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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — LON
3 Jan — 10 Jan1
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 4 December 2025.

Sat 6/1220:05CWL - STN
1 stop11h 45mRyanair
Sat 13/1210:15STN - CWL
1 stop9h 25mRyanair
Deal found 2/12£86
Wed 31/1207:55CWL - STN
2 stops13h 50mRyanair
Wed 7/106:30STN - CWL
1 stop9h 00mRyanair
Deal found 3/12£107
Thu 18/1216:30CWL - STN
1 stop6h 20mMultiple Airlines
Mon 22/1209:15STN - CWL
2 stops13h 50mMultiple Airlines
Deal found 3/12£123
Thu 18/1216:30CWL - STN
1 stop6h 20mRyanair
Mon 22/1218:45STN - CWL
1 stop4h 20mRyanair
Deal found 3/12£129
Thu 18/1216:30CWL - LGW
1 stop4h 35mRyanair
Mon 22/1217:55LGW - CWL
1 stop5h 10mRyanair
Deal found 3/12£136
Sat 6/1220:05CWL - STN
1 stop13h 45mRyanair
Tue 9/1206:35STN - CWL
1 stop30h 50mRyanair
Deal found 3/12£142
Sat 6/1220:05CWL - STN
1 stop11h 45mMultiple Airlines
Sat 13/1207:05STN - CWL
3 stops34h 55mMultiple Airlines
Deal found 2/12£150
Sat 6/1220:05CWL - LGW
1 stop11h 55mRyanair
Tue 9/1209:40LGW - CWL
2 stops27h 45mRyanair
Deal found 3/12£160
Sat 6/1220:05CWL - LTN
1 stop11h 30mRyanair
Tue 23/1209:00LTN - CWL
1 stop12h 35mRyanair
Deal found 3/12£160
Sat 6/1220:05CWL - STN
2 stops20h 55mMultiple Airlines
Tue 23/1221:20STN - CWL
1 stop9h 40mMultiple Airlines
Deal found 3/12£163
Thu 18/1216:30CWL - LGW
1 stop4h 35mMultiple Airlines
Mon 22/1220:40LGW - CWL
2 stops24h 55mMultiple Airlines
Deal found 3/12£164
Sat 6/1220:05CWL - LGW
1 stop11h 55mMultiple Airlines
Tue 9/1207:00LGW - CWL
1 stop4h 30mMultiple Airlines
Deal found 3/12£166

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 4 December 2025.

Round-trip from

£90

One-way from

£56

Popular in

June

Cheapest in

May

Average price

£302
Ryanair
  • Ryanair
  • 16/1-23/1
  • 2 total stops
  • 14h 25m total
  • Cardiff to London
Ryanair
  • Ryanair
  • 15/1
  • 1 total stop
  • 6h 50m total
  • Cardiff to London
High demand for flights, 9% potential price rise
Cheapest flight prices on average. 7% potential price decrease (£18 potential savings vs. average return price).
Average for round-trip flights in December 2025

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 4 December 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

Fri 16/1

22:25-07:50

1 stop9h 25m

London Stansted

Fri 23/1

17:00-22:00

1 stop5h 00m

£90

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Fri 16/1

22:25-11:55

1 stop13h 30m

London Luton

Fri 23/1

09:05-15:40

1 stop6h 35m

£99

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Wed 31/12

07:55-21:45

2 stops13h 50m

London Stansted

Wed 7/1

06:30-15:30

1 stop9h 00m

£107

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Fri 9/1

22:25-11:55

1 stop13h 30m

London Luton

Thu 15/1

20:20-15:40

2 stops19h 20m

£111

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Fri 9/1

16:05-23:55

1 stop7h 50m

London Stansted

Thu 15/1

18:30-15:40

2 stops21h 10m

£115

CardiffLondon

CWL - LGW

CWLLGW

Cardiff Wales

Fri 16/1

22:25-15:25

2 stops17h 00m

London Gatwick

Fri 23/1

16:10-22:00

1 stop5h 50m

£117

CardiffLondon

CWL - LGW

CWLLGW

Cardiff Wales

Fri 16/1

22:25-09:15

1 stop10h 50m

London Gatwick

Fri 23/1

16:10-22:00

1 stop5h 50m

£119

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Fri 9/1

22:25-21:00

2 stops22h 35m

London Stansted

Thu 15/1

18:30-15:40

2 stops21h 10m

£123

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Thu 18/12

16:30-22:50

1 stop6h 20m

London Stansted

Mon 22/12

09:15-23:05

2 stops13h 50m

£123

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Fri 9/1

22:25-11:55

1 stop13h 30m

London Luton

Thu 15/1

18:05-08:05

1 stop14h 00m

£129

Flights are sorted by cheapest return flights first.

Deals found on 3/12

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 £97). Flying from Cardiff to London in May is currently the most expensive (average of £366). 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 4 December 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 57% on your trip compared to booking a flight in the evening.

How much does it cost for a return flight from Cardiff to London?

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 61% 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 £108.

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 09m.

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 33% of weekly flights between Cardiff and London have experienced delays in the past year, with the average delay time being 70 minutes.

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

Historically, flights departing in the evening 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 Tuesday 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 45% of flights being delayed.

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 4 December 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.

Crew

8.4

Entertainment

7.1

Food

7.2

Boarding

7.8

Overall

7.7

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.

Crew

8.4

Entertainment

7.1

Food

7.2

Boarding

7.8

Overall

7.7

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.

Crew

8.4

Entertainment

7.1

Food

7.2

Boarding

7.8

Overall

7.7

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 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 3h 35m. Cardiff and London are separated by a distance of 124 mi. Both multi-stop and direct flights can be found to your destination and back.

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

  • 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 £97). Flying from Cardiff to London in May is currently the most expensive (average of £366). 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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