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Cheap flights from London Heathrow Airport to Cardiff from £144

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 17/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LHR — CWL
21 Apr — 28 Apr1
1 adult
Sun 21/4
Sun 28/4

Cheap flight deals from Heathrow to Cardiff

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Cardiff (CWL). 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 16 April 2024.

Popular in

April

Cheapest in

March

Average price

£559

Round-trip from

£105
High demand for flights, 32% potential price rise
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Best time to find cheap flights, 48% potential price drop
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Average for round-trip flights in April 2024
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From London Heathrow to Cardiff Wales
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What is the cheapest day to fly round-trip from London Heathrow Airport to Cardiff?

Departing on a Sunday is a good option for securing a great price. You can expect to save up to 20% when planning your travel around this day of the week.

How far in advance should I book a flight from London Heathrow Airport to Cardiff?

Users have found that booking a flight from London Heathrow Airport to Cardiff at least 23 days early can save you up to 75% on average compared to booking a flight this week. If booking 23 days before your flight isn’t an option for you, users have found flights from London Heathrow Airport to Cardiff for as little as £78 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £564 for flights departing within the next 3 days.

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

Due to multiple factors, expect to potentially pay more when booking in November. For low rates, May can be a great choice for travel to Cardiff. Flights to Cardiff from London Heathrow Airport in May are about £280 on average during May, but can be found for as low as £89.

When is the cheapest time to fly from London Heathrow Airport to Cardiff (LHR - CWL)?

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Cardiff in the morning. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the afternoon.

Cheap KLM flights from Heathrow to Cardiff

Explore cheap flight options specifically provided by KLM for the route between Heathrow and Cardiff. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.
Check out some of the cheapest KLM flights we've come across from London to Cardiff. Come back soon if you're not finding the exact deal you're looking for.
Sat 8/606:30LHR - CWL
1 stop10h 15mKLM
Sun 16/617:15CWL - LHR
1 stop3h 40mKLM
Deal found 15/4£205
Wed 15/520:55LHR - CWL
1 stop12h 20mKLM
Wed 22/509:45CWL - LHR
1 stop7h 50mKLM
Deal found 15/4£227
Tue 7/511:45LHR - CWL
1 stop5h 00mKLM
Tue 14/517:15CWL - LHR
1 stop3h 40mKLM
Deal found 15/4£255
Fri 17/520:55LHR - CWL
1 stop12h 20mKLM
Mon 20/509:45CWL - LHR
1 stop7h 50mKLM
Deal found 15/4£260
Tue 30/420:55LHR - CWL
1 stop12h 20mKLM
Tue 7/517:15CWL - LHR
1 stop3h 40mKLM
Deal found 15/4£268
Mon 8/720:55LHR - CWL
1 stop12h 20mKLM
Sat 13/717:15CWL - LHR
1 stop3h 40mKLM
Deal found 15/4£281
Wed 1/520:55LHR - CWL
1 stop12h 20mKLM
Sun 19/517:15CWL - LHR
1 stop3h 40mKLM
Deal found 15/4£300
Mon 13/520:55LHR - CWL
1 stop12h 20mKLM
Mon 20/509:45CWL - LHR
1 stop6h 30mKLM
Deal found 14/4£321
Sun 28/420:55LHR - CWL
1 stop12h 20mKLM
Sun 5/517:15CWL - LHR
1 stop3h 40mKLM
Deal found 15/4£384

Cheap Aer Lingus flights from Heathrow to Cardiff

Explore cheap flight options specifically provided by Aer Lingus for the route between Heathrow and Cardiff. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.
To aid your search, here are some of the cheapest Aer Lingus flights we've found from London to Cardiff. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Wed 15/514:00LHR - CWL
1 stop18h 00mAer Lingus
Wed 22/512:00CWL - LHR
1 stop9h 00mAer Lingus
Deal found 15/4£405
Sat 4/507:40LHR - CWL
3 stops27h 50mAer Lingus
Mon 6/508:30CWL - LHR
3 stops34h 55mAer Lingus
Deal found 15/4£831

