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Cheap flights from London to Cardiff from £38

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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CWL
17 May — 24 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Cardiff

Enter your travel dates to find the best prices.

Cheapest flights from London to Cardiff
Explore the most affordable flight options available from London to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2026.

Thu 14/512:00
STN
-
CWL
1 stop10h 25m
Ryanair
Thu 21/522:50
CWL
-
STN
1 stop9h 00m
Ryanair
Deal found 13/4£70
Wed 27/519:05
LTN
-
CWL
1 stop4h 00m
Ryanair
Wed 3/623:30
CWL
-
LTN
1 stop9h 30m
Ryanair
Deal found 12/4£70
Wed 27/516:30
STN
-
CWL
1 stop6h 35m
Ryanair
Wed 3/623:30
CWL
-
STN
1 stop8h 20m
Ryanair
Deal found 12/4£72
Thu 14/517:30
LGW
-
CWL
1 stop4h 55m
Ryanair
Thu 21/522:50
CWL
-
LGW
1 stop9h 30m
Ryanair
Deal found 13/4£73
Fri 29/522:00
LGW
-
CWL
1 stop8h 55m
Ryanair
Fri 5/622:45
CWL
-
LGW
1 stop9h 40m
Ryanair
Deal found 14/4£74
Fri 29/520:25
LTN
-
CWL
1 stop10h 30m
Ryanair
Fri 5/622:45
CWL
-
LTN
1 stop9h 40m
Ryanair
Deal found 14/4£77
Fri 29/518:00
STN
-
CWL
1 stop12h 55m
Ryanair
Sun 31/521:45
CWL
-
STN
1 stop10h 05m
Ryanair
Deal found 13/4£78
Fri 5/622:00
STN
-
CWL
1 stop8h 55m
Ryanair
Mon 8/622:10
CWL
-
STN
1 stop9h 40m
Ryanair
Deal found 12/4£79
Thu 14/515:50
LTN
-
CWL
1 stop6h 35m
Ryanair
Thu 21/522:50
CWL
-
LTN
1 stop10h 40m
Ryanair
Deal found 13/4£80
Tue 23/613:10
LTN
-
CWL
1 stop9h 40m
Multiple Airlines
Tue 30/610:00
CWL
-
LTN
1 stop15h 55m
Multiple Airlines
Deal found 17/4£83
Fri 29/520:00
STN
-
CWL
1 stop10h 55m
Ryanair
Fri 5/622:45
CWL
-
STN
1 stop9h 05m
Ryanair
Deal found 14/4£85
Wed 13/515:35
LTN
-
CWL
2 stops17h 00m
Multiple Airlines
Wed 27/523:30
CWL
-
LTN
1 stop9h 30m
Multiple Airlines
Deal found 15/4£86

Find flight deals from London to Cardiff

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Cardiff (CWL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 April 2026.

Round-trip from

£70

One-way from

£38

Popular in

August

Cheapest in

May

Average price

£137
Ryanair
  • Ryanair
  • 14/5-21/5
  • 2 total stops
  • 19h 25m total
  • London to Cardiff
Search Deals
Ryanair
  • Ryanair
  • 2/6
  • 1 total stop
  • 6h 30m total
  • London to Cardiff
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£62 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 17 April 2026.
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

