How long is the flight from Philadelphia to Cardiff?

For as low as $826, KLM can have you in Cardiff from Philadelphia in 16h 21m. Airlines will cover a distance of 3416 mi.

In terms of precipitation, rainfall in Cardiff ranges from 2.0 - 3.5 inches per month. January is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Cardiff when rainfall is around 2.0 in.

If weather is an important factor for your trip to Cardiff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

Most accurate provider : When it comes to deals on Philadelphia-Cardiff flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Philadelphia-Cardiff flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$826+ Flights from Philadelphia to Cardiff

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Cheap flight deals from Philadelphia to Cardiff

Best flights from Philadelphia to Cardiff
Discover carefully curated flight deals from Philadelphia to Cardiff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Sun 2/812:29 pmPHL - CWL

2 stops16h 21mKLM

Sun 2/155:30 pmCWL - PHL

2 stops28h 02mKLM

Deal found 12/25

$826

Sat 2/79:40 amPHL - CWL

2 stops19h 05mKLM

Sat 2/1410:20 amCWL - PHL

2 stops17h 53mKLM

Deal found 12/23

$874

Find flight deals from Philadelphia to Cardiff

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$826 (KLM)

Provider with most accurate pricing for Philadelphia-Cardiff Wales flight deals.

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Provider most trusted by Cheapflights users for Philadelphia-Cardiff Wales flights.

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From Philadelphia to Cardiff Wales

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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

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sun 2/8

12:29 pm-9:50 am

2 stops16h 21m

Cardiff Wales

Sun 2/15

5:30 pm-4:32 pm

2 stops28h 02m

$826

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sat 2/7

9:40 am-9:45 am

2 stops19h 05m

Cardiff Wales

Sat 2/14

10:20 am-11:13 pm

2 stops17h 53m

$874

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Compare providers for flights from Philadelphia to Cardiff

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Cardiff in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy2 stars	Trust Score*2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Philadelphia-Cardiff flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 time of day to fly from PHL to CWL?

Unlike in the evening, when flights are generally more expensive, you can save up to 18% on flights from Philadelphia to Cardiff by exploring options for tickets in the afternoon.

Related info for your journey

How long is the flight from Philadelphia to Cardiff?
For as low as $826, KLM can have you in Cardiff from Philadelphia in 16h 21m. 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.

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$826+ 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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Philadelphia to Cardiff with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Philadelphia to Cardiff

Best flights from Philadelphia to CardiffDiscover carefully curated flight deals from Philadelphia to Cardiff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Discover carefully curated flight deals from Philadelphia to Cardiff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Find flight deals from Philadelphia to Cardiff

Most accurate provider

Most trusted provider

Round-trip from

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Use the filters below to find and compare flights from Philadelphia to Cardiff that are best for you.

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 December.

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.

Cheapflights Insights

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

What is the cheapest time of day to fly from PHL to CWL?

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?

Can I find deals for flights from Philadelphia to Cardiff that include hotel bookings?

How can I find direct flights from Philadelphia to Cardiff?

Can I find deals for business class flights from Philadelphia to Cardiff?

Traveling to a place near Cardiff?

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Best flights from Philadelphia to Cardiff
Discover carefully curated flight deals from Philadelphia to Cardiff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.