia. Data last updated 4 September 2026 and is based on user searches.

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Best time to book a flight from Cardiff to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Cardiff with our price prediction graph.

Related info for your journey

How long is the flight from Cardiff to Philadelphia?

Can I find deals for flights from Cardiff to Philadelphia that include hotel bookings?

How can I find direct flights from Cardiff to Philadelphia?

Can I find deals for business class flights from Cardiff to Philadelphia?

Travelling to a place near Philadelphia?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Cardiff to Philadelphia

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Complete your trip

Complete your trip to Philadelphia by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Pennsylvania

Book a non-stop flight to one of these other cities located in Pennsylvania.

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Cardiff and Philadelphia flights

Browse other Cardiff and Philadelphia flight options. Last updated on 4 September 2026.

Other flights from Cardiff

Browse through other flights departing from Cardiff. Flights are based on user searches made on Cheapflights and were last updated on 4 September 2026.

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How does Cheapflights help users find flights from Cardiff to Philadelphia?

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Can Cheapflights notify me if prices for flights from Cardiff to Philadelphia become cheaper?

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Cheapest flights from Cardiff to Philadelphia
Explore the most affordable flight options available from Cardiff to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Best flights from Cardiff to Philadelphia
Discover carefully curated flight deals from Cardiff to Philadelphia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Last-minute flights from Cardiff to Philadelphia
Discover last-minute flight deals from Cardiff to Philadelphia. Data last updated 4 September 2026 and is based on user searches.