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Cheap flights from Cardiff to London from £39

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — LON
30 May — 6 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to London

Enter your travel dates to find the best prices.

Cheapest flights from Cardiff to London
Explore the most affordable flight options available from Cardiff to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2026.

Mon 1/622:10
CWL
-
STN
1 stop9h 40m
Ryanair
Thu 4/613:15
STN
-
CWL
1 stop9h 10m
Ryanair
Deal found 29/4£73
Mon 1/622:10
CWL
-
LGW
1 stop9h 45m
Ryanair
Thu 4/617:30
LGW
-
CWL
1 stop4h 55m
Ryanair
Deal found 29/4£74
Mon 1/622:10
CWL
-
LTN
1 stop11h 05m
Ryanair
Thu 4/615:50
LTN
-
CWL
1 stop6h 35m
Ryanair
Deal found 29/4£74
Fri 12/622:45
CWL
-
LGW
1 stop13h 50m
Ryanair
Fri 19/622:00
LGW
-
CWL
1 stop8h 55m
Ryanair
Deal found 29/4£76
Fri 5/622:45
CWL
-
LTN
1 stop9h 40m
Ryanair
Mon 8/608:15
LTN
-
CWL
1 stop13h 30m
Ryanair
Deal found 27/4£78
Fri 5/622:45
CWL
-
STN
1 stop9h 05m
Ryanair
Mon 8/617:35
STN
-
CWL
1 stop4h 10m
Ryanair
Deal found 27/4£79
Fri 12/622:45
CWL
-
LTN
1 stop9h 40m
Ryanair
Tue 16/616:10
LTN
-
CWL
1 stop6h 40m
Ryanair
Deal found 28/4£79
Fri 5/622:45
CWL
-
LGW
1 stop10h 35m
Ryanair
Mon 8/608:40
LGW
-
CWL
1 stop13h 05m
Ryanair
Deal found 27/4£84
Tue 26/523:15
CWL
-
STN
2 stops13h 15m
Multiple Airlines
Tue 2/616:20
STN
-
CWL
1 stop6h 30m
Multiple Airlines
Deal found 26/4£93
Fri 12/622:45
CWL
-
STN
1 stop9h 05m
Ryanair
Fri 19/613:05
STN
-
CWL
2 stops9h 15m
Ryanair
Deal found 29/4£93
Mon 11/522:10
CWL
-
STN
1 stop9h 40m
Ryanair
Thu 14/518:00
STN
-
CWL
1 stop4h 25m
Ryanair
Deal found 26/4£95
Wed 27/523:30
CWL
-
LTN
1 stop9h 30m
Ryanair
Wed 3/613:50
LTN
-
CWL
1 stop9h 15m
Ryanair
Deal found 28/4£95

Find flight deals from Cardiff to London

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to London (LON). 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 30 April 2026.

Round-trip from

£73

One-way from

£39
Ryanair
  • Ryanair
  • 1/6-4/6
  • 2 total stops
  • 18h 50m total
  • Cardiff to London
Search Deals
Ryanair
  • Ryanair
  • 1/6
  • 1 total stop
  • 11h 05m total
  • Cardiff to London
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to London 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 30 April 2026.
Use the filters below to find and compare flights from Cardiff to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Mon 1/6

22:10-07:50

1 stop9h 40m

London Stansted

Thu 4/6

13:15-22:25

1 stop9h 10m

£73

CardiffLondon

CWL - LGW

CWLLGW

Cardiff Wales

Mon 1/6

22:10-07:55

1 stop9h 45m

London Gatwick

Thu 4/6

17:30-22:25

1 stop4h 55m

£74

CardiffLondon

CWL - LGW

CWLLGW

Cardiff Wales

Fri 12/6

22:45-12:35

1 stop13h 50m

London Gatwick

Fri 19/6

22:00-06:55

1 stop8h 55m

£76

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Fri 5/6

22:45-08:25

1 stop9h 40m

London Luton

Mon 8/6

08:15-21:45

1 stop13h 30m

£78

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Tue 26/5

23:15-12:30

2 stops13h 15m

London Stansted

Tue 2/6

16:20-22:50

1 stop6h 30m

£93

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Mon 11/5

22:10-07:50

1 stop9h 40m

London Stansted

Thu 14/5

18:00-22:25

1 stop4h 25m

£95

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Tue 26/5

23:15-07:50

1 stop8h 35m

London Stansted

Tue 2/6

11:35-22:50

1 stop11h 15m

£96

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Wed 27/5

23:30-09:00

1 stop9h 30m

London Luton

Wed 3/6

15:55-23:05

1 stop7h 10m

£96

CardiffLondon

CWL - LGW

CWLLGW

Cardiff Wales

Mon 11/5

22:10-12:40

1 stop14h 30m

London Gatwick

Fri 15/5

22:00-06:55

1 stop8h 55m

£96

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Tue 26/5

23:15-09:15

1 stop10h 00m

London Luton

Tue 2/6

16:10-22:50

1 stop6h 40m

£96

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Cardiff to London

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

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

Find hourly flight availability from Cardiff to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 April 2026.

A simple way to save on the total cost of your ticket is to fly from Cardiff to London in the morning. If you’re flexible enough to do this you can expect to save up to 34% on your trip compared to booking a flight in the evening.

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

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

Amsterdam (AMS) – chosen by Cheapflights users on 47% of one-stop itineraries from Cardiff to London on Cheapflights.

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

Average return fare for one-stop flights from Cardiff to London, 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 £111.

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

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

Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 4h 16m.

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

Average stopover duration for one-stop one-way flights from Cardiff to London, 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 2h 06m.

How often are flights from Cardiff to London delayed?

About 27% of weekly flights between Cardiff and London have experienced delays in the past year, with the average delay time being 53 minutes.

What is the most punctual flight time for Cardiff to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Cardiff to London flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 32% of flights being delayed.

Related info for your journey

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

    Cardiff Wales (CWL) is the airport you will fly out of if you book a flight from Cardiff to London. You should not have trouble finding flights to London from Cardiff Wales; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Cardiff airport to London. It is only a 9.1 mi journey to Cardiff Wales (CWL) from Cardiff’s city center.

  • How long is the flight from Cardiff to London?

    Departing from Cardiff to London will take you 9h 40m. Cardiff and London are separated by a distance of 157 mi.

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

    The most popular route from Cardiff to London is Cardiff Wales - London Heathrow. You may also consider Cardiff Wales - London Luton or Cardiff Wales - London City.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cardiff to London 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

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