What’s the cheapest stopover airport for flights from London Heathrow Airport to Cardiff?

Amsterdam (AMS) is the most affordable one-stop option, with an average return flight price of £394.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Cardiff?

Flights via Belfast (BHD) offer the fastest connection on this route, with an average stopover time of 2h 17m.

What’s the top stopover airport for flights from London Heathrow Airport to Cardiff?

Amsterdam (AMS) – chosen by Cheapflights users on 84% of one-stop itineraries from London Heathrow Airport to Cardiff on Cheapflights.

What’s the fastest stopover option from London Heathrow Airport to Cardiff?

Flights via Belfast (BHD) have the shortest average one-way travel time for one-stop routes: 3h 49m.

What is the cheapest airline to fly from London Heathrow Airport to Cardiff round-trip?

Cheapflights users have booked flights from London Heathrow Airport to Cardiff round-trip from £194. Users have found that KLM is 46% cheaper than the other options available to this destination.

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

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

In terms of precipitation, rainfall in Cardiff ranges from 50.0 - 90.0 inches per month. January is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Cardiff when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Cardiff, 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 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

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

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 32% when planning your travel around this day of the week.

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 December. For low rates, January can be a great choice for travel to Cardiff. Flights to Cardiff from London Heathrow Airport in January are about £290 on average during January, but can be found for as low as £87.

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 0 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 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 find direct flights from Heathrow to Cardiff.

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.

£75+ Flights from London Heathrow Airport to Cardiff

Cheap flight deals from Heathrow to Cardiff

Round-trip from	£154
One-way from	£75
Popular in	July
Cheapest in	December
Average price	£299

10/10-17/10
2 total stops
17h 20m total
London to Cardiff

Search Deals

15/10
1 total stop
10h 15m total
London to Cardiff

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£35 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Heathrow to Cardiff

Cheapest flights from Heathrow to Cardiff
Explore the most affordable flight options available from Heathrow to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Fri 10/1021:10LHR - CWL

1 stop10h 20mMultiple Airlines

Fri 17/1012:25CWL - LHR

1 stop7h 00mMultiple Airlines

Deal found 11/9£154

Wed 1/1021:10LHR - CWL

1 stop10h 15mMultiple Airlines

Sat 4/1009:00CWL - LHR

1 stop11h 20mMultiple Airlines

Deal found 10/9£160

Wed 15/1021:10LHR - CWL

1 stop10h 15mMultiple Airlines

Tue 21/1016:20CWL - LHR

1 stop4h 00mMultiple Airlines

Deal found 11/9£166

Tue 7/1007:40LHR - CWL

1 stop8h 15mMultiple Airlines

Sat 11/1009:00CWL - LHR

1 stop11h 20mMultiple Airlines

Deal found 11/9£167

Sun 26/1008:50LHR - CWL

1 stop12h 05mMultiple Airlines

Sun 2/1121:20CWL - LHR

1 stop11h 45mMultiple Airlines

Deal found 11/9£203

Fri 17/1016:50LHR - CWL

1 stop14h 40mMultiple Airlines

Sun 19/1011:00CWL - LHR

1 stop3h 55mMultiple Airlines

Deal found 11/9£206

Thu 9/1020:55LHR - CWL

1 stop12h 20mKLM

Wed 15/1009:50CWL - LHR

1 stop4h 00mKLM

Deal found 11/9£224

Mon 15/921:10LHR - CWL

1 stop18h 45mMultiple Airlines

Mon 22/913:10CWL - LHR

1 stop6h 15mMultiple Airlines

Deal found 11/9£242

Best flights from Heathrow to Cardiff
Discover carefully curated flight deals from Heathrow to Cardiff that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2025.

