How long is the flight from Philadelphia to Cardiff?

Delta and KLM can get you from Philadelphia to Cardiff in just under 17h 47m. Your travel time can differ by up to 58m. Philadelphia and Cardiff are separated by a distance of 3416 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Cardiff ranges from 50.0 - 90.0 inches per month. January is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Cardiff when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Cardiff, 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 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

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

When flying from Philadelphia to Cardiff, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from Philadelphia to Cardiff?

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

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

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

£364+ Cheap Flights from Philadelphia to Cardiff

Cheap flight deals from Philadelphia to Cardiff

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Philadelphia to Cardiff
Explore the most affordable flight options available from Philadelphia to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 September 2026.

Mon 5/1017:00 -

2 stops18h 45m

Wed 21/1009:45 -

2 stops17h 22m

Deal found 9/9£667

Sat 10/1021:09 -

2 stops43h 36m

Sat 17/1007:30 -

1 stop16h 25m

Deal found 11/9£968

Wed 23/1217:40 -

1 stop14h 20m

Wed 30/1221:40 -

1 stop23h 30m

Deal found 13/9£984

Sat 10/1017:29 -

2 stops18h 16m

Sat 17/1009:45 -

2 stops18h 23m

Deal found 11/9£990

Wed 23/1219:22 -

2 stops16h 38m

Wed 30/1210:20 -

2 stops19h 39m

Deal found 13/9£1,090

Sat 10/1020:25 -

3 stops34h 05m

Sat 17/1012:00 -

3 stops35h 55m

Deal found 11/9£1,561

Fri 2/1018:45 -

2 stops35h 45m

Thu 12/1109:00 -

2 stops36h 15m

Deal found 12/9£6,662

Find flight deals from Philadelphia to Cardiff

Round-trip from	£667
One-way from	£364

Delta
5/10-21/10
4 total stops
36h 07m total
Philadelphia to Cardiff

Search Deals

28/11-31/12
1 total stop
15h 15m total
Philadelphia to Cardiff

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

PhiladelphiaCardiff

PHL Philadelphia - CWL Cardiff Wales

PHLCWL

Philadelphia

Sat 28/11

17:40-13:55

1 stop15h 15m

Cardiff Wales

Wed 31/12

00:00-18:00

Nonstop0h 00m

£364

PhiladelphiaCardiff

PHL Philadelphia - CWL Cardiff Wales

PHLCWL

Philadelphia

Sat 28/11

17:24-17:00

2 stops18h 36m

Cardiff Wales

Wed 31/12

00:00-18:00

Nonstop0h 00m

£469

PhiladelphiaCardiff

PHL Philadelphia - CWL Cardiff Wales

PHLCWL

Philadelphia

Mon 5/10

17:00-16:45

2 stops18h 45m

Cardiff Wales

Wed 21/10

09:45-22:07

2 stops17h 22m

£667

PhiladelphiaCardiff

PHL Philadelphia - CWL Cardiff Wales

PHLCWL

Philadelphia

Wed 3/2

18:13-17:00

2 stops17h 47m

Cardiff Wales

Wed 10/2

17:30-20:37

2 stops32h 07m

£680

PhiladelphiaCardiff

PHL Philadelphia - CWL Cardiff Wales

PHLCWL

Philadelphia

Sat 6/3

18:13-17:00

2 stops17h 47m

Cardiff Wales

Sat 20/3

10:20-23:02

2 stops16h 42m

£939

PhiladelphiaCardiff

PHL Philadelphia - CWL Cardiff Wales

PHLCWL

Philadelphia

Sat 10/10

21:09-21:45

2 stops43h 36m

Cardiff Wales

Sat 17/10

07:30-18:55

1 stop16h 25m

£968

PhiladelphiaCardiff

PHL Philadelphia - CWL Cardiff Wales

PHLCWL

Philadelphia

Wed 23/12

17:40-13:00

1 stop14h 20m

Cardiff Wales

Wed 30/12

21:40-16:10

1 stop23h 30m

£984

PhiladelphiaCardiff

PHL Philadelphia - CWL Cardiff Wales

PHLCWL

Philadelphia

Sat 10/10

17:29-16:45

2 stops18h 16m

Cardiff Wales

Sat 17/10

09:45-23:08

2 stops18h 23m

£990

PhiladelphiaCardiff

PHL Philadelphia - CWL Cardiff Wales

PHLCWL

Philadelphia

Wed 23/12

19:22-17:00

2 stops16h 38m

Cardiff Wales

Wed 30/12

10:20-00:59

2 stops19h 39m

£1,090

PhiladelphiaCardiff

PHL Philadelphia - CWL Cardiff Wales

PHLCWL

Philadelphia

Sat 10/10

20:25-11:30

3 stops34h 05m

Cardiff Wales

Sat 17/10

12:00-18:55

3 stops35h 55m

£1,561

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 11 resultsSorted by cheapest first

Best time to book a flight from Philadelphia to Cardiff

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

PHL-CWL

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 Philadelphia to Cardiff?
Delta and KLM can get you from Philadelphia to Cardiff in just under 17h 47m. Your travel time can differ by up to 58m. Philadelphia and Cardiff are separated by a distance of 3416 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Philadelphia to Cardiff that include hotel bookings?
