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Cheap flights from Cardiff to Pennsylvania from £304

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — PHL
24 Aug — 31 Aug1
1 adult

Cheap flight deals from Cardiff to Pennsylvania

Keep the following information in mind while searching for Cardiff to Pennsylvania flight deals. Data was last updated 19 August 2025.

Round-trip from

£396

One-way from

£304
4/9-10/9
  • 4/9-10/9
  • 2 total stops
  • 22h 00m total
  • Cardiff to Pennsylvania
Search Deals
23/9
  • 23/9
  • 2 total stops
  • 24h 00m total
  • Cardiff to Pennsylvania
Search Deals

Find flight deals from Cardiff to Pennsylvania

Cheapest flights from Cardiff to Pennsylvania
Explore the most affordable flight options available from Cardiff to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Thu 4/907:55CWL - IAD
1 stop12h 55mMultiple Airlines
Wed 10/917:20IAD - CWL
1 stop9h 05mMultiple Airlines
Deal found 18/8£396
Tue 16/920:20CWL - JFK
2 stops31h 40mMultiple Airlines
Mon 22/900:40JFK - CWL
2 stops26h 15mMultiple Airlines
Deal found 17/8£451
Wed 1/1009:50CWL - JFK
1 stop10h 35mDelta
Wed 8/1010:30JFK - CWL
2 stops17h 45mDelta
Deal found 17/8£468
Tue 16/909:50CWL - LGA
2 stops14h 39mDelta
Tue 23/915:00LGA - CWL
2 stops13h 15mDelta
Deal found 17/8£472
Tue 16/909:50CWL - JFK
1 stop14h 15mVirgin Atlantic
Tue 23/914:35JFK - CWL
2 stops13h 40mVirgin Atlantic
Deal found 17/8£474
Tue 16/909:50CWL - EWR
2 stops14h 40mDelta
Tue 23/915:21EWR - CWL
2 stops12h 54mDelta
Deal found 17/8£475
Wed 1/1009:50CWL - EWR
2 stops18h 11mDelta
Wed 8/1015:40EWR - CWL
2 stops12h 35mDelta
Deal found 17/8£485
Mon 8/1210:20CWL - JFK
1 stop14h 00mMultiple Airlines
Tue 23/1218:50JFK - CWL
1 stop10h 00mMultiple Airlines
Deal found 18/8£497
Thu 20/1110:20CWL - JFK
1 stop14h 00mKLM
Thu 27/1118:50JFK - CWL
1 stop17h 05mKLM
Deal found 17/8£499
Mon 15/1210:20CWL - JFK
1 stop14h 00mMultiple Airlines
Tue 23/1218:50JFK - CWL
1 stop17h 05mMultiple Airlines
Deal found 18/8£500
Thu 20/1110:20CWL - EWR
2 stops17h 43mDelta
Thu 27/1111:05EWR - CWL
2 stops17h 45mDelta
Deal found 17/8£507
Thu 20/1110:20CWL - LGA
2 stops18h 23mDelta
Thu 27/1112:00LGA - CWL
2 stops16h 50mDelta
Deal found 17/8£507

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Pennsylvania 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 858,174 searches. Data last updated 19 August 2025.
Use the filters below to find and compare flights from Cardiff to Pennsylvania that are best for you.

Fly from

Cardiff

Fly to

Pennsylvania

Route

Depart

Return

Price

CardiffWashington, D.C.

