When did momondo last update prices for flights from London Heathrow Airport to Cardiff Wales Airport?

Prices for flights from London Heathrow Airport to Cardiff Wales Airport refresh daily.

How old do you have to be to fly from London Heathrow Airport to Cardiff Wales Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Cardiff Wales Airport.

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

The necessary travel and health documents for your Cardiff Wales Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£99 Cheap Flights from London Heathrow Airport to Cardiff in 2026

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Find the cheapest flights from London Heathrow Airport to Cardiff

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

17:45 - 23:05

LHR

CWL

5h 20m1 stop

22:25 - 08:05

CWL

LHR

9h 40m1 stop

£148Multiple Airlines

Mon, 19 Jan - Fri, 23 Jan

20:50 - 15:40

LHR

CWL

18h 50m2 stops

23:30 - 09:05

CWL

LHR

9h 35m1 stop

£149Multiple Airlines

Thu, 22 Jan - Mon, 26 Jan

09:50 - 15:30

LHR

CWL

5h 40m1 stop

15:55 - 21:05

CWL

LHR

5h 10m1 stop

£153Multiple Airlines

Wed, 4 Feb - Wed, 11 Feb

08:50 - 15:30

LHR

CWL

6h 40m1 stop

20:05 - 08:05

CWL

LHR

12h 00m1 stop

£155Multiple Airlines

Wed, 21 Jan - Sat, 24 Jan

08:50 - 23:05

LHR

CWL

14h 15m1 stop

23:30 - 08:05

CWL

LHR

8h 35m1 stop

£158Multiple Airlines

Mon, 2 Feb - Mon, 16 Feb

15:30 - 15:40

LHR

CWL

24h 10m3 stops

23:30 - 09:05

CWL

LHR

9h 35m1 stop

£164Multiple Airlines

Thu, 22 Jan - Mon, 26 Jan

15:10 - 22:00

LHR

CWL

6h 50m1 stop

22:25 - 08:05

CWL

LHR

9h 40m1 stop

£168Multiple Airlines

Fri, 20 Feb - Fri, 27 Feb

08:50 - 22:00

LHR

CWL

13h 10m1 stop

21:20 - 08:05

CWL

LHR

10h 45m1 stop

£173Multiple Airlines

Fri, 23 Jan - Sun, 25 Jan

09:50 - 15:30

LHR

CWL

5h 40m1 stop

15:55 - 21:05

CWL

LHR

5h 10m1 stop

£176Multiple Airlines

Wed, 4 Feb - Wed, 11 Feb

17:45 - 23:05

LHR

CWL

5h 20m1 stop

22:25 - 20:05

CWL

LHR

21h 40m2 stops

£186Multiple Airlines

Mon, 19 Jan - Fri, 23 Jan

KLM flights from London Heathrow Airport to Cardiff

Our best KLM deals on London Heathrow Airport to Cardiff flight tickets

KLM

19 Jun

LHR09:55London Heathrow

6h 50m

1 stop

CWL16:45Cardiff Wales

25 Jun

CWL17:15Cardiff Wales

3h 40m

1 stop

LHR20:55London Heathrow

£223

Find similar

KLM

5 Feb

LHR20:25London Heathrow

13h 25m

1 stop

CWL09:50Cardiff Wales

12 Feb

CWL10:20Cardiff Wales

8h 55m

1 stop

LHR19:15London Heathrow

£256

Find similar

KLM

2 Jul

LHR06:30London Heathrow

10h 15m

1 stop

CWL16:45Cardiff Wales

6 Jul

CWL09:45Cardiff Wales

11h 10m

1 stop

LHR20:55London Heathrow

£262

Find similar

British Airways flights from London Heathrow Airport to Cardiff

Our best British Airways deals on London Heathrow Airport to Cardiff flight tickets

