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Cheap flights from Philadelphia to Cardiff from £303

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — CWL
12 Mar — 19 Mar1
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 10 February 2026.

Wed 18/1109:42
PHL
-
CWL
2 stops19h 08m
Delta
Thu 26/1110:20
CWL
-
PHL
2 stops17h 42m
Delta
Deal found 9/2£584
Wed 18/1113:00
PHL
-
CWL
2 stops15h 50m
KLM
Thu 26/1110:20
CWL
-
PHL
2 stops17h 42m
KLM
Deal found 10/2£584
Tue 6/1019:29
PHL
-
CWL
2 stops16h 16m
Delta
Tue 13/1009:45
CWL
-
PHL
2 stops17h 53m
Delta
Deal found 8/2£680
Fri 9/1017:38
PHL
-
CWL
2 stops18h 27m
Scandinavian Airlines
Fri 16/1017:15
CWL
-
PHL
2 stops34h 23m
Scandinavian Airlines
Deal found 9/2£698
Fri 10/706:00
PHL
-
CWL
2 stops22h 15m
Delta
Fri 17/709:45
CWL
-
PHL
2 stops19h 40m
Delta
Deal found 6/2£907
Fri 10/710:05
PHL
-
CWL
2 stops19h 10m
Multiple Airlines
Fri 17/722:45
CWL
-
PHL
3 stops27h 49m
Multiple Airlines
Deal found 6/2£1,170
Tue 6/1010:05
PHL
-
CWL
3 stops29h 25m
Multiple Airlines
Tue 13/1011:00
CWL
-
PHL
3 stops34h 05m
Multiple Airlines
Deal found 10/2£1,855
Fri 9/1020:25
PHL
-
CWL
3 stops34h 05m
Multiple Airlines
Fri 16/1017:45
CWL
-
PHL
3 stops32h 47m
Multiple Airlines
Deal found 9/2£2,019

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 10 February 2026.

Round-trip from

£907

One-way from

£303
Delta
  • Delta
  • 10/7-17/7
  • 4 total stops
  • 41h 55m total
  • Philadelphia to Cardiff
Search Deals
23/5
  • 23/5
  • 2 total stops
  • 59h 34m 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 10 February 2026.
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 10/7

06:00-09:15

2 stops22h 15m

Cardiff Wales

Fri 17/7

09:45-00:25

2 stops19h 40m

£907

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Fri 10/7

10:05-10:15

2 stops19h 10m

Cardiff Wales

Fri 17/7

22:45-21:34

3 stops27h 49m

£1,170

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sat 7/3

17:22-16:50

2 stops18h 28m

Cardiff Wales

Fri 13/3

10:20-10:55

2 stops28h 35m

£2,447

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sat 7/3

20:50-19:45

1 stop17h 55m

Cardiff Wales

Fri 13/3

08:35-17:15

2 stops36h 40m

£2,932

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sat 23/5

17:41-10:15

2 stops59h 34m

£303

Flights are sorted by cheapest return flights first.

Deals found on 10/2

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.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Cardiff

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

Currently, August is the cheapest month in which you can book a flight from Philadelphia to Cardiff (average of £395). Flying from Philadelphia to Cardiff in June is currently the most expensive (average of £1,015). 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.

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 and KLM can get you from Philadelphia to Cardiff in just under 18h 28m. Your travel time can differ by up to 3h 47m. 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.

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

    Currently, August is the cheapest month in which you can book a flight from Philadelphia to Cardiff (average of £395). Flying from Philadelphia to Cardiff in June is currently the most expensive (average of £1,015). 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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How does Cheapflights help users find flights from Philadelphia to Cardiff?

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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