$1,082 Cheap Flights from Cardiff (CWL) to Philadelphia (PHL)

View $1,082 flight on Tue, Oct 14, 2025Opens in a new window

Popular airlines from Cardiff International Airport (CWL) to Philadelphia Intl. Airport (PHL)

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Cheap Flights from Cardiff to Philadelphia (CWL-PHL)

Prices were available within the past 7 days and start at $1,082 for one-way flights and $1,546 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Loganair
Thu, Aug 21 - Thu, Aug 28
CWL
Cardiff
PHL
Philadelphia
$1,546 Roundtrip, found 4 days ago
$1,546
Roundtrip
found 4 days ago
Select Loganair flight, departing Thu, Aug 21 from Cardiff to Philadelphia, returning Thu, Aug 28, priced at $1,546 found 4 days ago
Loganair
Thu, Aug 21 - Thu, Aug 28
CWL
Cardiff
PHL
Philadelphia
$1,555 Roundtrip, found 4 days ago
$1,555
Roundtrip
found 4 days ago
Select Loganair flight, departing Thu, Aug 21 from Cardiff to Philadelphia, returning Thu, Aug 28, priced at $1,555 found 4 days ago
Loganair
Thu, Aug 21 - Thu, Aug 28
CWL
Cardiff
PHL
Philadelphia
$1,556 Roundtrip, found 4 days ago
$1,556
Roundtrip
found 4 days ago
Select Loganair flight, departing Thu, Aug 21 from Cardiff to Philadelphia, returning Thu, Aug 28, priced at $1,556 found 4 days ago
Loganair
Thu, Aug 21 - Thu, Aug 28
CWL
Cardiff
PHL
Philadelphia
$1,562 Roundtrip, found 4 days ago
$1,562
Roundtrip
found 4 days ago
Select Loganair flight, departing Thu, Aug 21 from Cardiff to Philadelphia, returning Thu, Aug 28, priced at $1,562 found 4 days ago
Loganair
Thu, Aug 21 - Thu, Aug 28
CWL
Cardiff
PHL
Philadelphia
$1,566 Roundtrip, found 4 days ago
$1,566
Roundtrip
found 4 days ago
Select Loganair flight, departing Thu, Aug 21 from Cardiff to Philadelphia, returning Thu, Aug 28, priced at $1,566 found 4 days ago
Loganair
Thu, Aug 21 - Thu, Aug 28
CWL
Cardiff
PHL
Philadelphia
$1,571 Roundtrip, found 4 days ago
$1,571
Roundtrip
found 4 days ago
Select Loganair flight, departing Thu, Aug 21 from Cardiff to Philadelphia, returning Thu, Aug 28, priced at $1,571 found 4 days ago
Loganair
Thu, Aug 21 - Thu, Aug 28
CWL
Cardiff
PHL
Philadelphia
$1,585 Roundtrip, found 4 days ago
$1,585
Roundtrip
found 4 days ago
Select Loganair flight, departing Thu, Aug 21 from Cardiff to Philadelphia, returning Thu, Aug 28, priced at $1,585 found 4 days ago
Loganair
Thu, Aug 21 - Thu, Aug 28
CWL
Cardiff
PHL
Philadelphia
$1,594 Roundtrip, found 4 days ago
$1,594
Roundtrip
found 4 days ago
Select Loganair flight, departing Thu, Aug 21 from Cardiff to Philadelphia, returning Thu, Aug 28, priced at $1,594 found 4 days ago
Loganair
Thu, Aug 21 - Thu, Aug 28
CWL
Cardiff
PHL
Philadelphia
$1,595 Roundtrip, found 4 days ago
$1,595
Roundtrip
found 4 days ago
Select Loganair flight, departing Thu, Aug 21 from Cardiff to Philadelphia, returning Thu, Aug 28, priced at $1,595 found 4 days ago
Loganair
Thu, Aug 21 - Thu, Aug 28
CWL
Cardiff
PHL
Philadelphia
$1,605 Roundtrip, found 4 days ago
$1,605
Roundtrip
found 4 days ago
Select Loganair flight, departing Thu, Aug 21 from Cardiff to Philadelphia, returning Thu, Aug 28, priced at $1,605 found 4 days ago
Flights from Cardiff (CWL) to Philadelphia (PHL)
Origin airport
Cardiff Intl.
Destination airport
Philadelphia Intl.
Roundtrip price
$1,545
Distance
3418 mi

Cardiff to Philadelphia Flights

The cheapest times to fly from Cardiff to Philadelphia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Cardiff to Philadelphia are during the month of August. You can find some of the cheapest flights from Cardiff to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cardiff to Philadelphia

Sunday is one of the best days to book for cheap flights from Cardiff to Philadelphia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Cardiff to Philadelphia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Cardiff to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,082 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Cardiff to Philadelphia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Cardiff to Philadelphia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Cardiff Intl. Airport (CWL) to Philadelphia Intl. Airport (PHL) cost?
Discover the latest flight deals from CWL to PHL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from CWL to PHL?
The cheapest flights from CWL to PHL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from CWL to PHL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CWL to PHL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Cardiff Intl. Airport (CWL) to Philadelphia Intl. Airport (PHL)?
There are no daily direct flights departing from Cardiff Intl. Airport (CWL) to Philadelphia Intl. Airport (PHL). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way in no time at all.
What day of the week has the most flights from CWL to PHL?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cardiff Intl. Airport (CWL) to Philadelphia Intl. Airport (PHL)?
To avoid potential delays on the Cardiff Intl. Airport (CWL) to Philadelphia Intl. Airport (PHL) route, aim to travel before 3 PM. Flights after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Cardiff Intl. Airport (CWL) to Philadelphia Intl. Airport (PHL) last-minute?
Last-minute fares from CWL to PHL are generally more expensive. To secure the lowest rates, start looking for flights as soon as possible. That said, if you're flexible with your travel dates, you may land a cheap fare right before your trip.
Is it cheaper to book a CWL to PHL flight and hotel package?
You'll typically save money by securing a CWL to PHL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've selected your ideal accommodations and flights, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Cardiff Intl. Airport (CWL) to Philadelphia Intl. Airport (PHL)?
It's usually possible to cancel or reschedule your CWL to PHL flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.