Cheap flights from London to Cardiff from £78

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Cardiff departing on 28/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from London to Cardiff

Cheap return flights

Ryanair Logo
10:45 - 15:55STN-CWL
5h 10m1 stop
Ryanair Logo
16:20 - 22:10CWL-STN
5h 50m1 stop
£100Ryanair
Find Deal
Tue, 9 Sep - Tue, 16 Sep
Ryanair Logo
06:25 - 12:45STN-CWL
6h 20m1 stop
Ryanair Logo
16:20 - 22:10CWL-STN
5h 50m1 stop
£101Ryanair
Find Deal
Mon, 15 Sep - Tue, 16 Sep
Ryanair Logo
11:15 - 15:55STN-CWL
4h 40m1 stop
Ryanair Logo
16:20 - 22:10CWL-STN
5h 50m1 stop
£102Ryanair
Find Deal
Tue, 9 Sep - Tue, 16 Sep
Ryanair Logo
06:25 - 12:45STN-CWL
6h 20m1 stop
Ryanair Logo
16:20 - 22:10CWL-STN
5h 50m1 stop
£103Ryanair
Find Deal
Mon, 15 Sep - Tue, 16 Sep
 Logo
17:35 - 07:25LGW-CWL
13h 50m1 stop
 Logo
20:30 - 09:00CWL-LGW
12h 30m1 stop
Wed, 10 Sep - Wed, 17 Sep
 Logo
22:00 - 07:25LGW-CWL
9h 25m1 stop
 Logo
20:30 - 09:00CWL-LGW
12h 30m1 stop
Wed, 10 Sep - Wed, 17 Sep
KLM Logo
08:40 - 16:45LHR-CWL
8h 05m1 stop
KLM Logo
17:15 - 20:50CWL-LHR
3h 35m1 stop
£218KLM
Find Deal
Tue, 6 Jan - Fri, 9 Jan
KLM Logo
08:40 - 16:45LHR-CWL
8h 05m1 stop
KLM Logo
17:15 - 20:55CWL-LHR
3h 40m1 stop
£220KLM
Find Deal
Fri, 10 Oct - Mon, 13 Oct
British Airways Logo
07:40 - 11:30LHR-CWL
3h 50m1 stop
British Airways Logo
12:00 - 19:50CWL-LHR
7h 50m1 stop
£352British Airways
Find Deal
Wed, 10 Sep - Mon, 15 Sep
British Airways Logo
15:00 - 11:30LCY-CWL
20h 30m1 stop
British Airways Logo
12:00 - 16:05CWL-LCY
4h 05m1 stop
£447British Airways
Find Deal
Wed, 10 Sep - Mon, 15 Sep

KLM flights from London to Cardiff

Our best KLM deals on London to Cardiff flight tickets
KLM
6 Jan
LHR08:40London Heathrow
8h 05m
1 stop
CWL16:45Cardiff Wales
9 Jan
CWL17:15Cardiff Wales
3h 35m
1 stop
LHR20:50London Heathrow
KLM
10 Oct
LHR08:40London Heathrow
8h 05m
1 stop
CWL16:45Cardiff Wales
13 Oct
CWL17:15Cardiff Wales
3h 40m
1 stop
LHR20:55London Heathrow
KLM
25 Sept
LCY07:45London City
9h 00m
1 stop
CWL16:45Cardiff Wales
30 Sept
CWL09:50Cardiff Wales
7h 30m
1 stop
LCY17:20London City

