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Cardiff

$405+ Cheap flights from Philadelphia (PHL) to Cardiff (CWL)

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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — CWL
May 4 — May 111
Mon 5/4
Mon 5/11
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 April 4, 2026.

This KLM deal was found by Cheapflights users on 4/1. 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.
Fri 5/16:58 pm
PHL
-
CWL
2 stops17h 07m
KLM
Fri 5/89:45 am
CWL
-
PHL
2 stops18h 27m
KLM
Deal found 4/1$1,146
This KLM deal was found by Cheapflights users on 4/3. 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.
Fri 5/11:58 pm
PHL
-
CWL
2 stops14h 17m
Multiple Airlines
Fri 5/89:45 am
CWL
-
PHL
2 stops17h 27m
Multiple Airlines
Deal found 4/3$1,147
This Delta deal was found by Cheapflights users on 3/30. 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.
Thu 5/1410:00 am
PHL
-
CWL
2 stops18h 15m
Delta
Thu 5/219:45 am
CWL
-
PHL
2 stops20h 12m
Delta
Deal found 3/30$1,184
This Kiwi.com deal was found by Cheapflights users on 4/2. 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 5/178:25 pm
PHL
-
CWL
1 stop20h 20m
Multiple Airlines
Sun 5/249:45 pm
CWL
-
PHL
1 stop26h 10m
Multiple Airlines
Deal found 4/2$1,239
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Thu 5/148:25 pm
PHL
-
CWL
1 stop29h 30m
Multiple Airlines
Thu 5/2110:50 pm
CWL
-
PHL
1 stop25h 05m
Multiple Airlines
Deal found 3/30$1,310
This Delta deal was found by Cheapflights users on 4/2. 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.
Sun 5/176:00 am
PHL
-
CWL
2 stops22h 15m
Delta
Sun 5/249:50 am
CWL
-
PHL
2 stops18h 17m
Delta
Deal found 4/2$1,362
This Delta deal was found by Cheapflights users on 4/1. 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.
Sat 5/166:00 am
PHL
-
CWL
2 stops22h 15m
Delta
Sat 5/239:45 am
CWL
-
PHL
2 stops18h 37m
Delta
Deal found 4/1$1,370

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 April 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,146
(KLM)

One-way from

$405
(Kiwi.com)
Provider with most accurate pricing for Philadelphia-Cardiff Wales flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Cardiff Wales flights.
Search Deals
From Philadelphia to Cardiff Wales
Search Deals
One-way flight from Philadelphia to Cardiff Wales
Search Deals

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 April 4, 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

Fri 5/1

6:58 pm-5:05 pm

2 stops17h 07m

Cardiff Wales

Fri 5/8

9:45 am-11:12 pm

2 stops18h 27m

$1,146
Quickest round-trip

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Fri 5/1

1:58 pm-9:15 am

2 stops14h 17m

Cardiff Wales

Fri 5/8

9:45 am-10:12 pm

2 stops17h 27m

$1,147

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 5/14

10:00 am-9:15 am

2 stops18h 15m

Cardiff Wales

Thu 5/21

9:45 am-12:57 am

2 stops20h 12m

$1,184

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 5/14

8:25 pm-6:55 am

1 stop29h 30m

Cardiff Wales

Thu 5/21

10:50 pm-11:18 pm

2 stops29h 28m

$1,341

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sun 5/17

6:00 am-9:15 am

2 stops22h 15m

Cardiff Wales

Sun 5/24

9:50 am-11:07 pm

2 stops18h 17m

$1,362

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sat 5/16

6:00 am-9:15 am

2 stops22h 15m

Cardiff Wales

Sat 5/23

9:45 am-11:22 pm

2 stops18h 37m

$1,370

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sat 5/16

8:25 pm-9:20 pm

1 stop19h 55m

Cardiff Wales

Sat 5/23

7:30 am-6:55 pm

1 stop16h 25m

$1,498

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sun 5/17

5:40 pm-9:15 am

3 stops34h 35m

Cardiff Wales

Sun 5/24

5:40 pm-11:45 pm

3 stops35h 05m

$1,643
Cheapest one-way

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Mon 6/22

7:50 am-10:50 pm

3 stops34h 00m

$405

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Wed 6/24

8:25 pm-10:25 pm

1 stop21h 00m

$693

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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 April.
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 December is currently the most expensive (average of $1,259). 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 $1,146, KLM can have you in Cardiff from Philadelphia in 17h 07m. Airlines will cover a distance of 3416 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 December is currently the most expensive (average of $1,259). 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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