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Cheap flights from Philadelphia to Cardiff from £696

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — CWL
24 Aug — 31 Aug1
1 adult

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 19 August 2025.

Round-trip from

£696
KLM
  • KLM
  • 1/10-8/10
  • 4 total stops
  • 31h 22m total
  • Philadelphia to Cardiff
Search Deals

Find flight deals from Philadelphia to Cardiff

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 19 August 2025.

Wed 1/1013:35PHL - CWL
2 stops14h 40mKLM
Wed 8/1009:50CWL - PHL
2 stops16h 42mKLM
Deal found 17/8£696
Wed 1/1013:35PHL - CWL
2 stops14h 40mMultiple Airlines
Wed 8/1009:50CWL - PHL
2 stops16h 42mMultiple Airlines
Deal found 17/8£703
Thu 18/907:15PHL - CWL
2 stops23h 45mMultiple Airlines
Mon 22/913:10CWL - PHL
1 stop10h 50mMultiple Airlines
Deal found 18/8£774
Thu 2/1010:20PHL - CWL
2 stops20h 40mMultiple Airlines
Thu 9/1007:55CWL - PHL
1 stop16h 05mMultiple Airlines
Deal found 17/8£781

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 19 August 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

Wed 1/10

13:35-09:15

2 stops14h 40m

Cardiff Wales

Wed 8/10

09:50-21:32

2 stops16h 42m

£696

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Wed 1/10

13:35-09:15

2 stops14h 40m

Cardiff Wales

Wed 8/10

09:50-21:32

2 stops16h 42m

£703

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 18/9

07:15-12:00

2 stops23h 45m

Cardiff Wales

Mon 22/9

13:10-19:00

1 stop10h 50m

£774

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 2/10

10:20-12:00

2 stops20h 40m

Cardiff Wales

Thu 9/10

07:55-19:00

1 stop16h 05m

£781

Flights are sorted by cheapest return flights first.

Deals found on 17/8

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?

    KLM can get you from Philadelphia to Cardiff in just under 14h 40m. Your travel time can differ by up to . Philadelphia and Cardiff are separated by a distance of 3416 mi.

  • 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.

  • What is the cheapest month to book a flight from Philadelphia to Cardiff?

    Currently, July is the cheapest month in which you can book a flight from Philadelphia to Cardiff (average of £169). Flying from Philadelphia to Cardiff in December is currently the most expensive (average of £263). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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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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