In terms of precipitation, rainfall in Delaware ranges from 73.0 - 108.0 inches per month. July is typically the wettest month, when rainfall can reach 108.0 mm. February is typically the driest time to visit Delaware when rainfall is around 73.0 mm.

If weather is an important factor for your trip to Delaware, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

What is the cheapest time of day to fly from CWL to DE?

When flying from Cardiff to Delaware, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

£303+ Flights from Cardiff to Delaware

Cheap flight deals from Cardiff to Delaware

Round-trip from	£616
One-way from	£303

28/9-5/10
3 total stops
45h 40m total
Cardiff to Delaware

Search Deals

1/9
3 total stops
54h 15m total
Cardiff to Delaware

Search Deals

Find flight deals from Cardiff to Delaware

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 15 August 2025.

Sun 28/911:00CWL - PHL

2 stops34h 25mMultiple Airlines

Sun 5/1020:30PHL - CWL

1 stop11h 15mMultiple Airlines

Deal found 14/8£616

Sun 28/909:50CWL - PHL

2 stops16h 44mDelta

Sun 5/1007:10PHL - CWL

2 stops21h 05mDelta

Deal found 14/8£651

Sat 27/909:45CWL - PHL

2 stops19h 10mKLM

Sat 4/1014:00PHL - CWL

2 stops14h 15mKLM

Deal found 13/8£672

Sat 27/909:00CWL - PHL

1 stop15h 00mMultiple Airlines

Sat 4/1010:20PHL - CWL

2 stops19h 15mMultiple Airlines

Deal found 13/8£726

Best flights from Cardiff to Delaware
Discover carefully curated flight deals from Cardiff to Delaware that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 August 2025.

Sun 28/911:00CWL - PHL

2 stops34h 25mMultiple Airlines

Sun 5/1020:30PHL - CWL

1 stop11h 15mMultiple Airlines

Deal found 14/8£616

Sun 28/909:50CWL - PHL

2 stops16h 44mDelta

Sun 5/1007:10PHL - CWL

2 stops21h 05mDelta

Deal found 14/8£651

Sat 27/909:45CWL - PHL

2 stops19h 10mKLM

Sat 4/1014:00PHL - CWL

2 stops14h 15mKLM

Deal found 13/8£672

Sat 27/909:00CWL - PHL

1 stop15h 00mMultiple Airlines

Sat 4/1010:20PHL - CWL

2 stops19h 15mMultiple Airlines

Deal found 13/8£726

Last-minute flights from Cardiff to Delaware
Discover last-minute flight deals from Cardiff to Delaware. Data last updated 15 August 2025 and is based on user searches.

Sat 27/909:45CWL - PHL

2 stops19h 10mKLM

Sat 4/1014:00PHL - CWL

2 stops14h 15mKLM

Deal found 13/8£672

Sat 27/909:00CWL - PHL

1 stop15h 00mMultiple Airlines

Sat 4/1010:20PHL - CWL

2 stops19h 15mMultiple Airlines

Deal found 13/8£726

Sun 28/911:00CWL - PHL

2 stops34h 25mMultiple Airlines

Sun 5/1020:30PHL - CWL

1 stop11h 15mMultiple Airlines

Deal found 14/8£616

Sun 28/909:50CWL - PHL

2 stops16h 44mDelta

Sun 5/1007:10PHL - CWL

2 stops21h 05mDelta

Deal found 14/8£651

Fly from

Fly to

Route

Depart

Return

Price

CardiffPhiladelphia

CWL - PHL

CWLPHL

Cardiff Wales

Sun 28/9

11:00-16:25

2 stops34h 25m

Philadelphia

Sun 5/10

20:30-12:45

1 stop11h 15m

£616

CardiffPhiladelphia

CWL - PHL

CWLPHL

Cardiff Wales

Sun 28/9

09:50-21:34

2 stops16h 44m

Philadelphia

Sun 5/10

07:10-09:15

2 stops21h 05m

£651

CardiffPhiladelphia

CWL - PHL

CWLPHL

Cardiff Wales

Sat 27/9

09:45-23:55

2 stops19h 10m

Philadelphia

Sat 4/10

14:00-09:15

2 stops14h 15m

£672

CardiffPhiladelphia

CWL - PHL

CWLPHL

Cardiff Wales

Sat 27/9

09:00-19:00

1 stop15h 00m

Philadelphia

Sat 4/10

10:20-10:35

2 stops19h 15m

£726

CardiffPhiladelphia

CWL - PHL

CWLPHL

Cardiff Wales

Mon 1/9

13:10-14:25

3 stops54h 15m

£303

Flights are sorted by cheapest return flights first.

Deals found on 13/8

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

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.
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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Cheapflights helps you search for flights from Cardiff to Delaware via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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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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Cheap flights from Cardiff to Delaware from £303

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.

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 15 August 2025.

Round-trip from

One-way from

Find flight deals from Cardiff to Delaware

Cheapest flights from Cardiff to DelawareExplore 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 15 August 2025.

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 15 August 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Cardiff to Delaware that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Cardiff to Delaware

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?

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

How can I find direct flights from Cardiff to Delaware?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Cardiff to Delaware

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

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

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Travel Smart

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 15 August 2025.