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Cheap flights from Cardiff to Delaware from £756

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/11. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — ILG
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Cardiff to Delaware

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Cheapest flights from Cardiff to Delaware
Explore the most affordable flight options available from Cardiff to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Tue 25/1110:20CWL - PHL
2 stops17h 46mDelta
Fri 5/1212:22PHL - CWL
2 stops16h 28mDelta
Deal found 6/11£756
Tue 25/1116:45CWL - PHL
2 stops28h 15mMultiple Airlines
Fri 5/1217:30PHL - CWL
1 stop21h 10mMultiple Airlines
Deal found 6/11£878

Cheap flight deals from Cardiff to Delaware

Keep the following information in mind while searching for Cardiff to Delaware flight deals. Data was last updated 7 November 2025.

Round-trip from

£728
KLM
  • KLM
  • 8/1-16/1
  • 4 total stops
  • 35h 12m total
  • Cardiff to Delaware
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Delaware 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 7 November 2025.
Use the filters below to find and compare flights from Cardiff to Delaware that are best for you.

Fly from

Cardiff

Fly to

Delaware

Route

Depart

Return

Price

CardiffPhiladelphia

CWL - PHL

CWLPHL

Cardiff Wales

Tue 25/11

10:20-23:06

2 stops17h 46m

Philadelphia

Fri 5/12

12:22-09:50

2 stops16h 28m

£756

CardiffPhiladelphia

CWL - PHL

CWLPHL

Cardiff Wales

Tue 25/11

16:45-16:00

2 stops28h 15m

Philadelphia

Fri 5/12

17:30-19:40

1 stop21h 10m

£878

CardiffPhiladelphia

CWL - PHL

CWLPHL

Cardiff Wales

Fri 27/3

10:20-18:57

2 stops36h 37m

Philadelphia

Tue 31/3

13:00-16:45

2 stops22h 45m

£928

CardiffPhiladelphia

CWL - PHL

CWLPHL

Cardiff Wales

Thu 8/1

10:30-19:51

3 stops38h 21m

Philadelphia

Fri 16/1

16:35-19:40

2 stops22h 05m

£966

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Best time to book a flight from Cardiff to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware 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 Delaware
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Delaware. 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 Delaware?

    Most people fly from Cardiff Wales (CWL) if they book a flight from Cardiff to Delaware. Cardiff Wales is conveniently located just 9.1 mi from Cardiff’s city center.

  • How long is the flight from Cardiff to Delaware?

    Airlines like Delta and Air France fly from Cardiff to Delaware in about 17h 46m. The time it takes to get you to your destination can typically vary by up to 18h 51m. Airlines will cover a distance of 3416 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cardiff to Delaware by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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

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

Need flexible booking options for your flight to Delaware from Cardiff? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Delaware from Cardiff today and book when prices fit your budget.

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