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Cardiff

$841+ Cheap flights from Philadelphia (PHL) to Cardiff (CWL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — CWL
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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Cheap 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 March 12, 2026.

This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/912:26 pm
PHL
-
CWL
2 stops24h 29m
Delta
Mon 3/1610:20 am
CWL
-
PHL
2 stops37h 29m
Delta
Deal found 3/8$841
This KLM deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:42 am
PHL
-
CWL
2 stops16h 33m
KLM
Wed 4/155:15 pm
CWL
-
PHL
2 stops28h 22m
KLM
Deal found 3/9$858
This KLM deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:38 am
PHL
-
CWL
2 stops16h 37m
KLM
Wed 4/295:15 pm
CWL
-
PHL
2 stops27h 56m
KLM
Deal found 3/8$863
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:25 pm
PHL
-
CWL
1 stop20h 20m
Multiple Airlines
Fri 9/1810:45 pm
CWL
-
PHL
1 stop25h 10m
Multiple Airlines
Deal found 3/11$972
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/88:25 pm
PHL
-
CWL
1 stop21h 00m
Multiple Airlines
Wed 4/1511:30 pm
CWL
-
PHL
1 stop24h 25m
Multiple Airlines
Deal found 3/9$980
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:25 pm
PHL
-
CWL
1 stop21h 00m
Multiple Airlines
Wed 4/2911:50 pm
CWL
-
PHL
1 stop24h 05m
Multiple Airlines
Deal found 3/8$1,001
This Ovago deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:59 pm
PHL
-
CWL
2 stops32h 16m
Multiple Airlines
Sat 8/295:35 pm
CWL
-
PHL
2 stops29h 54m
Multiple Airlines
Deal found 3/8$1,036
This KAYAK deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/39:26 am
PHL
-
CWL
2 stops26h 19m
Multiple Airlines
Tue 6/99:45 am
CWL
-
PHL
2 stops17h 52m
Multiple Airlines
Deal found 3/11$1,087

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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$858
(KLM)
Provider with most accurate pricing for Philadelphia-Cardiff Wales flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Cardiff Wales flights.
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From Philadelphia to Cardiff Wales
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Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated March 12, 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 round-trip

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Wed 4/8

11:42 am-9:15 am

2 stops16h 33m

Cardiff Wales

Wed 4/15

5:15 pm-4:37 pm

2 stops28h 22m

$858

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Wed 4/22

11:38 am-9:15 am

2 stops16h 37m

Cardiff Wales

Wed 4/29

5:15 pm-4:11 pm

2 stops27h 56m

$863

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Wed 6/3

9:26 am-4:45 pm

2 stops26h 19m

Cardiff Wales

Tue 6/9

9:45 am-10:37 pm

2 stops17h 52m

$1,087

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Tue 6/9

1:20 pm-9:15 am

2 stops14h 55m

Cardiff Wales

Mon 6/15

9:45 am-10:18 pm

2 stops17h 33m

$1,174

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Mon 6/22

8:25 pm-10:50 pm

1 stop21h 25m

Cardiff Wales

Fri 6/26

10:45 pm-6:55 pm

1 stop25h 10m

$1,232
Quickest round-trip

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sun 8/23

3:25 pm-10:15 am

2 stops13h 50m

Cardiff Wales

Sat 8/29

11:35 am-10:46 pm

1 stop16h 11m

$1,338

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Mon 6/22

4:05 pm-4:45 pm

2 stops19h 40m

Cardiff Wales

Fri 6/26

9:45 am-10:37 pm

2 stops17h 52m

$1,389

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sun 3/22

6:40 pm-11:05 pm

2 stops24h 25m

Cardiff Wales

Fri 3/27

10:25 pm-5:00 pm

1 stop22h 35m

$1,499

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Mon 3/23

5:33 pm-4:55 pm

2 stops19h 22m

Cardiff Wales

Fri 3/27

5:15 pm-11:00 pm

2 stops33h 45m

$2,910

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sun 3/22

5:33 pm-4:45 pm

2 stops19h 12m

Cardiff Wales

Fri 3/27

5:15 pm-7:07 pm

2 stops29h 52m

$3,213

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Sorted by cheapest first

Compare providers for flights from Philadelphia to Cardiff

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Cardiff in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Cardiff flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Cardiff flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Cardiff flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Cardiff flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Cardiff flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 $539). Flying from Philadelphia to Cardiff in June is currently the most expensive (average of $1,385). 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?

    For as low as $858, KLM can have you in Cardiff from Philadelphia in 16h 33m. Airlines will cover 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 vacation 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 $539). Flying from Philadelphia to Cardiff in June is currently the most expensive (average of $1,385). 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

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