CWL - IAD

CWLIAD

Cardiff Wales

Thu 4/9

07:55-15:50

1 stop12h 55m

Washington, D.C. Dulles Intl

Wed 10/9

17:20-07:25

1 stop9h 05m

£396

CardiffNew York

CWL - JFK

CWLJFK

Cardiff Wales

Tue 16/9

20:20-23:00

2 stops31h 40m

New York John F Kennedy Intl

Mon 22/9

00:40-07:55

2 stops26h 15m

£451

CardiffNew York

CWL - JFK

CWLJFK

Cardiff Wales

Tue 16/9

17:15-15:25

1 stop27h 10m

New York John F Kennedy Intl

Tue 23/9

17:30-16:45

1 stop18h 15m

£468

CardiffNew York

CWL - JFK

CWLJFK

Cardiff Wales

Wed 1/10

09:50-15:25

1 stop10h 35m

New York John F Kennedy Intl

Wed 8/10

10:30-09:15

2 stops17h 45m

£468

CardiffNew York

CWL - JFK

CWLJFK

Cardiff Wales

Wed 1/10

09:50-15:25

1 stop10h 35m

New York John F Kennedy Intl

Wed 8/10

14:40-09:15

2 stops13h 35m

£468

CardiffNew York

CWL - JFK

CWLJFK

Cardiff Wales

Wed 1/10

09:50-15:25

1 stop10h 35m

New York John F Kennedy Intl

Wed 8/10

18:25-09:15

1 stop9h 50m

£468

CardiffNew York

CWL - LGA

CWLLGA

Cardiff Wales

Tue 16/9

09:50-19:29

2 stops14h 39m

New York LaGuardia

Tue 23/9

15:00-09:15

2 stops13h 15m

£472

CardiffNew York

CWL - LGA

CWLLGA

Cardiff Wales

Wed 1/10

09:50-19:29

2 stops14h 39m

New York LaGuardia

Wed 8/10

16:00-09:15

2 stops12h 15m

£472

CardiffNew York

CWL - JFK

CWLJFK

Cardiff Wales

Tue 16/9

09:50-19:05

1 stop14h 15m

New York John F Kennedy Intl

Tue 23/9

14:35-09:15

2 stops13h 40m

£474

CardiffNewark

CWL - EWR

CWLEWR

Cardiff Wales

Tue 16/9

09:50-19:30

2 stops14h 40m

Newark

Tue 23/9

15:21-09:15

2 stops12h 54m

£475

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 33 results
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Best time to book a flight from Cardiff to Pennsylvania

Have a flexible travel schedule? Discover the best time to fly to Pennsylvania from Cardiff with our price prediction graph.
Estimated return 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 Pennsylvania

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

Currently, March is the cheapest month in which you can book a flight from Cardiff to Pennsylvania (average of £648). Flying from Cardiff to Pennsylvania in July is currently the most expensive (average of £839). 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.

Reviews of airlines servicing Pennsylvania

Get insights into the airlines that provide service to Pennsylvania. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pennsylvania. Reviews last updated 19 August 2025.
Check out reviews from past customers who have flown with KLM from Cardiff to Pennsylvania to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,386 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.3

Boarding

7.8

Crew

8.4

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
1,386 reviews
KLM
7.8
Good
1,386 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.3

Boarding

7.8

Crew

8.4

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

Find useful and relevant information for your journey from Cardiff to Pennsylvania. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Cardiff to Pennsylvania?

    Located just 9.1 mi from the city center, Cardiff Wales (CWL) is the airport most travelers will use when flying to Pennsylvania from Cardiff.

  • How long is the flight from Cardiff to Pennsylvania?

    Airlines like KLM, Delta, and Virgin Atlantic fly from Cardiff to Pennsylvania in about 10h 35m. The time it takes to get you to your destination can typically vary by up to 16h 35m. The distance between Cardiff and Pennsylvania is about 3323 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Cardiff to Pennsylvania?

    While some choose either Cardiff Wales - Newark or Cardiff Wales - New York LaGuardia, Cardiff Wales - New York John F Kennedy Intl is the most popular route from Cardiff to Pennsylvania.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Cardiff to Pennsylvania (average of £648). Flying from Cardiff to Pennsylvania in July is currently the most expensive (average of £839). 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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Alternative routes for Cardiff to Pennsylvania

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Cardiff to Pennsylvania

Discover the top airline that operate flights from Cardiff to Pennsylvania. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£527Average£579FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Cardiff to Pennsylvania?

Deals for Cardiff to Pennsylvania flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Pennsylvania?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Cardiff to Pennsylvania for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Cardiff to Pennsylvania with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Cardiff to Pennsylvania flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Cardiff to Pennsylvania become cheaper?

Not ready to book yet? You can track prices for flights from Cardiff to Pennsylvania on Cheapflights with our Price Alert feature and get notified when better prices are available.

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