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Cheap flights from Philadelphia to Cardiff from £750

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — CWL
12 Aug — 19 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap 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 13 July 2026.

Wed 26/818:55
PHL
-
CWL
2 stops16h 50m
KLM
Wed 2/909:45
CWL
-
PHL
2 stops17h 31m
KLM
Deal found 12/7£750
Tue 1/913:15
PHL
-
CWL
2 stops15h 00m
KLM
Mon 14/917:15
CWL
-
PHL
2 stops28h 17m
KLM
Deal found 8/7£755
Wed 26/815:25
PHL
-
CWL
3 stops20h 20m
Multiple Airlines
Wed 2/917:15
CWL
-
PHL
3 stops26h 34m
Multiple Airlines
Deal found 12/7£767
Mon 10/817:29
PHL
-
CWL
2 stops18h 16m
Virgin Atlantic
Sun 16/809:50
CWL
-
PHL
2 stops38h 40m
Virgin Atlantic
Deal found 10/7£812
Tue 11/812:10
PHL
-
CWL
2 stops16h 05m
KLM
Mon 17/817:15
CWL
-
PHL
2 stops29h 44m
KLM
Deal found 12/7£831
Mon 10/815:25
PHL
-
CWL
3 stops36h 50m
Multiple Airlines
Sun 16/817:15
CWL
-
PHL
3 stops45h 54m
Multiple Airlines
Deal found 10/7£851
Tue 11/820:25
PHL
-
CWL
1 stop21h 25m
Multiple Airlines
Mon 17/811:35
CWL
-
PHL
2 stops16h 51m
Multiple Airlines
Deal found 12/7£862
Sat 8/818:59
PHL
-
CWL
2 stops16h 46m
KLM
Fri 14/817:15
CWL
-
PHL
2 stops28h 25m
KLM
Deal found 9/7£920

Find 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 13 July 2026.

Round-trip from

£750
KLM
  • KLM
  • 26/8-2/9
  • 4 total stops
  • 34h 21m total
  • Philadelphia to Cardiff
Search Deals

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 13 July 2026.
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

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Tue 1/9

18:55-16:45

2 stops16h 50m

Cardiff Wales

Mon 14/9

17:15-16:17

2 stops28h 02m

£755
Fastest return journey

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Tue 1/9

13:15-16:45

2 stops22h 30m

Cardiff Wales

Wed 9/9

09:45-22:31

2 stops17h 46m

£755

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Mon 10/8

17:29-16:45

2 stops18h 16m

Cardiff Wales

Sun 16/8

09:50-19:30

2 stops38h 40m

£812

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Wed 26/8

20:25-22:25

1 stop21h 00m

Cardiff Wales

Wed 2/9

23:50-18:55

1 stop24h 05m

£815

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Sorted 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.
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 and Delta can get you from Philadelphia to Cardiff in just under 16h 50m. Your travel time can differ by up to 5h 40m. 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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