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 is the cheapest day to fly from Cardiff to London?

Travellers seeking maximum savings on their Cardiff to London flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 Luton or Cardiff Wales - London City.

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.

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

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to London. Check prices with Cheapflights to find a great deal for your trip.

What is the cheapest month to fly from Cardiff to London?

May is one of the best times of the year to fly to London from Cardiff. Prices for May average £314 per person but you can even find prices for as low as £106. The most expensive prices can be found in the month of June. Opting for a May flight can save you 85% on your journey compared to booking in June

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.

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.

£56+ Flights from Cardiff to London

Cheap flight deals from Cardiff to London

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
9/8-13/8
2 total stops
19h 10m total
Cardiff to London

Search Deals

Ryanair
29/9
1 total stop
25h 10m total
Cardiff to London

Search Deals

High demand for flights, 6% potential price rise

Search Deals

Cheapest flight prices on average. 8% potential price decrease (£19 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Price to beat on a round-trip flight from Cardiff Wales to London (LON).

Search Deals

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

Best flights from Cardiff to London
Discover carefully curated flight deals from Cardiff to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 July 2025.

Sat 9/809:00CWL - STN

1 stop7h 35mRyanair

Wed 13/819:50STN - CWL

1 stop11h 35mRyanair

Deal found 16/7£107

Thu 4/907:55CWL - LGW

1 stop12h 15mMultiple Airlines

Wed 10/905:20LGW - CWL

2 stops26h 05mMultiple Airlines

Deal found 18/7£148

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

Sat 4/1009:45CWL - LHR

1 stop11h 10mKLM

Sat 11/1008:40LHR - CWL

1 stop8h 25mKLM

Deal found 17/7£267

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 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

Thu 14/807:55CWL - LHR

1 stop7h 00mMultiple Airlines

Wed 20/819:35LHR - CWL

1 stop11h 50mMultiple Airlines

Deal found 16/7£198

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

Last-minute flights from Cardiff to London
Discover last-minute flight deals from Cardiff to London. Data last updated 18 July 2025 and is based on user searches.

Mon 21/711:35CWL - SEN

1 stop8h 05mMultiple Airlines

Tue 22/707:00SEN - CWL

1 stop12h 40mMultiple Airlines

Deal found 18/7£377

Wed 6/817:15CWL - LHR

1 stop3h 40mKLM

Fri 22/806:30LHR - CWL

1 stop10h 15mKLM

Deal found 16/7£424

Thu 7/812:00CWL - LCY

1 stop20h 15mAer Lingus

Fri 8/819:05LCY - CWL

1 stop16h 25mAer Lingus

Deal found 15/7£523

Sat 9/809:00CWL - STN

1 stop7h 35mRyanair

Wed 13/819:50STN - CWL

1 stop11h 35mRyanair

Deal found 16/7£107

Tue 12/816:20CWL - STN

2 stops16h 00mMultiple Airlines

Tue 19/810:45STN - CWL

1 stop5h 10mMultiple Airlines

Deal found 17/7£152

Tue 12/816:20CWL - LGW

2 stops16h 00mMultiple Airlines

Tue 19/809:40LGW - CWL

1 stop6h 15mMultiple Airlines

Deal found 17/7£154

Tue 12/809:50CWL - LCY

1 stop7h 30mKLM

Tue 19/810:00LCY - CWL

1 stop6h 45mKLM

Deal found 17/7£272

Thu 14/807:55CWL - LHR

1 stop7h 00mMultiple Airlines

Wed 20/819:35LHR - CWL

1 stop11h 50mMultiple Airlines

Deal found 16/7£198

Fri 15/812:25CWL - LCY

1 stop9h 15mMultiple Airlines

Fri 22/818:05LCY - CWL

1 stop13h 25mMultiple Airlines

Deal found 18/7£421

Tue 26/816:20CWL - LTN

2 stops16h 15mMultiple Airlines

Fri 29/821:05LTN - CWL

1 stop10h 25mMultiple Airlines

Deal found 17/7£152

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

One-way flights from Cardiff to London
Search for one-way flight options from Cardiff to London. Find affordable one-way fares based on user searches. Data last updated 18 July 2025.

Mon 29/913:10CWL - STN

1 stop25h 10mRyanair

Deal found 17/7£56

Tue 16/916:20CWL - LGW

1 stop17h 00mRyanair

Deal found 17/7£63

Tue 16/916:20CWL - LTN

1 stop5h 05mRyanair

Deal found 17/7£68

Tue 16/917:05CWL - LGW

2 stops39h 30mMultiple Airlines

Deal found 17/7£83

Tue 16/917:05CWL - STN

2 stops39h 50mMultiple Airlines

Deal found 17/7£84

Tue 16/917:05CWL - LTN

2 stops39h 40mMultiple Airlines

Deal found 17/7£86

Tue 16/917:05CWL - SEN

2 stops30h 00mMultiple Airlines

Deal found 17/7£87

Tue 16/916:20CWL - LHR

1 stop20h 10mMultiple Airlines

Deal found 17/7£90

Tue 16/916:20CWL - LCY

1 stop4h 30mMultiple Airlines

Deal found 17/7£104

Sat 30/817:35CWL - LHR

1 stop14h 05mKLM

Deal found 16/7£205

Sat 30/817:35CWL - LCY

1 stop23h 45mKLM

Deal found 16/7£262

Thu 28/812:00CWL - LCY

1 stop4h 00mBritish Airways

Deal found 15/7£278

Cheapflights Fare Finder

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

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

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?

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

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.

KLM

7.8

Good

1,374 reviews

Check prices

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.

KLM

7.8

Good

1,374 reviews

KLM

7.8

Good

1,374 reviews

Check prices

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.

Aer Lingus

7.1

Good

1,170 reviews

KLM

7.8

Good

1,374 reviews

Check prices

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.

Ryanair

6.9

Okay

5,148 reviews

KLM

7.8

Good

1,374 reviews

Check prices

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.

British Airways

6.6

Okay

7,151 reviews

KLM

7.8

Good

1,374 reviews

Check prices

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

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?
The most popular route from Cardiff to London is Cardiff Wales - London Heathrow. You may also consider Cardiff Wales - London Luton or Cardiff Wales - London City.
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

Milton Keynes

Croydon

Hounslow

Deal

Gatwick

Slough

Luton

Wembley

Crawley

Eastbourne

Ilford

Hayes

Ipswich

Southend-on-Sea

Folkestone

Watford

Winchester

Maidstone

Guildford

Chichester

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Cardiff to London

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest£219	Average£393	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

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.

Cheap flight deals from Cardiff to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Find flight deals from Cardiff to London

Cheapest flights from Cardiff to LondonExplore 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.

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.

Cheapflights Fare Finder

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

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.

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?

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.

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.

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?

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

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

What are the most popular routes from Cardiff to London?

What are the cheapest flights from Cardiff to London?

Can I find deals for flights from Cardiff to London that include hotel bookings?

How can I find direct flights from Cardiff to London?

Can I find deals for business class flights from Cardiff to London?

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

Travelling to a place near London?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Cardiff to London

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Cardiff to London

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?

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

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

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

100% Free

Book with Flexibility

Travel Smart

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.