Ryanair flights from London to Cardiff

Our best Ryanair deals on London to Cardiff flight tickets
Ryanair
9 Sept
STN10:45London Stansted
5h 10m
1 stop
CWL15:55Cardiff Wales
16 Sept
CWL16:20Cardiff Wales
5h 50m
1 stop
STN22:10London Stansted
Ryanair
15 Sept
STN06:25London Stansted
6h 20m
1 stop
CWL12:45Cardiff Wales
16 Sept
CWL16:20Cardiff Wales
5h 50m
1 stop
STN22:10London Stansted
Ryanair
9 Sept
STN11:15London Stansted
4h 40m
1 stop
CWL15:55Cardiff Wales
16 Sept
CWL16:20Cardiff Wales
5h 50m
1 stop
STN22:10London Stansted

momondo Fare Finder

 
Customise your flight search to find flights from London to Cardiff 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, momondo users made 279,928 searches. Data last updated 30 July 2025.
Use the filters below to find and compare flights from London to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonCardiff

STN - CWL

STNCWL

London Stansted

Tue 9/9

10:45-15:55

1 stop5h 10m

Cardiff Wales

Tue 16/9

16:20-22:10

1 stop5h 50m

£100

LondonCardiff

STN - CWL

STNCWL

London Stansted

Mon 15/9

06:25-12:45

1 stop6h 20m

Cardiff Wales

Tue 16/9

16:20-22:10

1 stop5h 50m

£101

LondonCardiff

STN - CWL

STNCWL

London Stansted

Tue 9/9

11:15-15:55

1 stop4h 40m

Cardiff Wales

Tue 16/9

16:20-22:10

1 stop5h 50m

£102

LondonCardiff

STN - CWL

STNCWL

London Stansted

Mon 15/9

06:25-12:45

1 stop6h 20m

Cardiff Wales

Tue 16/9

16:20-22:10

1 stop5h 50m

£103

LondonCardiff

LGW - CWL

LGWCWL

London Gatwick

Wed 10/9

17:35-07:25

1 stop13h 50m

Cardiff Wales

Wed 17/9

20:30-09:00

1 stop12h 30m

£109

LondonCardiff

LGW - CWL

LGWCWL

London Gatwick

Wed 10/9

22:00-07:25

1 stop9h 25m

Cardiff Wales

Wed 17/9

20:30-09:00

1 stop12h 30m

£111

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Tue 6/1

08:40-16:45

1 stop8h 05m

Cardiff Wales

Fri 9/1

17:15-20:50

1 stop3h 35m

£218

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Fri 10/10

08:40-16:45

1 stop8h 05m

Cardiff Wales

Mon 13/10

17:15-20:55

1 stop3h 40m

£220

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Wed 10/9

07:40-11:30

1 stop3h 50m

Cardiff Wales

Mon 15/9

12:00-19:50

1 stop7h 50m

£352

LondonCardiff

LCY - CWL

LCYCWL

London City

Wed 10/9

15:00-11:30

1 stop20h 30m

Cardiff Wales

Mon 15/9

12:00-16:05

1 stop4h 05m

£447

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Cardiff from

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

What is the typical price of a round-trip flight between London and Cardiff?

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 £190. If you are unable to visit Cardiff during the month of January, then departing from London during the month April is also very affordable. Most momondo users find prices during this month for around £220.

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 £259. 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 £332.

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 £137. In the afternoon is when there is more demand to fly to Cardiff, so prices are often more expensive at around £313 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

Best price found

£78

Fastest flight time

3h 40m

Direct flights

None

Airports in Cardiff

1 airport
The best one-way flight to Cardiff from London in the past 72 hours is £78. The best return flight deal from London to Cardiff found on momondo in the last 72 hours is £100.
The fastest flight from London to Cardiff takes 3h 40m
There are no direct flights from London to Cardiff. Popular non-direct routes for this connection are London Stansted Airport - Cardiff Wales Airport, London Luton Airport - Cardiff Wales Airport and London Gatwick Airport - Cardiff Wales Airport.
There is 1 airport near Cardiff: Cardiff Wales (CWL)

  • 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 48m 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 40m 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?

  • 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?


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
KLMPriceFrom £197Free CancellationRating
7.8
1,383 reviews
Search KLM flights

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
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.


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Mon 4/8
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Airports servicing Wales