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Cheap flights from London to Cardiff from £42

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Cardiff departing on 23/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from London to Cardiff

Cheap return flights

Enter your travel dates to find the best prices.
Ryanair Logo
13:10 - 22:50
LTN
-
CWL
9h 40m
1 stop
Ryanair Logo
23:15 - 09:15
CWL
-
LTN
10h 00m
1 stop
£70Ryanair
Tue, 21 Apr - Tue, 28 Apr
Ryanair Logo
06:30 - 21:45
STN
-
CWL
15h 15m
1 stop
Ryanair Logo
23:50 - 07:50
CWL
-
STN
8h 00m
1 stop
£71Ryanair
Mon, 20 Apr - Wed, 29 Apr
Ryanair Logo
14:25 - 21:45
LTN
-
CWL
7h 20m
1 stop
Ryanair Logo
23:50 - 15:25
CWL
-
LTN
15h 35m
1 stop
£71Ryanair
Mon, 20 Apr - Wed, 29 Apr
Ryanair Logo
08:30 - 21:20
STN
-
CWL
12h 50m
1 stop
Ryanair Logo
21:45 - 09:50
CWL
-
STN
12h 05m
1 stop
£73Ryanair
Sun, 5 Apr - Sun, 12 Apr
Ryanair Logo
17:35 - 21:45
STN
-
CWL
4h 10m
1 stop
Ryanair Logo
23:50 - 07:50
CWL
-
STN
8h 00m
1 stop
£74Ryanair
Mon, 20 Apr - Wed, 29 Apr
Multiple Airlines Logo
13:30 - 19:40
STN
-
CWL
6h 10m
1 stop
Multiple Airlines Logo
23:30 - 07:50
CWL
-
STN
8h 20m
1 stop
£79Multiple Airlines
Sat, 21 Mar - Mon, 23 Mar
KLM Logo
20:15 - 09:15
LCY
-
CWL
13h 00m
1 stop
KLM Logo
09:45 - 19:45
CWL
-
LCY
10h 00m
1 stop
£231KLM
Mon, 20 Apr - Wed, 29 Apr
KLM Logo
08:25 - 16:45
LCY
-
CWL
8h 20m
1 stop
KLM Logo
09:45 - 17:20
CWL
-
LCY
7h 35m
1 stop
£241KLM
Mon, 20 Apr - Wed, 29 Apr
KLM Logo
20:15 - 09:15
LCY
-
CWL
13h 00m
1 stop
KLM Logo
09:45 - 18:30
CWL
-
LCY
8h 45m
1 stop
£252KLM
Mon, 20 Apr - Mon, 27 Apr
KLM Logo
20:15 - 09:15
LCY
-
CWL
13h 00m
1 stop
KLM Logo
09:45 - 18:30
CWL
-
LCY
8h 45m
1 stop
£265KLM
Wed, 8 Apr - Wed, 15 Apr

KLM flights from London to Cardiff

Our best KLM deals on London to Cardiff flight tickets
KLM
20 Apr
LCY20:15London City
13h 00m
1 stop
CWL09:15Cardiff Wales
29 Apr
CWL09:45Cardiff Wales
10h 00m
1 stop
LCY19:45London City
£231
KLM
20 Apr
LCY08:25London City
8h 20m
1 stop
CWL16:45Cardiff Wales
29 Apr
CWL09:45Cardiff Wales
7h 35m
1 stop
LCY17:20London City
£241
KLM
20 Apr
LCY20:15London City
13h 00m
1 stop
CWL09:15Cardiff Wales
27 Apr
CWL09:45Cardiff Wales
8h 45m
1 stop
LCY18:30London City
£252

Ryanair flights from London to Cardiff

Our best Ryanair deals on London to Cardiff flight tickets
Ryanair
21 Apr
LTN13:10London Luton
9h 40m
1 stop
CWL22:50Cardiff Wales
28 Apr
CWL23:15Cardiff Wales
10h 00m
1 stop
LTN09:15London Luton
£70
Ryanair
20 Apr
STN06:30London Stansted
15h 15m
1 stop
CWL21:45Cardiff Wales
29 Apr
CWL23:50Cardiff Wales
8h 00m
1 stop
STN07:50London Stansted
£71
Ryanair
5 Apr
STN08:30London Stansted
12h 50m
1 stop
CWL21:20Cardiff Wales
12 Apr
CWL21:45Cardiff Wales
12h 05m
1 stop
STN09:50London Stansted
£73

momondo Fare Finder

 
Customise your flight search to find flights from London to Cardiff 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, momondo users made 279,928 searches. Data last updated 10 March 2026.
Use the filters below to find and compare flights from London to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonCardiff

LTN - CWL

LTNCWL

London Luton

Tue 21/4

13:10-22:50

1 stop9h 40m

Cardiff Wales

Tue 28/4

23:15-09:15

1 stop10h 00m

£70

LondonCardiff

STN - CWL

STNCWL

London Stansted

Mon 20/4

06:30-21:45

1 stop15h 15m

Cardiff Wales

Wed 29/4

23:50-07:50

1 stop8h 00m

£71

LondonCardiff

LTN - CWL

LTNCWL

London Luton

Mon 20/4

14:25-21:45

1 stop7h 20m

Cardiff Wales

Wed 29/4

23:50-15:25

1 stop15h 35m

£71

LondonCardiff

STN - CWL

STNCWL

London Stansted

Sun 5/4

08:30-21:20

1 stop12h 50m

Cardiff Wales

Sun 12/4

21:45-09:50

1 stop12h 05m

£73
Fastest return journey

LondonCardiff

STN - CWL

STNCWL

London Stansted

Mon 20/4

17:35-21:45

1 stop4h 10m

Cardiff Wales

Wed 29/4

23:50-07:50

1 stop8h 00m

£74

LondonCardiff

STN - CWL

STNCWL

London Stansted

Sat 21/3

13:30-19:40

1 stop6h 10m

Cardiff Wales

Mon 23/3

23:30-07:50

1 stop8h 20m

£79

LondonCardiff

LCY - CWL

LCYCWL

London City

Mon 20/4

20:15-09:15

1 stop13h 00m

Cardiff Wales

Wed 29/4

09:45-19:45

1 stop10h 00m

£231

LondonCardiff

LCY - CWL

LCYCWL

London City

Mon 20/4

08:25-16:45

1 stop8h 20m

Cardiff Wales

Wed 29/4

09:45-17:20

1 stop7h 35m

£241

LondonCardiff

LCY - CWL

LCYCWL

London City

Mon 20/4

20:15-09:15

1 stop13h 00m

Cardiff Wales

Mon 27/4

09:45-18:30

1 stop8h 45m

£252

LondonCardiff

LCY - CWL

LCYCWL

London City

Wed 8/4

20:15-09:15

1 stop13h 00m

Cardiff Wales

Wed 15/4

09:45-18:30

1 stop8h 45m

£265

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Cardiff from

How to get the cheapest flight ticket from London to Cardiff

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London and Cardiff?

When to book flights from London to Cardiff

Are you open to changing your travel dates? Check out the ideal times to fly from London to Cardiff according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to Cardiff (LON to CWL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Cardiff

Fastest flight time

4h 00m

Direct flights

None
The fastest flight from London to Cardiff takes 4h 00m
There are no direct flights from London to Cardiff. There are no popular flight routes from London to Cardiff.
Search flight deals

  • Is flying the fastest way to get from London to Cardiff?

    To save time, the fastest way to travel is by train from London to Cardiff on AccesRail. Expect the length of time you’ll spend onboard AccesRail to be about 1h 44m compared to taking a flight from London to Cardiff or a bus from London to Cardiff which have been found to be slower alternatives.

  • Is flying the cheapest way to get from London to Cardiff?

    A bus from London to Cardiff from £14 can save you up to 85% on the cost of your trip compared to booking a flight from London to Cardiff or a train from London to Cardiff.

  • How far is London to Cardiff Wales by plane?

    The distance between London and Cardiff Wales is about 131.3 mi. Typically, this will take 4h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from London to Cardiff Wales Airport?

    Prices for flights from London to Cardiff Wales Airport refresh daily.

  • How many operators does momondo search for flights from London to Cardiff Wales Airport?

  • How old do you have to be to fly from London to Cardiff Wales Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Cardiff Wales Airport.

  • What documentation or ID do you need to fly to Cardiff Wales Airport?

    The travel and health documents required for your trip to Cardiff Wales Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cardiff Wales Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from London to Cardiff?

Best airlines flying from London to Cardiff

Compare and see reviews for airlines that fly from London to Cardiff with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom £259Free CancellationRating
7.8
1,468 reviews
Search KLM flights

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry
Bridgend

Why use momondo?

Why should I use momondo to find a flight deal from London to Cardiff?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cardiff from London.

Can I find flights from London to Cardiff with flexible booking policies on momondo?

Flights from London to Cardiff with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to Cardiff?

momondo helps you find the best flight between London and Cardiff by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Cardiff right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Cardiff, momondo offers a useful price alert feature which will track prices for flights to Cardiff from London and alert you when they change.

An easier way to manage your Cardiff trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Airports servicing Wales

Holyhead Anglesey Airport