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

Ryanair and British Airways are the most popular carriers operating from London to Cardiff Wales

Is flying the fastest way to get from London to Cardiff?

To save time, the fastest way to travel is by train from London to Cardiff on AccesRail. Expect the length of time you’ll spend onboard AccesRail to be about 1h 49m compared to taking a flight from London to Cardiff or a bus from London to Cardiff which have been found to be slower alternatives.

Is flying the cheapest way to get from London to Cardiff?

A bus from London to Cardiff from £14 can save you up to 85% on the cost of your trip compared to booking a flight from London to Cardiff or a train from London to Cardiff.

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

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

How many operators does momondo search for flights from London to Cardiff Wales Airport?

There is 1 operator available for flights from London to Cardiff Wales Airport as of December 2025.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Cardiff Wales Airport.

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

The travel and health documents required for your trip to Cardiff Wales Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cardiff Wales Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£61 Cheap Flights from London to Cardiff in 2025/26

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Find the cheapest flights from London to Cardiff

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

12:00 - 19:40

STN

CWL

7h 40m1 stop

20:05 - 09:50

CWL

STN

13h 45m1 stop

£77Ryanair

Sat, 10 Jan - Sat, 17 Jan

08:50 - 15:30

LGW

CWL

6h 40m1 stop

15:55 - 21:05

CWL

LGW

5h 10m1 stop

£78Ryanair

Wed, 7 Jan - Wed, 14 Jan

06:30 - 15:30

STN

CWL

9h 00m1 stop

15:55 - 21:20

CWL

STN

5h 25m1 stop

£79Ryanair

Wed, 7 Jan - Wed, 14 Jan

12:25 - 19:40

LTN

CWL

7h 15m1 stop

20:05 - 07:35

CWL

LTN

11h 30m1 stop

£79Ryanair

Sat, 10 Jan - Sat, 17 Jan

06:50 - 15:30

LTN

CWL

8h 40m1 stop

15:55 - 20:05

CWL

LTN

4h 10m1 stop

£80Ryanair

Wed, 7 Jan - Wed, 14 Jan

09:15 - 23:05

STN

CWL

13h 50m2 stops

23:30 - 07:50

CWL

STN

8h 20m1 stop

£99Multiple Airlines

Mon, 12 Jan - Mon, 19 Jan

06:30 - 16:45

LHR

CWL

10h 15m1 stop

17:15 - 20:50

CWL

LHR

3h 35m1 stop

£243KLM

Mon, 2 Feb - Fri, 6 Feb

07:45 - 16:45

LCY

CWL

9h 00m1 stop

10:20 - 16:35

CWL

LCY

6h 15m1 stop

£289KLM

Mon, 2 Feb - Fri, 6 Feb

20:05 - 09:50

LCY

CWL

13h 45m1 stop

10:20 - 19:35

CWL

LCY

9h 15m1 stop

£299KLM

Wed, 7 Jan - Wed, 21 Jan

20:05 - 09:50

LCY

CWL

13h 45m1 stop

10:20 - 19:35

CWL

LCY

9h 15m1 stop

£302KLM

Mon, 12 Jan - Mon, 19 Jan

Ryanair flights from London to Cardiff

Our best Ryanair deals on London to Cardiff flight tickets

Ryanair

10 Jan

STN12:00London Stansted

7h 40m

1 stop

CWL19:40Cardiff Wales

17 Jan

CWL20:05Cardiff Wales

13h 45m

1 stop

STN09:50London Stansted

£77

Find similar

Ryanair

7 Jan

LGW08:50London Gatwick

6h 40m

1 stop

CWL15:30Cardiff Wales

14 Jan

CWL15:55Cardiff Wales

5h 10m

1 stop

LGW21:05London Gatwick

£78

Find similar

Ryanair

10 Jan

LTN12:25London Luton

7h 15m

1 stop

CWL19:40Cardiff Wales

17 Jan

CWL20:05Cardiff Wales

11h 30m

1 stop

LTN07:35London Luton

£79

Find similar

KLM flights from London to Cardiff

Our best KLM deals on London to Cardiff flight tickets

KLM

2 Feb

LHR06:30London Heathrow

10h 15m

1 stop

CWL16:45Cardiff Wales

6 Feb

CWL17:15Cardiff Wales

3h 35m

1 stop

LHR20:50London Heathrow

£243

Find similar

KLM

7 Jan

LHR20:25London Heathrow

13h 25m

1 stop

CWL09:50Cardiff Wales

14 Jan

CWL10:20Cardiff Wales

10h 30m

1 stop

LHR20:50London Heathrow

£282

Find similar

KLM

8 Jan

LHR20:25London Heathrow

13h 25m

1 stop

CWL09:50Cardiff Wales

15 Jan

CWL10:20Cardiff Wales

5h 45m

1 stop

LHR16:05London Heathrow

£282

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonCardiff

STN - CWL

STNCWL

London Stansted

Sat 10/1

12:00-19:40

1 stop7h 40m

Cardiff Wales

Sat 17/1

20:05-09:50

1 stop13h 45m

£77

LondonCardiff

LGW - CWL

LGWCWL

London Gatwick

Wed 7/1

08:50-15:30

1 stop6h 40m

Cardiff Wales

Wed 14/1

15:55-21:05

1 stop5h 10m

£78

LondonCardiff

STN - CWL

STNCWL

London Stansted

Wed 7/1

06:30-15:30

1 stop9h 00m

Cardiff Wales

Wed 14/1

15:55-21:20

1 stop5h 25m

£79

LondonCardiff

LTN - CWL

LTNCWL

London Luton

Sat 10/1

12:25-19:40

1 stop7h 15m

Cardiff Wales

Sat 17/1

20:05-07:35

1 stop11h 30m

£79

LondonCardiff

LTN - CWL

LTNCWL

London Luton

Wed 7/1

06:50-15:30

1 stop8h 40m

Cardiff Wales

Wed 14/1

15:55-20:05

1 stop4h 10m

£80

LondonCardiff