Cheap Heathrow to Cardiff flights in April & May 2024

Find cheap flight options from Heathrow to Cardiff specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 886,143 searches. Prices were last updated on 16 April 2024.
These are some of the best deals we've found on flights to Cardiff in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Tue 21/520:55LHR - CWL
1 stop12h 20mKLM
Tue 28/517:15CWL - LHR
1 stop3h 40mKLM
Deal found 14/4£205
Tue 14/520:55LHR - CWL
1 stop12h 20mKLM
Tue 21/517:15CWL - LHR
1 stop3h 40mKLM
Deal found 14/4£215
Wed 22/508:40LHR - CWL
1 stop8h 05mKLM
Wed 29/517:15CWL - LHR
1 stop3h 40mKLM
Deal found 14/4£217
Wed 15/520:55LHR - CWL
1 stop12h 20mKLM
Wed 22/509:45CWL - LHR
1 stop7h 50mKLM
Deal found 15/4£227
Tue 21/520:55LHR - CWL
1 stop12h 20mKLM
Thu 30/509:45CWL - LHR
1 stop6h 30mKLM
Deal found 14/4£230
Wed 22/508:40LHR - CWL
1 stop8h 05mKLM
Thu 30/509:45CWL - LHR
1 stop7h 50mKLM
Deal found 14/4£242
Fri 17/520:55LHR - CWL
1 stop12h 20mKLM
Mon 20/509:45CWL - LHR
1 stop7h 50mKLM
Deal found 15/4£260
Mon 20/506:30LHR - CWL
1 stop10h 15mKLM
Wed 29/517:15CWL - LHR
1 stop3h 40mKLM
Deal found 14/4£262
Tue 30/420:55LHR - CWL
1 stop12h 20mKLM
Tue 7/517:15CWL - LHR
1 stop3h 40mKLM
Deal found 15/4£268

Heathrow to Cardiff 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and Cardiff in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.
These are some of the best deals we've found on flights to Cardiff in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Tue 20/820:55LHR - CWL
1 stop12h 20mKLM
Tue 27/817:15CWL - LHR
1 stop3h 40mKLM
Deal found 14/4£203
Tue 21/520:55LHR - CWL
1 stop12h 20mKLM
Tue 28/517:15CWL - LHR
1 stop3h 40mKLM
Deal found 14/4£205
Tue 14/520:55LHR - CWL
1 stop12h 20mKLM
Tue 21/517:15CWL - LHR
1 stop3h 40mKLM
Deal found 14/4£215
Wed 22/508:40LHR - CWL
1 stop8h 05mKLM
Wed 29/517:15CWL - LHR
1 stop3h 40mKLM
Deal found 14/4£217
Wed 15/520:55LHR - CWL
1 stop12h 20mKLM
Wed 22/509:45CWL - LHR
1 stop7h 50mKLM
Deal found 15/4£227
Mon 26/820:55LHR - CWL
1 stop12h 20mKLM
Fri 30/817:15CWL - LHR
1 stop3h 40mKLM
Deal found 14/4£228
Tue 21/520:55LHR - CWL
1 stop12h 20mKLM
Thu 30/509:45CWL - LHR
1 stop6h 30mKLM
Deal found 14/4£230
Wed 22/508:40LHR - CWL
1 stop8h 05mKLM
Thu 30/509:45CWL - LHR
1 stop7h 50mKLM
Deal found 14/4£242
Fri 17/520:55LHR - CWL
1 stop12h 20mKLM
Mon 20/509:45CWL - LHR
1 stop7h 50mKLM
Deal found 15/4£260

Heathrow to Cardiff flights leaving soon

Find last-minute flight options from Heathrow to Cardiff for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.
Have a look at some of the flights available from London to Cardiff departing last-minute. Users should be sure to double check the price, date, and time of their last-minute flight.
Sun 21/420:55LHR - CWL
1 stop12h 20mKLM
Sun 28/409:45CWL - LHR
1 stop9h 45mKLM
Deal found 15/4£1,070

