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Cheap flights from Philadelphia to Cardiff from $460

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Cardiff departing on 5/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Philadelphia to Cardiff

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
1:44 pm - 9:15 am
PHL
-
CWL
14h 31m
2 stops
KLM Logo
9:45 am - 12:57 am
CWL
-
PHL
20h 12m
2 stops
$1,081KLM
Thu, May 7 - Thu, May 14
KLM Logo
1:44 pm - 9:15 am
PHL
-
CWL
14h 31m
2 stops
KLM Logo
9:45 am - 12:57 am
CWL
-
PHL
20h 12m
2 stops
$1,092KLM
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
8:25 pm - 10:20 pm
PHL
-
CWL
20h 55m
1 stop
Multiple Airlines Logo
9:00 am - 6:55 pm
CWL
-
PHL
38h 55m
2 stops
$1,168Multiple Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
8:25 pm - 6:55 am
PHL
-
CWL
29h 30m
1 stop
Multiple Airlines Logo
10:50 pm - 6:55 pm
CWL
-
PHL
25h 05m
1 stop
$1,191Multiple Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
8:25 pm - 6:55 am
PHL
-
CWL
29h 30m
1 stop
Multiple Airlines Logo
10:50 pm - 6:55 pm
CWL
-
PHL
25h 05m
1 stop
$1,209Multiple Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
6:31 pm - 6:55 am
PHL
-
CWL
31h 24m
2 stops
Multiple Airlines Logo
10:50 pm - 6:55 pm
CWL
-
PHL
25h 05m
1 stop
$1,216Multiple Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
11:36 am - 10:20 pm
PHL
-
CWL
29h 44m
3 stops
Multiple Airlines Logo
10:50 pm - 9:49 am
CWL
-
PHL
39h 59m
3 stops
$1,420Multiple Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
5:40 pm - 10:20 pm
PHL
-
CWL
23h 40m
2 stops
Multiple Airlines Logo
5:15 pm - 6:55 pm
CWL
-
PHL
30h 40m
3 stops
$1,423Multiple Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
10:25 am - 9:15 am
PHL
-
CWL
17h 50m
2 stops
Multiple Airlines Logo
5:15 pm - 9:33 pm
CWL
-
PHL
33h 18m
3 stops
$1,446Multiple Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
10:05 am - 9:15 am
PHL
-
CWL
18h 10m
3 stops
Multiple Airlines Logo
5:15 pm - 9:33 pm
CWL
-
PHL
33h 18m
3 stops
$1,448Multiple Airlines
Thu, May 7 - Thu, May 14

KLM flights from Philadelphia to Cardiff

Our best KLM deals on Philadelphia to Cardiff flight tickets
KLM
May 7
PHL1:44 pmPhiladelphia
14h 31m
2 stops
CWL9:15 amCardiff Wales
May 14
CWL9:45 amCardiff Wales
20h 12m
2 stops
PHL12:57 amPhiladelphia
$1,081
KLM
May 7
PHL1:44 pmPhiladelphia
14h 31m
2 stops
CWL9:15 amCardiff Wales
May 14
CWL9:45 amCardiff Wales
20h 12m
2 stops
PHL12:57 amPhiladelphia
$1,092
KLM
Mar 28
PHL1:15 pmPhiladelphia
15h 00m
2 stops
CWL8:15 amCardiff Wales
Mar 30
CWL5:15 pmCardiff Wales
28h 18m
2 stops
PHL4:33 pmPhiladelphia
$1,408

Delta flights from Philadelphia to Cardiff

Our best Delta deals on Philadelphia to Cardiff flight tickets
Delta
Mar 30
PHL6:54 pmPhiladelphia
33h 21m
2 stops
CWL9:15 amCardiff Wales
Apr 6
CWL9:45 amCardiff Wales
35h 48m
2 stops
PHL4:33 pmPhiladelphia
$1,107
Delta
Mar 29
PHL6:00 amPhiladelphia
22h 15m
2 stops
CWL9:15 amCardiff Wales
Apr 6
CWL9:45 amCardiff Wales
40h 38m
2 stops
PHL9:23 pmPhiladelphia
$1,108
Delta
Mar 28
PHL5:18 pmPhiladelphia
34h 57m
2 stops
CWL8:15 amCardiff Wales
Apr 6
CWL9:45 amCardiff Wales
35h 48m
2 stops
PHL4:33 pmPhiladelphia
$1,114

