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Cheap flights from Philadelphia to Cardiff from £621

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — CWL
23 Nov — 30 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Philadelphia to Cardiff

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Cardiff (CWL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 24 October 2025.

Round-trip from

£621
Delta
  • Delta
  • 30/1-3/2
  • 4 total stops
  • 40h 23m total
  • Philadelphia to Cardiff
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Find flight deals from Philadelphia to Cardiff

Enter your travel dates to find the best prices.

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 24 October 2025.

Sat 6/1212:22PHL - CWL
2 stops16h 28mMultiple Airlines
Sat 13/1210:20CWL - PHL
2 stops17h 50mMultiple Airlines
Deal found 22/10£652
Thu 18/1212:22PHL - CWL
2 stops16h 28mKLM
Tue 23/1217:25CWL - PHL
2 stops29h 12mKLM
Deal found 24/10£798
Thu 18/1217:40PHL - CWL
2 stops23h 20mMultiple Airlines
Tue 23/1222:00CWL - PHL
3 stops21h 50mMultiple Airlines
Deal found 24/10£1,842
Wed 19/1117:30PHL - CWL
2 stops13h 55mMultiple Airlines
Wed 26/1112:00CWL - PHL
2 stops30h 25mMultiple Airlines
Deal found 22/10£2,984

Cheapflights Fare Finder

 
Customise your flight search to find flights from Philadelphia to Cardiff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 24 October 2025.
Use the filters below to find and compare flights from Philadelphia to Cardiff that are best for you.

Fly from

Philadelphia

Fly to

Cardiff

Route

Depart

Return

Price

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Fri 30/1

06:15-09:50

2 stops22h 35m

Cardiff Wales

Tue 3/2

10:20-23:08

2 stops17h 48m

£621

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sat 6/12

12:22-09:50

2 stops16h 28m

Cardiff Wales

Sat 13/12

10:20-23:10

2 stops17h 50m

£652

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Fri 27/3

11:30-09:50

2 stops18h 20m

Cardiff Wales

Tue 31/3

09:50-20:37

2 stops15h 47m

£719

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 18/12

12:22-09:50

2 stops16h 28m

Cardiff Wales

Tue 23/12

17:25-17:37

2 stops29h 12m

£798

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Fri 27/3

11:30-09:50

2 stops18h 20m

Cardiff Wales

Tue 31/3

09:50-23:03

2 stops42h 13m

£801

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 18/12

17:40-22:00

2 stops23h 20m

Cardiff Wales

Tue 23/12

22:00-14:50

3 stops21h 50m

£1,842

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Wed 19/11

17:30-12:25

2 stops13h 55m

Cardiff Wales

Wed 26/11

12:00-13:25

2 stops30h 25m

£2,984

Flights are sorted by cheapest return flights first.

Deals found on 22/10

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.
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

Find useful and relevant information for your journey from Philadelphia to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Philadelphia to Cardiff?

    Delta, Virgin Atlantic, and KLM can get you from Philadelphia to Cardiff in just under 16h 28m. Your travel time can differ by up to 6h 07m. 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.

See more FAQs

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry
Bridgend

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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.

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

Yes! Start tracking prices for Philadelphia to Cardiff flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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