One-way flights to Cardiff from Heathrow

Search for one-way flight options from Heathrow to Cardiff. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.
Some of the best available deals we've found on one-way flights from London to Cardiff. Users needing a return flight from London to Cardiff should utilize the search form above.
Mon 17/621:40LHR - CWL
2 stops13h 50mMultiple Airlines
Deal found 15/4£144
Tue 23/420:50LHR - CWL
2 stops16h 00mVueling
Deal found 15/4£156
Thu 20/607:30LHR - CWL
1 stop4h 00mMultiple Airlines
Deal found 15/4£165
Mon 17/611:40LHR - CWL
1 stop23h 50mMultiple Airlines
Deal found 15/4£174
Tue 23/407:35LHR - CWL
1 stop3h 55mMultiple Airlines
Deal found 15/4£177
Tue 21/520:55LHR - CWL
1 stop12h 20mKLM
Deal found 15/4£186
Tue 7/517:20LHR - CWL
1 stop18h 10mAer Lingus
Deal found 15/4£205
Thu 20/622:00LHR - CWL
2 stops38h 40mMultiple Airlines
Deal found 15/4£244
Fri 21/621:15LHR - CWL
2 stops38h 15mMultiple Airlines
Deal found 15/4£245

Find flights from Heathrow to Cardiff within your budget

Customise your flight search to find flights from Heathrow 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, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£205 - £405

Route

Depart

Return

Price

London HeathrowCardiff Wales

LHR - CWL

LHRCWL

London Heathrow

Sat 8/6

1 stop10h 15m

Cardiff Wales

Sun 16/6

1 stop3h 40m

£205

London HeathrowCardiff Wales

LHR - CWL

LHRCWL

London Heathrow

Wed 15/5

1 stop12h 20m

Cardiff Wales

Wed 22/5

1 stop7h 50m

£227

London HeathrowCardiff Wales

LHR - CWL

LHRCWL

London Heathrow

Tue 7/5

1 stop5h 00m

Cardiff Wales

Tue 14/5

1 stop3h 40m

£255

London HeathrowCardiff Wales

LHR - CWL

LHRCWL

London Heathrow

Fri 17/5

1 stop12h 20m

Cardiff Wales

Mon 20/5

1 stop7h 50m

£260

London HeathrowCardiff Wales

LHR - CWL

LHRCWL

London Heathrow

Tue 30/4

1 stop12h 20m

Cardiff Wales

Tue 7/5

1 stop3h 40m

£268

London HeathrowCardiff Wales

LHR - CWL

LHRCWL

London Heathrow

Mon 8/7

1 stop12h 20m

Cardiff Wales

Sat 13/7

1 stop3h 40m

£281

London HeathrowCardiff Wales

LHR - CWL

LHRCWL

London Heathrow

Tue 14/5

1 stop3h 55m

Cardiff Wales

Wed 15/5

1 stop9h 00m

£315

London HeathrowCardiff Wales

LHR - CWL

LHRCWL

London Heathrow

Sun 28/4

1 stop21h 00m

Cardiff Wales

Wed 1/5

1 stop5h 25m

£345

London HeathrowCardiff Wales

LHR - CWL

LHRCWL

London Heathrow

Wed 15/5

1 stop18h 00m

Cardiff Wales

Wed 22/5

1 stop9h 00m

£405

Flights are sorted by cheapest first

Deals found on 15/4

When is the cheapest time to fly from London Heathrow Airport to Cardiff?

Use this chart to determine the cheapest time to fly return from Heathrow to Cardiff. Price data was last updated on 14 April 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London Heathrow Airport to Cardiff flight should consider departing on Monday mornings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Cardiff by month

Plan your trip from Heathrow to Cardiff by taking into account the cheapest months to travel. The average price of a one-way flight from Heathrow to Cardiff is currently £188 while a return flight costs £285. Price data was last updated on 14 April 2024.

Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Cardiff (average of £131). Flying from London Heathrow Airport to Cardiff in February is currently the most expensive (average of £199). 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.

January

£122

February

£160

March

£136

April

£112

May

£149

June

£126

July

£127

August

£135

September

£117

October

£105

November

£108

December

£156

Temperature and rainfall in Cardiff by month

Plan your trip to Cardiff by taking into account the average temperature and rainfall totals by month.