STN - CWL

STNCWL

London Stansted

Mon 12/1

09:15-23:05

2 stops13h 50m

Cardiff Wales

Mon 19/1

23:30-07:50

1 stop8h 20m

£99

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Mon 2/2

06:30-16:45

1 stop10h 15m

Cardiff Wales

Fri 6/2

17:15-20:50

1 stop3h 35m

£243

LondonCardiff

LCY - CWL

LCYCWL

London City

Mon 2/2

07:45-16:45

1 stop9h 00m

Cardiff Wales

Fri 6/2

10:20-16:35

1 stop6h 15m

£289

LondonCardiff

LCY - CWL

LCYCWL

London City

Wed 7/1

20:05-09:50

1 stop13h 45m

Cardiff Wales

Wed 21/1

10:20-19:35

1 stop9h 15m

£299

LondonCardiff

LCY - CWL

LCYCWL

London City

Mon 12/1

20:05-09:50

1 stop13h 45m

Cardiff Wales

Mon 19/1

10:20-19:35

1 stop9h 15m

£302

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 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

Prices

Airlines

Other information

What is the cheapest month to fly to Cardiff?

The month of January is, on average, the cheapest month to fly to Cardiff from London, with most prices found around £167. If you are unable to visit Cardiff during the month of January, then departing from London during the month November is also very affordable. Most momondo users find prices during this month for around £217.

What is the cheapest day to depart on your flight to Cardiff?

The cheapest day to depart from London to Cardiff is on a Tuesday. Travellers who choose to depart for Cardiff on a Tuesday will often find tickets for as low as £258. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from London to Cardiff for around £331.

What is the cheapest time of day to depart on your flight to Cardiff?

The cheapest time of day to fly to Cardiff is at midday when flights can be purchased for as low as £136. In the afternoon is when there is more demand to fly to Cardiff, so prices are often more expensive at around £312 per ticket.

When to book flights from London to Cardiff

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

Estimated return price

Cheap London to Cardiff (LON to CWL) flight deals and tips

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

Fastest flight time	3h 45m
Direct flights	None

The fastest flight from London to Cardiff takes 3h 45m

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

Search flight deals

Is flying the fastest way to get from London to Cardiff?
To save time, the fastest way to travel is by train from London to Cardiff on AccesRail. Expect the length of time you’ll spend onboard AccesRail to be about 1h 49m compared to taking a flight from London to Cardiff or a bus from London to Cardiff which have been found to be slower alternatives.
Is flying the cheapest way to get from London to Cardiff?
A bus from London to Cardiff from £14 can save you up to 85% on the cost of your trip compared to booking a flight from London to Cardiff or a train from London to Cardiff.
How far is London to Cardiff Wales by plane?
The distance between London and Cardiff Wales is about 131.3 mi. Typically, this will take 3h 45m by plane in normal conditions.
When did momondo last update prices for flights from London to Cardiff Wales Airport?
Prices for flights from London to Cardiff Wales Airport refresh daily.
How many operators does momondo search for flights from London to Cardiff Wales Airport?
There is 1 operator available for flights from London to Cardiff Wales Airport as of December 2025.
How old do you have to be to fly from London to Cardiff Wales Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Cardiff Wales Airport.
What documentation or ID do you need to fly to Cardiff Wales Airport?
The travel and health documents required for your trip to Cardiff Wales Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cardiff Wales Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from London to Cardiff?
momondo data reveals that the most frequently booked airline on the route from London to Cardiff is KLM, representing 76% of all bookings. The subsequent popular airline is Ryanair at 24%.

Best airlines flying from London to Cardiff

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

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom £210	Free Cancellation	Rating 7.7 1,432 reviews		Search KLM flights

Barry

Bridgend

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cardiff from London.

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

Flights from London 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 London to Cardiff?

momondo helps you find the best flight between London and Cardiff by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Cardiff, momondo offers a useful price alert feature which will track prices for flights to Cardiff from London and alert you when they change.