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Cheap flights from Cardiff to London from £51

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 24/11. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — LON
20 Nov — 27 Nov1
1 adult
1 adult, Economy

Find 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 21 October 2025.

Wed 12/1115:55CWL - STN
1 stop5h 25mRyanair
Sat 15/1115:15STN - CWL
1 stop4h 25mRyanair
Deal found 18/10£101
Wed 3/1215:55CWL - STN
1 stop5h 25mRyanair
Sat 6/1215:15STN - CWL
1 stop4h 25mRyanair
Deal found 20/10£102
Wed 3/1215:55CWL - LTN
1 stop4h 10mRyanair
Sat 6/1212:25LTN - CWL
1 stop7h 15mRyanair
Deal found 20/10£103
Mon 17/1123:30CWL - LGW
1 stop9h 45mRyanair
Mon 24/1117:55LGW - CWL
1 stop5h 10mRyanair
Deal found 18/10£110
Mon 17/1123:30CWL - STN
1 stop10h 20mRyanair
Mon 24/1118:45STN - CWL
1 stop4h 20mRyanair
Deal found 18/10£110
Wed 3/1215:55CWL - LGW
1 stop5h 10mMultiple Airlines
Sat 6/1206:35LGW - CWL
1 stop9h 55mMultiple Airlines
Deal found 20/10£111
Wed 3/1215:55CWL - LTN
1 stop4h 10mRyanair
Wed 10/1206:50LTN - CWL
1 stop8h 40mRyanair
Deal found 18/10£112
Mon 3/1123:30CWL - STN
1 stop8h 20mRyanair
Fri 7/1108:30STN - CWL
1 stop13h 30mRyanair
Deal found 19/10£113
Thu 27/1110:30CWL - LGW
1 stop8h 25mRyanair
Wed 3/1210:10LGW - CWL
1 stop5h 20mRyanair
Deal found 20/10£114
Thu 27/1110:30CWL - STN
1 stop4h 35mRyanair
Wed 3/1208:30STN - CWL
1 stop7h 00mRyanair
Deal found 20/10£114
Thu 27/1110:30CWL - LTN
1 stop12h 35mRyanair
Wed 3/1206:50LTN - CWL
1 stop8h 40mRyanair
Deal found 20/10£114
Wed 12/1115:55CWL - LGW
1 stop5h 10mRyanair
Sat 15/1113:25LGW - CWL
1 stop6h 15mRyanair
Deal found 18/10£115

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 21 October 2025.

Round-trip from

£102

One-way from

£51

Popular in

June

Cheapest in

May

Average price

£428

Good round-trip deal

£668 or less
Ryanair
  • Ryanair
  • 3/12-6/12
  • 2 total stops
  • 9h 50m total
  • Cardiff to London
Search Deals
Ryanair
  • Ryanair
  • 24/11
  • 1 total stop
  • 10h 20m total
  • Cardiff to London
Search Deals
High demand for flights, 7% potential price rise
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Cardiff Wales to London (LON).
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 21 October 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

Wed 12/11

15:55-21:20

1 stop5h 25m

London Stansted

Sat 15/11

15:15-19:40

1 stop4h 25m

£101

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Wed 3/12

15:55-21:20

1 stop5h 25m

London Stansted

Sat 6/12

15:15-19:40

1 stop4h 25m

£102

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Wed 3/12

15:55-20:05

1 stop4h 10m

London Luton

Sat 6/12

12:25-19:40

1 stop7h 15m

£103

CardiffLondon

CWL - LGW

CWLLGW

Cardiff Wales

Mon 17/11

23:30-09:15

1 stop9h 45m

London Gatwick

Mon 24/11

17:55-23:05

1 stop5h 10m

£110

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Mon 17/11

23:30-09:50

1 stop10h 20m

London Stansted

Mon 24/11

18:45-23:05

1 stop4h 20m

£110

CardiffLondon

CWL - LGW

CWLLGW

Cardiff Wales

Wed 3/12

15:55-21:05

1 stop5h 10m

London Gatwick

Sat 6/12

06:35-16:30

1 stop9h 55m

£111

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Wed 3/12

15:55-20:05

1 stop4h 10m

London Luton

Wed 10/12

06:50-15:30

1 stop8h 40m

£112

CardiffLondon

CWL - LGW

CWLLGW

Cardiff Wales

Thu 27/11

10:30-18:55

1 stop8h 25m

London Gatwick

Wed 3/12

10:10-15:30

1 stop5h 20m

£114

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Thu 27/11

10:30-15:05

1 stop4h 35m

London Stansted

Wed 3/12

08:30-15:30

1 stop7h 00m

£114

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Thu 27/11

10:30-23:05

1 stop12h 35m

London Luton

Wed 3/12

06:50-15:30

1 stop8h 40m

£114

Flights are sorted by cheapest return flights first.

Deals found on 18/10

Showing 1-10 of 60 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, April is the cheapest month in which you can book a flight from Cardiff to London (average of £96). Flying from Cardiff to London in May is currently the most expensive (average of £362). 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 21 October 2025.

A simple way to save on the total cost of your ticket is to fly from Cardiff to London in the afternoon. If you’re flexible enough to do this you can expect to save up to 54% 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 68% 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 £106.

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 13m.

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.

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 21 October 2025.
Read reviews from past customers who have flown with KLM and Ryanair 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.
KLM
7.7
Good
1,404 reviews
Check prices

Overall

7.7

Food

7.3

Boarding

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,404 reviews
KLM
7.7
Good
1,404 reviews
Check prices

Overall

7.7

Food

7.3

Boarding

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Ryanair
6.8
Okay
5,176 reviews
KLM
7.7
Good
1,404 reviews
Check prices

Overall

7.7

Food

7.3

Boarding

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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.

  • How long is the flight from Cardiff to London?

    Departing from Cardiff to London will take you 5h 25m. Cardiff and London are separated by a distance of 157 mi.

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

    Flying on KLM is currently your cheapest option to London, with prices starting at £219. KLM is priced at 31% lower than the current average price of a flight leaving 3 months from now.

  • 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 City or Cardiff Wales - London Stansted.

  • What are the cheapest flights from Cardiff to London?

    While on average a flight from Cardiff to London is generally £776, our data shows the cheapest flight currently is £584. When looking at the most popular route, (Cardiff Wales - London Heathrow), you can expect to pay £188 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, April is the cheapest month in which you can book a flight from Cardiff to London (average of £96). Flying from Cardiff to London in May is currently the most expensive (average of £362). 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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See prices for flight routes from nearby airports that may be better suited for you.
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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 21 October 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£219Average£392FlexibilityNo 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 Cardiff to London?

Deals for Cardiff to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Cardiff.

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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