CWL

Temperature

4 - 18 °C

Reviews of airlines servicing Cardiff

Get insights into the airlines that provide service to Cardiff. 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 Cardiff. Reviews last updated 16 April 2024.
See what other customers who have flown with KLM and Aer Lingus from London to Cardiff have to say. 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
7.9
Good
1,647 reviews
Check prices

Food

7.3

Crew

8.4

Boarding

7.8

Comfort

7.6

Entertainment

7.3

Overall

7.9

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

KLM
7.9
Good
1,647 reviews
KLM
7.9
Good
1,647 reviews
Check prices

Food

7.3

Crew

8.4

Boarding

7.8

Comfort

7.6

Entertainment

7.3

Overall

7.9

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Air France
7.6
Good
1,837 reviews
KLM
7.9
Good
1,647 reviews
Check prices

Food

7.3

Crew

8.4

Boarding

7.8

Comfort

7.6

Entertainment

7.3

Overall

7.9

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Aer Lingus
7.2
Good
1,357 reviews
KLM
7.9
Good
1,647 reviews
Check prices

Food

7.3

Crew

8.4

Boarding

7.8

Comfort

7.6

Entertainment

7.3

Overall

7.9

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Vueling
7.0
Good
1,522 reviews
KLM
7.9
Good
1,647 reviews
Check prices

Food

7.3

Crew

8.4

Boarding

7.8

Comfort

7.6

Entertainment

7.3

Overall

7.9

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Cardiff. 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 into for flights to Cardiff from London Heathrow?

    Most people fly into Cardiff Wales (CWL) if they book a flight to Cardiff from London Heathrow. On average, Cardiff Wales has 3 inbound flights from London Heathrow per day from 1 airline. Cardiff Wales is conveniently located just 9.1 mi from Cardiff’s city center.

  • Can I find flights from London Heathrow Airport to Cardiff for under £300 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to Cardiff for under £300. The cheapest flight booked recently is on KLM for just £205, but on average you can expect to pay £396.

  • Are there last-minute flights available from London Heathrow Airport to Cardiff for under £1,100?

    There are currently 1+ open flights from London Heathrow Airport to Cardiff within the next 7 days for less than £1,100.

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

    Cheapflights users have booked flights from London Heathrow Airport to Cardiff round-trip from £205. Other airlines that can offer you cheap pricing are Aer Lingus, from £405, and Air France, from £2,763. Users have found that KLM is 46% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from London Heathrow Airport to Cardiff one-way

    One-way options have recently been found by users for as little as £156 on Vueling Other airlines that offer cheap prices include KLM from £186 and Aer Lingus from £205 one-way.

  • What does LHR to CWL mean?

    This is defined as London Heathrow Airport (LHR) and Cardiff Wales Airport (CWL). Codes like Cardiff Wales Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Heathrow to Cardiff that include extra baggage allowance?

    The amount of baggage you can bring depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Heathrow to Cardiff with specific airlines?

    Yes, Cheapflights allows you to browse and filter flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

    Yes. In addition to deals on Heathrow to Cardiff flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Cardiff?

    After entering your origin and destination, apply the non-stop filter on the search result page to see available direct flights.

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

    Yes. Cheapflights offers flight deals from Heathrow to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Heathrow to Cardiff that allow pets onboard?

    Many airlines do offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Heathrow to Cardiff?

    Yes, you can often find last-minute deals on Heathrow to Cardiff flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London Heathrow Airport to Cardiff flight deals updated?

    The London Heathrow Airport to Cardiff flight deals you see on this page were last updated on 15/4.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Cardiff
See prices for flight routes from nearby airports that may be better suited for you.

Gatwick to Cardiff flights
Luton to Cardiff flights
Stansted to Cardiff flights

Top airline flying from Heathrow to Cardiff

Discover the top airline that operate flights from Heathrow to Cardiff. 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 886,143 searches. Data last updated 16 April 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£212Average£335FlexibilityNo cancel feeOn-time75%
Search KLM flights
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Search flights from Heathrow to Cardiff by cabin class

Find flights from Heathrow to Cardiff, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy class

Hourly flight availability from Heathrow to Cardiff

Find hourly flight availability from Heathrow to Cardiff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 April 2024.
1%of flight departuresEarly morningMidnight to 6 am
36%of flight departuresMorning6 am to noon
25%of flight departuresAfternoonNoon to 6 pm
38%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
6 PM

Weekly flight availability from Heathrow to Cardiff

Explore weekly flight availability from Heathrow to Cardiff. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 April 2024.
Monday3daily flights
Tuesday3daily flights
Wednesday3daily flights
Thursday3daily flights
Friday3daily flights
Saturday3daily flights
Sunday3daily flights

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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 Heathrow to Cardiff?

Deals for Heathrow to Cardiff 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 Heathrow to Cardiff?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Cardiff by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Cardiff from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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