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

Currently, February is the cheapest month in which you can book a flight from Philadelphia to Cardiff (average of $773). Flying from Philadelphia to Cardiff in June is currently the most expensive (average of $1,622). 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.

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).

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.

$448+ Flights from Philadelphia to Cardiff

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Cheap flight deals from Philadelphia to Cardiff

Round-trip from	$892 (Kiwi.com)

From Philadelphia to Cardiff Wales

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Find 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 July 30, 2025.

Fri 9/1210:20 amPHL - CWL

2 stops16h 10mMultiple Airlines

Fri 9/1912:25 pmCWL - PHL

1 stop11h 35mMultiple Airlines

Deal found 7/29

$892

Fri 9/1212:17 pmPHL - CWL

2 stops15h 53mKLM

Fri 9/199:50 amCWL - PHL

2 stops20h 04mKLM

Deal found 7/29

$960

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 July 30, 2025.

Fri 9/1210:20 amPHL - CWL

2 stops16h 10mMultiple Airlines

Fri 9/1912:25 pmCWL - PHL

1 stop11h 35mMultiple Airlines

Deal found 7/29

$892

Fri 9/1212:17 pmPHL - CWL

2 stops15h 53mKLM

Fri 9/199:50 amCWL - PHL

2 stops20h 04mKLM

Deal found 7/29

$960

Last-minute flights from Philadelphia to Cardiff
Discover last-minute flight deals from Philadelphia to Cardiff. Data last updated July 30, 2025 and is based on user searches.

Sun 8/311:37 amPHL - CWL

2 stops16h 38mKLM

Tue 8/59:50 amCWL - PHL

2 stops16h 11mKLM

Deal found 7/30

$1,264

Sun 8/36:30 amPHL - CWL

2 stops25h 15mMultiple Airlines

Tue 8/54:20 pmCWL - PHL

1 stop31h 40mMultiple Airlines

Deal found 7/30

$1,451

One-way flights from Philadelphia to Cardiff
Search for one-way flight options from Philadelphia to Cardiff. Find affordable one-way fares based on user searches. Data last updated July 30, 2025.

Sat 8/25:36 pmPHL - CWL

3 stops57h 29mMultiple Airlines

Deal found 7/29

$448

Cheapflights Fare Finder

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

Fri 9/12

10:20 am-7:30 am

2 stops16h 10m

Cardiff Wales

Fri 9/19

12:25 pm-7:00 pm

1 stop11h 35m

$892

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Fri 9/12

12:17 pm-9:10 am

2 stops15h 53m

Cardiff Wales

Fri 9/19

9:50 am-12:54 am

2 stops20h 04m

$960

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Sat 8/2

5:36 pm-8:05 am

3 stops57h 29m

$448

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 at noon, when flights are generally more expensive, you can save up to 13% on flights from Philadelphia to Cardiff by exploring options for tickets in the morning.

Reviews of airlines servicing Cardiff

Peruse reviews from past customers who have flown with KLM from Philadelphia to Cardiff to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,383 reviews

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

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, February is the cheapest month in which you can book a flight from Philadelphia to Cardiff (average of $773). Flying from Philadelphia to Cardiff in June is currently the most expensive (average of $1,622). 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.

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$448+ 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 8/2. 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

Round-trip from

Find flight deals from Philadelphia to Cardiff

Cheapest flights from Philadelphia to CardiffExplore 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 July 30, 2025.

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 July 30, 2025.

Cheapflights Fare Finder

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

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?

Find hourly flight availability from Philadelphia to Cardiff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

Reviews of airlines servicing Cardiff

Peruse reviews from past customers who have flown with KLM from Philadelphia to Cardiff to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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?

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

Traveling to a place near Cardiff?

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Alternative routes for Philadelphia to Cardiff

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Travel Smart

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 July 30, 2025.