Yes. In addition to deals on Philadelphia to Cardiff flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Philadelphia to Cardiff?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Cardiff.
Can I find deals for business class flights from Philadelphia to Cardiff?
Yes. Cheapflights offers flight deals from Philadelphia to Cardiff 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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When you search for this flight from Philadelphia to Cardiff, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights helps you find that perfect flight to Cardiff from Philadelphia by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Philadelphia to Cardiff, users can toggle the no change fees filter when performing a flight search.

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Cheap flights from Philadelphia to Cardiff from £364

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Philadelphia to Cardiff

Cheapest flights from Philadelphia to CardiffExplore the most affordable flight options available from Philadelphia to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 September 2026.

Explore the most affordable flight options available from Philadelphia to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 September 2026.

Best flights from Philadelphia to CardiffDiscover carefully curated flight deals from Philadelphia to Cardiff that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Discover carefully curated flight deals from Philadelphia to Cardiff that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Last-minute flights from Philadelphia to CardiffDiscover last-minute flight deals from Philadelphia to Cardiff. Data last updated 13 September 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to Cardiff. Data last updated 13 September 2026 and is based on user searches.

One-way flights from Philadelphia to CardiffSearch for one-way flight options from Philadelphia to Cardiff. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

Search for one-way flight options from Philadelphia to Cardiff. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

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Best time to book a flight from Philadelphia to Cardiff

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

Related info for your journey

How long is the flight from Philadelphia to Cardiff?

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

How can I find direct flights from Philadelphia to Cardiff?

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

Travelling to a place near Cardiff?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Philadelphia to Cardiff

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Other flights to Cardiff

Explore flights to Cardiff departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 13 September 2026.

Complete your trip

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

Direct flights to Wales

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

Search flights from Philadelphia to Cardiff by cabin class

Find flights from Philadelphia to Cardiff, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Philadelphia and Cardiff flights

Browse other Philadelphia and Cardiff flight options. Last updated on 13 September 2026.

Other flights from Philadelphia

Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on 13 September 2026.

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

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

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

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Cheapest flights from Philadelphia to Cardiff
Explore the most affordable flight options available from Philadelphia to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 September 2026.

Best flights from Philadelphia to Cardiff
Discover carefully curated flight deals from Philadelphia to Cardiff that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Last-minute flights from Philadelphia to Cardiff
Discover last-minute flight deals from Philadelphia to Cardiff. Data last updated 13 September 2026 and is based on user searches.

One-way flights from Philadelphia to Cardiff
Search for one-way flight options from Philadelphia to Cardiff. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.