British Airways

16 Jan

LHR19:00London Heathrow

16h 30m

1 stop

CWL11:30Cardiff Wales

19 Jan

CWL12:00Cardiff Wales

4h 05m

1 stop

LHR16:05London Heathrow

£473

Find similar

British Airways

16 Jan

LHR19:00London Heathrow

16h 30m

1 stop

CWL11:30Cardiff Wales

19 Jan

CWL12:00Cardiff Wales

4h 05m

1 stop

LHR16:05London Heathrow

£495

Find similar

British Airways

21 Jan

LHR15:20London Heathrow

16h 45m

2 stops

CWL08:05Cardiff Wales

24 Jan

CWL12:00Cardiff Wales

20h 00m

2 stops

LHR08:00London Heathrow

£660

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Mon 19/1

17:45-23:05

1 stop5h 20m

Cardiff Wales

Fri 23/1

22:25-08:05

1 stop9h 40m

£148

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Thu 22/1

20:50-15:40

2 stops18h 50m

Cardiff Wales

Mon 26/1

23:30-09:05

1 stop9h 35m

£149

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Wed 4/2

09:50-15:30

1 stop5h 40m

Cardiff Wales

Wed 11/2

15:55-21:05

1 stop5h 10m

£153

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Wed 21/1

08:50-15:30

1 stop6h 40m

Cardiff Wales

Sat 24/1

20:05-08:05

1 stop12h 00m

£155

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Mon 2/2

08:50-23:05

1 stop14h 15m

Cardiff Wales

Mon 16/2

23:30-08:05

1 stop8h 35m

£158

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Thu 22/1

15:30-15:40

3 stops24h 10m

Cardiff Wales

Mon 26/1

23:30-09:05

1 stop9h 35m

£164

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Fri 20/2

15:10-22:00

1 stop6h 50m

Cardiff Wales

Fri 27/2

22:25-08:05

1 stop9h 40m

£168

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Fri 23/1

08:50-22:00

1 stop13h 10m

Cardiff Wales

Sun 25/1

21:20-08:05

1 stop10h 45m

£173

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Wed 4/2

09:50-15:30

1 stop5h 40m

Cardiff Wales

Wed 11/2

15:55-21:05

1 stop5h 10m

£176

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Mon 19/1

17:45-23:05

1 stop5h 20m

Cardiff Wales

Fri 23/1

22:25-20:05

2 stops21h 40m

£186

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Cardiff

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Airlines

Other information

What is the cheapest airline that flies from London Heathrow to Cardiff Wales?

British Airways is the most popular carrier operating from London Heathrow to Cardiff Wales

When to book flights from London Heathrow Airport to Cardiff

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Cardiff according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London Heathrow Airport to Cardiff (LHR to CWL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Cardiff

Fastest flight time	5h 40m
Direct flights	None

The fastest flight from London Heathrow Airport to Cardiff takes 5h 40m

There are no direct flights from London Heathrow Airport to Cardiff. There are no popular flight routes from London Heathrow Airport to Cardiff.

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How far is London Heathrow to Cardiff Wales by plane?
London Heathrow and Cardiff Wales are 117.1 mi apart from one another. Typically, this will take 5h 40m by plane in normal conditions.
When did momondo last update prices for flights from London Heathrow Airport to Cardiff Wales Airport?
Prices for flights from London Heathrow Airport to Cardiff Wales Airport refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to Cardiff Wales Airport?
There is 1 operator available for flights from London Heathrow Airport to Cardiff Wales Airport as of January 2026.
How old do you have to be to fly from London Heathrow Airport to Cardiff Wales Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Cardiff Wales Airport.
What documentation or ID do you need to fly to Cardiff Wales Airport?
The necessary travel and health documents for your Cardiff Wales Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London Heathrow Airport to Cardiff?
momondo data reveals that the most frequently booked airline on the route from London Heathrow Airport to Cardiff is KLM, representing 100% of all bookings.

Best airlines flying from London Heathrow Airport to Cardiff

Compare and see reviews for airlines that fly from London Heathrow Airport to Cardiff with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom £208	Free Cancellation	Rating 7.7 1,434 reviews		Search KLM flights

Barry

Bridgend

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

momondo does allow users to show only those flights to Cardiff from London which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential London to Cardiff flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for London to Cardiff flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.