$179 Cheap Flights from London (LHR) to Cardiff (CWL)

View $179 flight on Mon, Dec 15, 2025Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Cardiff International Airport (CWL)

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Cheap Flights from London to Cardiff (LHR-CWL)

Prices were available within the past 7 days and start at $179 for one-way flights and $317 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sat, Nov 29 - Wed, Dec 3
LHR
London
CWL
Cardiff
$317 Roundtrip, found 1 day ago
$317
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Nov 29 from London to Cardiff, returning Wed, Dec 3, priced at $317 found 1 day ago
British Airways
Sat, Nov 29 - Tue, Dec 16
LHR
London
CWL
Cardiff
$317 Roundtrip, found 5 days ago
$317
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Nov 29 from London to Cardiff, returning Tue, Dec 16, priced at $317 found 5 days ago
British Airways
Wed, Dec 3 - Wed, Dec 17
LHR
London
CWL
Cardiff
$319 Roundtrip, found 6 days ago
$319
Roundtrip
found 6 days ago
Select British Airways flight, departing Wed, Dec 3 from London to Cardiff, returning Wed, Dec 17, priced at $319 found 6 days ago
British Airways
Tue, Nov 25 - Wed, Dec 3
LHR
London
CWL
Cardiff
$322 Roundtrip, found 12 hours ago
$322
Roundtrip
found 12 hours ago
Select British Airways flight, departing Tue, Nov 25 from London to Cardiff, returning Wed, Dec 3, priced at $322 found 12 hours ago
British Airways
Sat, Nov 15 - Wed, Dec 3
LHR
London
CWL
Cardiff
$323 Roundtrip, found 5 days ago
$323
Roundtrip
found 5 days ago
Select British Airways flight, departing Sat, Nov 15 from London to Cardiff, returning Wed, Dec 3, priced at $323 found 5 days ago
British Airways
Sat, Nov 29 - Tue, Dec 2
LHR
London
CWL
Cardiff
$325 Roundtrip, found 1 day ago
$325
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Nov 29 from London to Cardiff, returning Tue, Dec 2, priced at $325 found 1 day ago
British Airways
Mon, Nov 24 - Wed, Dec 3
LHR
London
CWL
Cardiff
$327 Roundtrip, found 12 hours ago
$327
Roundtrip
found 12 hours ago
Select British Airways flight, departing Mon, Nov 24 from London to Cardiff, returning Wed, Dec 3, priced at $327 found 12 hours ago
British Airways
Tue, Nov 25 - Tue, Dec 2
LHR
London
CWL
Cardiff
$330 Roundtrip, found 12 hours ago
$330
Roundtrip
found 12 hours ago
Select British Airways flight, departing Tue, Nov 25 from London to Cardiff, returning Tue, Dec 2, priced at $330 found 12 hours ago
British Airways
Sun, Nov 16 - Tue, Dec 2
LHR
London
CWL
Cardiff
$332 Roundtrip, found 5 days ago
$332
Roundtrip
found 5 days ago
Select British Airways flight, departing Sun, Nov 16 from London to Cardiff, returning Tue, Dec 2, priced at $332 found 5 days ago
British Airways
Mon, Dec 1 - Tue, Dec 16
LHR
London
CWL
Cardiff
$333 Roundtrip, found 5 days ago
$333
Roundtrip
found 5 days ago
Select British Airways flight, departing Mon, Dec 1 from London to Cardiff, returning Tue, Dec 16, priced at $333 found 5 days ago

Alternative airports near Cardiff

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cardiff Intl. CWL. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $335
CWL
Cardiff Intl.
CheapestClosest
Average driving time to city center20 min
Flights from $335

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Cardiff Intl. Airport (CWL) cost?
Secure a cheap one-way flight from $179 or cheap return flight from $317 from Heathrow Airport (LHR) to Cardiff Intl. Airport (CWL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Heathrow Airport (LHR) to Cardiff Intl. Airport (CWL)?
The cheapest month to fly from LHR to CWL is November, when there's less demand. Off-peak season is typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Heathrow Airport (LHR) to Cardiff Intl. Airport (CWL)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from LHR to CWL. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Heathrow Airport (LHR) to Cardiff Intl. Airport (CWL)?
You'll need to catch a flight with a layover when traveling from Heathrow Airport (LHR) to Cardiff Intl. Airport (CWL). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from LHR to CWL?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a number of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Heathrow Airport (LHR) to Cardiff Intl. Airport (CWL)?
To avoid possible delays on the Heathrow Airport (LHR) to Cardiff Intl. Airport (CWL) route, fly before 3 PM. Departures 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 Heathrow Airport (LHR) to Cardiff Intl. Airport (CWL) last-minute?
Holding off until just before your departure to book your flight from LHR to CWL often results in higher prices. While it's possible to find some last-minute offers, they aren't always guaranteed. Allow some flexibility in your schedule for the best chance of getting a bargain.
Is it cheaper to book a LHR to CWL flight and hotel package?
Compared with arranging flights and hotels separately, booking a LHR to CWL flight and hotel package with Expedia could lead to significant savings. What's more, managing everything in one place takes the hassle out of travel planning. Simply secure your flights and choose from our wide range of stays, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Cardiff Intl. Airport (CWL)?
If you reserved your LHR to CWL flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

Travel information

Origin airport
Heathrow
Destination airport
Cardiff Intl.
Roundtrip price
$316
Distance
124 mi

Book with confidence

London to Cardiff Flights

The cheapest times to fly from London to Cardiff

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 London to Cardiff are during the month of November. You can find some of the cheapest flights from London to Cardiff with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Cardiff

Sunday is one of the best days to book for cheap flights from London to Cardiff: 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 London to Cardiff

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 London to Cardiff in 2025. You can also book with separate airlines for your outbound and return journeys, from $179 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 London to Cardiff 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 London to Cardiff 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.

 

London to Cardiff Flights

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*Available to One Key members.