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Cheap flights from Cardiff to London 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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — LON
2 May — 9 May1
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 2 April 2026.

Tue 12/523:15
CWL
-
LTN
1 stop10h 00m
Ryanair
Tue 19/516:10
LTN
-
CWL
1 stop6h 40m
Ryanair
Deal found 28/3£71
Tue 12/523:15
CWL
-
STN
1 stop13h 30m
Ryanair
Tue 19/513:15
STN
-
CWL
1 stop9h 35m
Ryanair
Deal found 28/3£73
Tue 12/523:15
CWL
-
LGW
1 stop11h 50m
Ryanair
Tue 19/511:55
LGW
-
CWL
1 stop10h 55m
Ryanair
Deal found 28/3£75
Mon 27/410:25
CWL
-
LTN
1 stop15h 45m
Multiple Airlines
Wed 29/415:55
LTN
-
CWL
1 stop7h 30m
Multiple Airlines
Deal found 29/3£77
Tue 28/416:15
CWL
-
LGW
1 stop16h 45m
Multiple Airlines
Wed 6/511:45
LGW
-
CWL
1 stop11h 20m
Multiple Airlines
Deal found 29/3£78
Tue 28/416:15
CWL
-
LTN
1 stop9h 40m
Multiple Airlines
Wed 6/519:05
LTN
-
CWL
1 stop4h 00m
Multiple Airlines
Deal found 29/3£78
Tue 12/523:15
CWL
-
STN
2 stops20h 45m
Multiple Airlines
Tue 19/513:15
STN
-
CWL
1 stop9h 35m
Multiple Airlines
Deal found 28/3£87
Tue 19/523:15
CWL
-
STN
1 stop10h 35m
Ryanair
Fri 22/522:50
STN
-
CWL
1 stop8h 05m
Ryanair
Deal found 1/4£89
Wed 13/523:30
CWL
-
STN
1 stop12h 05m
Ryanair
Wed 20/518:00
STN
-
CWL
1 stop5h 05m
Ryanair
Deal found 29/3£91
Mon 27/422:10
CWL
-
STN
2 stops23h 25m
Ryanair
Wed 29/413:10
STN
-
CWL
1 stop10h 15m
Ryanair
Deal found 29/3£92
Tue 28/423:15
CWL
-
STN
2 stops14h 10m
Multiple Airlines
Wed 6/518:00
STN
-
CWL
1 stop5h 05m
Multiple Airlines
Deal found 29/3£93
Tue 28/423:15
CWL
-
STN
1 stop8h 35m
Ryanair
Wed 6/522:00
STN
-
CWL
1 stop24h 25m
Ryanair
Deal found 29/3£93

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 2 April 2026.

Round-trip from

£71

One-way from

£38
Ryanair
  • Ryanair
  • 12/5-19/5
  • 2 total stops
  • 16h 40m total
  • Cardiff to London
Search Deals
Ryanair
  • Ryanair
  • 2/6
  • 1 total stop
  • 8h 35m 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 2 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 - LGW

CWLLGW

Cardiff Wales

Tue 12/5

23:15-11:05

1 stop11h 50m

London Gatwick

Tue 19/5

11:55-22:50

1 stop10h 55m

£75

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Mon 27/4

10:25-02:10

1 stop15h 45m

London Luton

Wed 29/4

15:55-23:25

1 stop7h 30m

£77

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Tue 28/4

16:15-01:55

1 stop9h 40m

London Luton

Wed 6/5

19:05-23:05

1 stop4h 00m

£78

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Tue 12/5

23:15-20:00

2 stops20h 45m

London Stansted

Tue 19/5

13:15-22:50

1 stop9h 35m

£87

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Tue 19/5

23:15-09:50

1 stop10h 35m

London Stansted

Fri 22/5

22:50-06:55

1 stop8h 05m

£89

CardiffLondon

CWL - LTN

CWLLTN

Cardiff Wales

Tue 12/5

23:15-09:15

1 stop10h 00m

London Luton

Tue 19/5

12:50-22:50

2 stops10h 00m

£90

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Wed 13/5

23:30-11:35

1 stop12h 05m

London Stansted

Wed 20/5

18:00-23:05

1 stop5h 05m

£91

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Wed 29/4

23:50-20:30

2 stops20h 40m

London Stansted

Wed 6/5

18:00-23:05

1 stop5h 05m

£93

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Thu 14/5

22:50-07:50

1 stop9h 00m

London Stansted

Thu 21/5

08:30-22:25

1 stop13h 55m

£93

CardiffLondon

CWL - STN

CWLSTN

Cardiff Wales

Thu 14/5

22:50-07:50

1 stop9h 00m

London Stansted

Thu 21/5

06:05-22:25

2 stops16h 20m

£94

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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, September is the cheapest month in which you can book a flight from Cardiff to London (average of £212). Flying from Cardiff to London in May is currently the most expensive (average of £427). 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 2 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 38% 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 45% 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 £113.

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 33% of weekly flights between Cardiff and London have experienced delays in the past year, with the average delay time being 57 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 37% 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 2 April 2026.
Read reviews from past customers who have flown with 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.
Ryanair
6.9
Okay
5,314 reviews
Check prices

Boarding

6.7

Comfort

6.5

Crew

7.5

Entertainment

5.6

Food

6.0

Overall

6.9

Reviews

1 / 20
10.0
Excellent

Caroline,Mar 2026

ALC - BRS

Never had a flight where I thought I would never travel ryan air again .. but I hope I never experience sitting next to the horrible slob I endured on my return journey .. no fault of airline or crew. Though the seats are a fair bit narrow, the lad sitting next to me had part of my seat, he was a big lad to be fair so sat with knees spread wide with his bag in-between them, so I had to sit awkward, then the entire journey had snot running from his nose, he had no tissues .. 😳.. I'm glad I wasn't eating .. anyway, that's the negative done 😆 . My journey on the way out was all positive .. only went downhill on return journey lol.
Ryanair
6.9
Okay
5,314 reviews
Ryanair
6.9
Okay
5,314 reviews
Check prices

Boarding

6.7

Comfort

6.5

Crew

7.5

Entertainment

5.6

Food

6.0

Overall

6.9

Reviews

1 / 20
10.0
Excellent

Caroline,Mar 2026

ALC - BRS

Never had a flight where I thought I would never travel ryan air again .. but I hope I never experience sitting next to the horrible slob I endured on my return journey .. no fault of airline or crew. Though the seats are a fair bit narrow, the lad sitting next to me had part of my seat, he was a big lad to be fair so sat with knees spread wide with his bag in-between them, so I had to sit awkward, then the entire journey had snot running from his nose, he had no tissues .. 😳.. I'm glad I wasn't eating .. anyway, that's the negative done 😆 . My journey on the way out was all positive .. only went downhill on return journey lol.

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 11h 50m. Cardiff and London are separated by a distance of 138 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 City or Cardiff Wales - London Gatwick.

  • 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, September is the cheapest month in which you can book a flight from Cardiff to London (average of £212). Flying from Cardiff to London in May is currently the most expensive (average of £427). 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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