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$522+ Cheap flights from Cardiff (CWL) to Philadelphia (PHL)

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — PHL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Cardiff to Philadelphia

Cheapest flights from Cardiff to Philadelphia
Explore the most affordable flight options available from Cardiff to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Expedia deal was found by Cheapflights users on 1/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1310:20 am
CWL
-
PHL
2 stops16h 40m
Multiple Airlines
Fri 3/206:25 pm
PHL
-
CWL
2 stops35h 25m
Multiple Airlines
Deal found 1/27$988

Find flight deals from Cardiff to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Philadelphia (PHL). 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$988
(Expedia)

One-way from

$522
(Kiwi.com)
Provider with most accurate pricing for Cardiff Wales-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Cardiff Wales-Philadelphia flights.
Search Deals
From Cardiff Wales to Philadelphia
Search Deals
One-way flight from Cardiff Wales to Philadelphia
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Cardiff to Philadelphia 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 January 29, 2026.
Use the filters below to find and compare flights from Cardiff to Philadelphia that are best for you.

Fly from

Cardiff

Fly to

Philadelphia

Route

Depart

Return

Price

CardiffPhiladelphia

CWL - PHL

CWLPHL

Cardiff Wales

Fri 3/13

10:20 am-11:00 pm

2 stops16h 40m

Philadelphia

Fri 3/20

6:25 pm-9:50 am

2 stops35h 25m

$988

CardiffPhiladelphia

CWL - PHL

CWLPHL

Cardiff Wales

Mon 6/8

11:35 am-8:04 pm

2 stops37h 29m

$522

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Compare providers for flights from Cardiff to Philadelphia

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 Cardiff to Philadelphia in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 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 Cardiff-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cardiff-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cardiff-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cardiff-Philadelphia 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 Cardiff-Philadelphia 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 Cardiff to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Cardiff 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 Cardiff to Philadelphia

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

Currently, January is the cheapest month in which you can book a flight from Cardiff to Philadelphia (average of $520). Flying from Cardiff to Philadelphia in December is currently the most expensive (average of $590). 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 Cardiff to Philadelphia. 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 Cardiff to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Cardiff to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cardiff to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Philadelphia.

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

    Yes. Cheapflights offers flight deals from Cardiff to Philadelphia 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 Cardiff to Philadelphia?

    Currently, January is the cheapest month in which you can book a flight from Cardiff to Philadelphia (average of $520). Flying from Cardiff to Philadelphia in December is currently the most expensive (average of $590). 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

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
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