Fri 10/1021:10LHR - CWL

1 stop10h 20mMultiple Airlines

Fri 17/1012:25CWL - LHR

1 stop7h 00mMultiple Airlines

Deal found 11/9£154

Thu 9/1020:55LHR - CWL

1 stop12h 20mKLM

Wed 15/1009:50CWL - LHR

1 stop4h 00mKLM

Deal found 11/9£224

Wed 1/1021:10LHR - CWL

1 stop10h 15mMultiple Airlines

Sat 4/1009:00CWL - LHR

1 stop11h 20mMultiple Airlines

Deal found 10/9£160

Wed 15/1021:10LHR - CWL

1 stop10h 15mMultiple Airlines

Tue 21/1016:20CWL - LHR

1 stop4h 00mMultiple Airlines

Deal found 11/9£166

Tue 7/1007:40LHR - CWL

1 stop8h 15mMultiple Airlines

Sat 11/1009:00CWL - LHR

1 stop11h 20mMultiple Airlines

Deal found 11/9£167

Tue 18/1108:40LHR - CWL

1 stop8h 15mKLM

Fri 21/1117:15CWL - LHR

1 stop3h 35mKLM

Deal found 10/9£256

Sun 26/1008:50LHR - CWL

1 stop12h 05mMultiple Airlines

Sun 2/1121:20CWL - LHR

1 stop10h 45mMultiple Airlines

Deal found 10/9£204

Thu 9/1020:55LHR - CWL

1 stop12h 20mKLM

Thu 16/1017:15CWL - LHR

1 stop3h 40mKLM

Deal found 9/9£256

Fri 17/1016:50LHR - CWL

1 stop14h 40mMultiple Airlines

Sun 19/1011:00CWL - LHR

1 stop3h 55mMultiple Airlines

Deal found 11/9£206

Sat 11/1007:30LHR - CWL

1 stop4h 00mMultiple Airlines

Sat 18/1012:00CWL - LHR

1 stop8h 20mMultiple Airlines

Deal found 11/9£257

Last-minute flights from Heathrow to Cardiff
Discover last-minute flight deals from Heathrow to Cardiff. Data last updated 12 September 2025 and is based on user searches.

Mon 15/921:10LHR - CWL

1 stop18h 45mMultiple Airlines

Mon 22/913:10CWL - LHR

1 stop6h 15mMultiple Airlines

Deal found 11/9£242

Wed 1/1021:10LHR - CWL

1 stop10h 15mMultiple Airlines

Sat 4/1009:00CWL - LHR

1 stop11h 20mMultiple Airlines

Deal found 10/9£160

Tue 7/1007:40LHR - CWL

1 stop8h 15mMultiple Airlines

Sat 11/1009:00CWL - LHR

1 stop11h 20mMultiple Airlines

Deal found 11/9£167

Thu 9/1020:55LHR - CWL

1 stop12h 20mKLM

Wed 15/1009:50CWL - LHR

1 stop4h 00mKLM

Deal found 11/9£224

Fri 10/1021:10LHR - CWL

1 stop10h 20mMultiple Airlines

Fri 17/1012:25CWL - LHR

1 stop7h 00mMultiple Airlines

Deal found 11/9£154

Wed 15/1021:10LHR - CWL

1 stop10h 15mMultiple Airlines

Tue 21/1016:20CWL - LHR

1 stop4h 00mMultiple Airlines

Deal found 11/9£166

Fri 17/1016:50LHR - CWL

1 stop14h 40mMultiple Airlines

Sun 19/1011:00CWL - LHR

1 stop3h 55mMultiple Airlines

Deal found 11/9£206

Sun 26/1008:50LHR - CWL

1 stop12h 05mMultiple Airlines

Sun 2/1121:20CWL - LHR

1 stop11h 45mMultiple Airlines

Deal found 11/9£203

One-way flights from Heathrow to Cardiff
Search for one-way flight options from Heathrow to Cardiff. Find affordable one-way fares based on user searches. Data last updated 12 September 2025.

