Question 1

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

Accepted Answer

Cheapflights users have booked flights from London Heathrow Airport to Cardiff round-trip from £227. Users have found that KLM is 37% cheaper than the other options available to this destination.

Question 2

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

Accepted Answer

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.

Question 3

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

Accepted Answer

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.

Question 4

E

Accepted Answer

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.

Question 5

E

Accepted Answer

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).

Question 6

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

Accepted Answer

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.

Question 7

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

Accepted Answer

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 £280 on average during January, but can be found for as low as £87.

Question 8

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

Accepted Answer

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.

Question 9

What airport do you fly into for flights to Cardiff from London Heathrow?

Accepted Answer

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.

Question 10

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

Accepted Answer

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

Question 11

How can I find direct flights from Heathrow to Cardiff?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Cardiff.

Question 12

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

Accepted Answer

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.

Question 13

How does Cheapflights help users find flights from Heathrow to Cardiff?

Accepted Answer

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.

Question 14

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

Accepted Answer

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.

Question 15

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

Accepted Answer

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.

Question 16

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

Accepted Answer

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!

Round-trip from	£189
One-way from	£113
Popular in	July
Cheapest in	December
Average price	£838

Cheap flights from London Heathrow Airport to Cardiff from £113

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Cardiff

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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 11 July 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 11 July 2025.

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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

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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?

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 11 July 2025.

How much does it cost for a return flight 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 and British Airways. 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 London Heathrow Airport?

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Alternative routes for Heathrow to Cardiff

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Top airline flying from Heathrow to Cardiff

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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 11 July 2025.