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Cardiff 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, momondo users made 832,500 searches. Data last updated March 25, 2026.
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

Cheapest round-trip
Quickest round-trip

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 5/7

1:44 pm-9:15 am

2 stops14h 31m

Cardiff Wales

Thu 5/14

9:45 am-12:57 am

2 stops20h 12m

$1,081

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 5/7

1:44 pm-9:15 am

2 stops14h 31m

Cardiff Wales

Thu 5/14

9:45 am-12:57 am

2 stops20h 12m

$1,092

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 5/7

8:25 pm-10:20 pm

1 stop20h 55m

Cardiff Wales

Thu 5/14

9:00 am-6:55 pm

2 stops38h 55m

$1,168

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 5/7

8:25 pm-6:55 am

1 stop29h 30m

Cardiff Wales

Thu 5/14

10:50 pm-6:55 pm

1 stop25h 05m

$1,191

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 5/7

8:25 pm-6:55 am

1 stop29h 30m

Cardiff Wales

Thu 5/14

10:50 pm-6:55 pm

1 stop25h 05m

$1,209

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 5/7

6:31 pm-6:55 am

2 stops31h 24m

Cardiff Wales

Thu 5/14

10:50 pm-6:55 pm

1 stop25h 05m

$1,216

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 5/7

11:36 am-10:20 pm

3 stops29h 44m

Cardiff Wales

Thu 5/14

10:50 pm-9:49 am

3 stops39h 59m

$1,420

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 5/7

5:40 pm-10:20 pm

2 stops23h 40m

Cardiff Wales

Thu 5/14

5:15 pm-6:55 pm

3 stops30h 40m

$1,423

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 5/7

10:25 am-9:15 am

2 stops17h 50m

Cardiff Wales

Thu 5/14

5:15 pm-9:33 pm

3 stops33h 18m

$1,446

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Thu 5/7

10:05 am-9:15 am

3 stops18h 10m

Cardiff Wales

Thu 5/14

5:15 pm-9:33 pm

3 stops33h 18m

$1,448

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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When to book flights from Philadelphia to Cardiff

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Cardiff according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Cardiff (PHL to CWL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Cardiff

Fastest flight time

14h 31m

Direct flights

None
The fastest flight from Philadelphia to Cardiff takes 14h 31m
There are no direct flights from Philadelphia to Cardiff. There are no popular flight routes from Philadelphia to Cardiff.
Search flight deals

  • How far is Philadelphia to Cardiff Wales by plane?

    The straight-line distance from Philadelphia to Cardiff Wales is 3414.0 mi. In terms of flight time, this usually takes a little over 14h 31m.

  • When did momondo last update prices for flights from Philadelphia Airport to Cardiff Wales Airport?

    Prices for flights from Philadelphia Airport to Cardiff Wales Airport refresh daily.

  • How old do you have to be to fly from Philadelphia Airport to Cardiff Wales Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia Airport to Cardiff Wales Airport.

  • What documentation or ID do you need to fly to Cardiff Wales Airport?

    The travel and health documents you'll need for your trip to Cardiff Wales Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cardiff Wales Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Philadelphia to Cardiff?

    Price Alerts will notify you by email when the price for flights to Cardiff from Philadelphia decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Philadelphia to Cardiff with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Cardiff?

Finding the right flight to Cardiff from Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Cardiff quick and easy, saving you time and money.

Can I find flights from Philadelphia to Cardiff with flexible booking policies on momondo?

Flights from Philadelphia to Cardiff with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Philadelphia to Cardiff?

momondo provides multiple filters to help you find the best flight to Cardiff from Philadelphia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Philadelphia to Cardiff right now. Can momondo alert me if prices change?

Price alerts on flights to Cardiff from Philadelphia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Cardiff trip

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Aer Lingus