Wed 15/1021:10LHR - CWL

1 stop10h 15mMultiple Airlines

Deal found 10/9£75

Tue 28/1007:50LHR - CWL

1 stop13h 30mMultiple Airlines

Deal found 10/9£87

Sat 13/1212:10LHR - CWL

1 stop7h 30mMultiple Airlines

Deal found 11/9£102

Wed 24/915:50LHR - CWL

1 stop15h 35mMultiple Airlines

Deal found 10/9£114

Thu 8/115:05LHR - CWL

1 stop17h 00mBritish Airways

Deal found 11/9£209

Thu 8/109:00LHR - CWL

2 stops7h 55mMultiple Airlines

Deal found 11/9£273

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Fri 10/10

21:10-07:30

1 stop10h 20m

Cardiff Wales

Fri 17/10

12:25-19:25

1 stop7h 00m

£154

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Wed 1/10

21:10-07:25

1 stop10h 15m

Cardiff Wales

Sat 4/10

09:00-20:20

1 stop11h 20m

£160

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Wed 15/10

21:10-07:25

1 stop10h 15m

Cardiff Wales

Tue 21/10

16:20-20:20

1 stop4h 00m

£166

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Tue 7/10

07:40-15:55

1 stop8h 15m

Cardiff Wales

Sat 11/10

09:00-20:20

1 stop11h 20m

£167

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Sun 26/10

08:50-20:55

1 stop12h 05m

Cardiff Wales

Sun 2/11

21:20-08:05

1 stop10h 45m

£204

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Fri 17/10

16:50-07:30

1 stop14h 40m

Cardiff Wales

Sun 19/10

11:00-14:55

1 stop3h 55m

£206

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Thu 9/10

20:55-09:15

1 stop12h 20m

Cardiff Wales

Wed 15/10

09:50-13:50

1 stop4h 00m

£224

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Tue 18/11

08:40-16:55

1 stop8h 15m

Cardiff Wales

Fri 21/11

17:15-20:50

1 stop3h 35m

£256

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Thu 9/10

20:55-09:15

1 stop12h 20m

Cardiff Wales

Thu 16/10

17:15-20:55

1 stop3h 40m

£256

LondonCardiff

LHR - CWL

LHRCWL

London Heathrow

Sat 11/10

07:30-11:30

1 stop4h 00m

Cardiff Wales

Sat 18/10

12:00-20:20

1 stop8h 20m

£257

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 16 results

Best time to book a flight from Heathrow to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Heathrow 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 London Heathrow Airport to Cardiff

Prices

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

Currently, July is the cheapest month in which you can book a flight from London Heathrow Airport to Cardiff (average of £169). Flying from London Heathrow Airport to Cardiff in December is currently the most expensive (average of £263). 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 LHR to CWL?

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Cardiff in the afternoon. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Cardiff

Read through reviews of airlines operating flights from London Heathrow Airport to Cardiff, such as KLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,385 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

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 0 inbound flights from London Heathrow per day from 1 airline. Cardiff Wales is conveniently located just 9.1 mi from Cardiff’s city center.
What is the cheapest airline to fly from London Heathrow Airport to Cardiff round-trip?
Cheapflights users have booked flights from London Heathrow Airport to Cardiff round-trip from £194. Users have found that KLM is 46% cheaper than the other options available to this destination.
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 find direct flights from Heathrow to Cardiff.
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.
What is the cheapest month to book a flight from London Heathrow Airport to Cardiff?
Currently, July is the cheapest month in which you can book a flight from London Heathrow Airport to Cardiff (average of £169). Flying from London Heathrow Airport to Cardiff in December is currently the most expensive (average of £263). 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

Barry

Bridgend

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Alternative routes for Heathrow to Cardiff

Heathrow to Manchester flights

Gatwick to Manchester flights

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London City to Bristol flights

Stansted to Bristol flights

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Luton to Bristol flights

Southend to Cardiff flights

Southend to Bristol flights

Other flights to Cardiff

Top airline flying from Heathrow to Cardiff

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest£194	Average£344	FlexibilityNo cancel fee	On-time75%	Search KLM flights

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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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Cheap flights from London Heathrow Airport to Cardiff from £75

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Cardiff

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Cardiff

Cheapest flights from Heathrow to CardiffExplore the most affordable flight options available from Heathrow to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Explore the most affordable flight options available from Heathrow to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Heathrow to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Heathrow with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Cardiff

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

What is the cheapest time of day to fly from LHR to CWL?

What’s the top stopover airport for flights from London Heathrow Airport to Cardiff?

What’s the fastest stopover option from London Heathrow Airport to Cardiff?

What’s the fastest stopover option from London Heathrow Airport to Cardiff?

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Cardiff?

Reviews of airlines servicing Cardiff

Read through reviews of airlines operating flights from London Heathrow Airport to Cardiff, such as KLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

What is the cheapest airline to fly from London Heathrow Airport to Cardiff round-trip?

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

How can I find direct flights from Heathrow to Cardiff?

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

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

Travelling to a place near Cardiff?

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 Heathrow to Cardiff

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

Top airline flying from Heathrow to Cardiff

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?

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

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

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

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Cheapest flights from Heathrow to Cardiff
Explore the most affordable flight options available from Heathrow to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.