Cheap flights from Cardiff to London from £56

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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — LON
23 Jul — 30 Jul1
1 adult

Cheap 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 18 July 2025.

Round-trip from

£107

One-way from

£56

Popular in

June

Cheapest in

May

Average price

£177

Good round-trip deal

£652 or less
Ryanair
  • Ryanair
  • 9/8-13/8
  • 2 total stops
  • 19h 10m total
  • Cardiff to London
Ryanair
  • Ryanair
  • 29/9
  • 1 total stop
  • 25h 10m total
  • Cardiff to London
High demand for flights, 6% potential price rise
Cheapest flight prices on average. 8% potential price decrease (£19 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Cardiff Wales to London (LON).

Find flight deals from Cardiff to London

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 18 July 2025.

Sat 9/809:00CWL - STN
1 stop7h 35mRyanair
Wed 13/819:50STN - CWL
1 stop11h 35mRyanair
Deal found 16/7£107
Sat 30/809:00CWL - LTN
1 stop12h 45mRyanair
Sat 6/922:10LTN - CWL
1 stop12h 25mRyanair
Deal found 16/7£110
Sat 30/809:00CWL - LGW
1 stop10h 35mRyanair
Sat 6/920:20LGW - CWL
1 stop14h 15mRyanair
Deal found 16/7£112
Thu 4/907:55CWL - LGW
1 stop12h 15mMultiple Airlines
Wed 10/905:20LGW - CWL
2 stops26h 05mMultiple Airlines
Deal found 18/7£148
Mon 1/913:10CWL - STN
2 stops18h 15mMultiple Airlines
Mon 8/908:15STN - CWL
1 stop4h 30mMultiple Airlines
Deal found 17/7£151
Tue 26/816:20CWL - LTN
2 stops16h 15mMultiple Airlines
Fri 29/821:05LTN - CWL
1 stop10h 25mMultiple Airlines
Deal found 17/7£152
Thu 14/807:55CWL - LHR
1 stop7h 00mMultiple Airlines
Wed 20/819:35LHR - CWL
1 stop11h 50mMultiple Airlines
Deal found 16/7£198
Sat 4/1009:45CWL - LHR
1 stop11h 10mKLM
Sat 11/1008:40LHR - CWL
1 stop8h 25mKLM
Deal found 17/7£267
Tue 12/809:50CWL - LCY
1 stop7h 30mKLM
Tue 19/810:00LCY - CWL
1 stop6h 45mKLM
Deal found 17/7£272
Mon 1/913:10CWL - LCY
1 stop8h 30mMultiple Airlines
Mon 8/906:45LCY - CWL
1 stop6h 00mMultiple Airlines
Deal found 18/7£342
Thu 4/912:00CWL - LHR
1 stop8h 45mBritish Airways
Wed 10/907:40LHR - CWL
1 stop3h 50mBritish Airways
Deal found 18/7£349
Sat 4/1012:00CWL - LCY
1 stop24h 40mAer Lingus
Sat 11/1012:10LCY - CWL
1 stop23h 20mAer Lingus
Deal found 17/7£351

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 18 July 2025.
Use the filters below to find and compare flights from Cardiff to London that are best for you.

Fly from

Cardiff

Fly to

London

Route

Depart

Return

Price

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Sat 9/8

09:00-16:35

1 stop7h 35m

London Stansted

Wed 13/8

19:50-07:25

1 stop11h 35m

£107

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Sat 30/8

09:00-21:45

1 stop12h 45m

London Luton

Sat 6/9

22:10-10:35

1 stop12h 25m

£110

CardiffLondon

CWL - LGW

CWLLGW

Cardiff Wales

Sat 30/8

09:00-19:35

1 stop10h 35m

London Gatwick

Sat 6/9

20:20-10:35

1 stop14h 15m

£112

CardiffLondon

CWL - LGW

CWLLGW

Cardiff Wales

Thu 4/9

07:55-20:10

1 stop12h 15m

London Gatwick

Wed 10/9

05:20-07:25

2 stops26h 05m

£148

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Mon 1/9

13:10-07:25

2 stops18h 15m

London Stansted

Mon 8/9

08:15-12:45

1 stop4h 30m

£151

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Tue 26/8

16:20-08:35

2 stops16h 15m

London Luton

Fri 29/8

21:05-07:30

1 stop10h 25m

£152

CardiffLondon

CWL - LHR

CWLLHR

Cardiff Wales

Thu 14/8

07:55-14:55

1 stop7h 00m

London Heathrow

Wed 20/8

19:35-07:25

1 stop11h 50m

£198

CardiffLondon

CWL - LHR

CWLLHR

Cardiff Wales

Sat 4/10

09:45-20:55

1 stop11h 10m

London Heathrow

Sat 11/10

08:40-17:05

1 stop8h 25m

£267

CardiffLondon

CWL - LCY

CWLLCY

Cardiff Wales

Tue 12/8

09:50-17:20

1 stop7h 30m

London City

Tue 19/8

10:00-16:45

1 stop6h 45m

£272

CardiffLondon

CWL - LCY

CWLLCY

Cardiff Wales

Mon 1/9

13:10-21:40

1 stop8h 30m

London City

Mon 8/9

06:45-12:45

1 stop6h 00m

£342

Flights are sorted by cheapest return flights first.

Deals found on 17/7

Showing 1-10 of 26 results
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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 month to book a flight from Cardiff to London?

Currently, January is the cheapest month in which you can book a flight from Cardiff to London (average of £112). Flying from Cardiff to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 18 July 2025.

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 45% on your trip compared to booking a flight at midday.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 18 July 2025.
Read reviews from past customers who have flown with KLM, Aer Lingus, andRyanair from Cardiff to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 1 airline has flights from the Cardiff airport to London. It is only a 9.1 mi journey to Cardiff Wales (CWL) from Cardiff’s city center.

  • What are the cheapest airlines flying from Cardiff to London round-trip?

    Flying on Ryanair is currently your cheapest option to London, with prices starting at £107. Additional return tickets that might be worth considering are offered by KLM and British Airways, with the lowest prices starting at £267 and £349, respectively. Ryanair is priced at 66% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Cardiff to London one-way?

    The cheapet airlines for a one-way flight from Cardiff to London are Ryanair (£56), KLM (£205), and British Airways (£278).

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

  • What are the cheapest flights from Cardiff to London?

    While on average a flight from Cardiff to London is generally £1,219, our data shows the cheapest flight currently is £574. When looking at the most popular route, (Cardiff Wales - London Heathrow), you can expect to pay £201 for that flight.

  • 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.

  • What is the cheapest month to book a flight from Cardiff to London?

    Currently, January is the cheapest month in which you can book a flight from Cardiff to London (average of £112). Flying from Cardiff to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from Cardiff to London

Discover the top airline that operate flights from Cardiff to London. 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 18 July 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£219Average£393FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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

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

Need flexible booking options for your flight to London from Cardiff? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

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

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