Question 1

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

Accepted Answer

According to our current data, KLM (£233), and British Airways (£425) offers the cheapest pricing from Cardiff to London Heathrow Airport. Users have found that KLM is 33% cheaper than the other options available to this destination.

Question 2

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Cardiff to London Heathrow Airport (average of £112). Flying from Cardiff to London Heathrow Airport 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.

Question 3

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

Accepted Answer

Travellers seeking maximum savings on their Cardiff to London Heathrow Airport flight should consider departing on Wednesday afternoons 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.

Question 4

E

Accepted Answer

In terms of precipitation, rainfall in London Heathrow Airport 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 Heathrow Airport when rainfall is around 40.0 mm.

Question 5

E

Accepted Answer

If weather is an important factor for your trip to London Heathrow Airport, 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).

Question 6

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

Accepted Answer

Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 137% on the overall cost on flights from Cardiff to London Heathrow Airport.

Question 7

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

Accepted Answer

Flights from Cardiff to London Heathrow Airport lean towards being more expensive in June. Prices are generally better when you fly from Cardiff to London Heathrow Airport in May, with the cheapest ticket starting at £104.

Question 8

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

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from Cardiff to London Heathrow Airport at midday. If you’re flexible enough to do this you can expect to save up to 5% on your trip compared to booking a flight in the morning.

Question 9

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

Accepted Answer

Most people fly from Cardiff Wales (CWL) if they book a flight from Cardiff to London Heathrow. On average, Cardiff Wales has 0 outbound flights to 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 Cardiff to Heathrow that include hotel bookings?

Accepted Answer

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

Question 11

How can I find direct flights from Cardiff to Heathrow?

Accepted Answer

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

Question 12

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

Accepted Answer

Yes. Cheapflights offers flight deals from Cardiff to Heathrow 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 Cardiff to Heathrow?

Accepted Answer

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Cardiff today with Cheapflights!

Question 14

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

Accepted Answer

Cheapflights helps you find that perfect flight to Heathrow from Cardiff by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Question 15

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

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from Cardiff to Heathrow flexibly with Cheapflights today.

Question 16

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

Accepted Answer

Yes, Cheapflights offers price alerts on Cardiff to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

Round-trip from	£185
One-way from	£130
Popular in	August
Cheapest in	September
Average price	£356

Cheap flights from Cardiff to London Heathrow Airport from £130

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 24/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Cardiff to Heathrow

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Cheapest flights from Cardiff to HeathrowExplore the most affordable flight options available from Cardiff to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2025.

Explore the most affordable flight options available from Cardiff to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2025.

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Best time to book a flight from Cardiff to Heathrow

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

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

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

Find hourly flight availability from Cardiff to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 July 2025.

How much does it cost for a return flight from Cardiff to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with KLM and British Airways from Cardiff to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines 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 Heathrow. 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 Heathrow?

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

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

How can I find direct flights from Cardiff to Heathrow?

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

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

Travelling to a place near Cardiff?

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Alternative routes for Cardiff to Heathrow

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Top airline flying from Cardiff to Heathrow

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

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

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

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

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Cheapest flights from Cardiff to Heathrow
Explore the most affordable flight options available from Cardiff to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2025.