Cheapest return flight

LondonCardiff

LGW - CWL

LGWCWL

London Gatwick

Thu 14/5

17:30-22:25

1 stop4h 55m

Cardiff Wales

Thu 21/5

22:50-08:20

1 stop9h 30m

£73

LondonCardiff

STN - CWL

STNCWL

London Stansted

Fri 29/5

20:00-06:55

1 stop10h 55m

Cardiff Wales

Fri 5/6

22:45-23:05

2 stops24h 20m

£85

LondonCardiff

LGW - CWL

LGWCWL

London Gatwick

Tue 12/5

06:10-14:20

1 stop8h 10m

Cardiff Wales

Tue 19/5

23:15-08:20

1 stop9h 05m

£86

LondonCardiff

LTN - CWL

LTNCWL

London Luton

Fri 29/5

20:25-06:55

1 stop10h 30m

Cardiff Wales

Sun 31/5

21:45-11:25

1 stop13h 40m

£89

LondonCardiff

STN - CWL

STNCWL

London Stansted

Fri 5/6

13:05-22:20

2 stops9h 15m

Cardiff Wales

Mon 8/6

22:10-09:50

1 stop11h 40m

£90

LondonCardiff

LGW - CWL

LGWCWL

London Gatwick

Mon 11/5

16:15-09:50

1 stop17h 35m

Cardiff Wales

Mon 18/5

22:10-09:10

1 stop11h 00m

£90

LondonCardiff

STN - CWL

STNCWL

London Stansted

Tue 12/5

12:05-22:50

2 stops10h 45m

Cardiff Wales

Tue 19/5

23:15-07:50

1 stop8h 35m

£92

LondonCardiff

LTN - CWL

LTNCWL

London Luton

Tue 23/6

13:10-22:50

1 stop9h 40m

Cardiff Wales

Tue 30/6

10:00-11:00

2 stops25h 00m

£94

LondonCardiff

STN - CWL

STNCWL

London Stansted

Sun 31/5

11:25-21:20

1 stop9h 55m

Cardiff Wales

Mon 1/6

22:10-09:50

1 stop11h 40m

£94

LondonCardiff

STN - CWL

STNCWL

London Stansted

Mon 11/5

08:00-21:45

2 stops13h 45m

Cardiff Wales

Mon 18/5

22:10-07:50

1 stop9h 40m

£97

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from London to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from London 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 London to Cardiff

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

Find hourly flight availability from London to Cardiff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 April 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Cardiff as you normally would.

What’s the top stopover airport for flights from London to Cardiff?

Share of one-stop return flights from London to Cardiff chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Amsterdam (AMS) – chosen by Cheapflights users on 54% of one-stop itineraries from London to Cardiff on Cheapflights.

What’s the cheapest stopover airport for flights from London to Cardiff?

Average return fare for one-stop flights from London to Cardiff, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Dublin (DUB) is the most affordable one-stop option, with an average return flight price of £119.

What’s the fastest stopover option from London to Cardiff?

Shortest average travel time for one-stop one-way flights from London to Cardiff, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Belfast (BHD) have the shortest average one-way travel time for one-stop routes: 3h 36m.

Which airport typically offers the quickest stopover for flights from London to Cardiff?

Average stopover duration for one-stop one-way flights from London to Cardiff, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Belfast (BHD) offer the fastest connection on this route, with an average stopover time of 1h 23m.

Reviews of airlines servicing Cardiff

Get insights into the airlines that provide service to Cardiff. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cardiff. Reviews last updated 17 April 2026.
Check out reviews from past customers who have flown with KLM from London to Cardiff to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,499 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,499 reviews
KLM
7.8
Good
1,499 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

Find useful and relevant information for your journey from London to Cardiff. 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 into for flights to Cardiff from London?

    Most people fly into Cardiff Wales (CWL) if they book a flight to Cardiff from London. On average, Cardiff Wales has 0 inbound flights from London per day from 1 airline. Cardiff Wales is conveniently located just 9.1 mi from Cardiff’s city center.

  • How long is the flight from London to Cardiff?

    There are many flights that can get you from London to Cardiff in 4h 55m. Fly via Ryanair to get the fastest option. The distance between London and Cardiff is about 138 mi.

  • What is the cheapest airline to fly from London to Cardiff round-trip?

    Currently priced at £255, KLM will fly you from London to Cardiff and back. In addition to KLM, many other airlines offer competitively priced options for your trip.

  • What are the most popular routes from London to Cardiff?

    While some choose either London Luton - Cardiff Wales or London City - Cardiff Wales, London Heathrow - Cardiff Wales is the most popular route from London to Cardiff.

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

    Yes. In addition to deals on London to Cardiff flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Cardiff?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Cardiff.

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

    Yes. Cheapflights offers flight deals from London to Cardiff 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

Travelling to a place near Cardiff?

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

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Top airline flying from London to Cardiff

Discover the top airline that operate flights from London to Cardiff. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£255Average£370FlexibilityNo cancel feeOn-time75%
Search KLM flights

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 London to Cardiff?

Cheapflights makes it easy to find London to Cardiff flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Cardiff for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily find flights from London to Cardiff with no change fees.

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

Not ready to book yet? You can track prices for flights from London to Cardiff on Cheapflights with our Price Alert feature and get notified when better prices are available.

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