Cheap Flights from London Heathrow to Cardiff from $520

Q: How much are return flights from London Heathrow to Cardiff?

The best price we found for a return flight from London Heathrow to Cardiff is $520. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Q: Which airlines fly direct from London Heathrow to Cardiff?

Currently, there are no airlines that fly direct from London Heathrow to Cardiff. But we found flights with one or more stops from $520.

Q: How many flights are there a week from London Heathrow to Cardiff?

As of April 2025, there are no flights flying from London Heathrow to Cardiff.

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

The cheapest month to fly from London Heathrow to Cardiff is usually April 2025.

Q: Which upcoming date is cheapest to fly from London Heathrow Airport to Cardiff Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Cardiff Airport on Friday, 30 May 2025 .

Q: Can I get a direct flight from London Heathrow Airport to Cardiff Airport?

No airlines currently offer direct flights between London Heathrow Airport and Cardiff Airport. Most routes have one or more stops.

Q: How can I find the best flight deal to Cardiff?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Cardiff but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

Q: When is the best time to book flights to Cardiff?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Cardiff is around 40 days in advance, so don’t leave your flight to the last minute.

Q: Which is the cheapest airline to fly from London Heathrow Airport to Cardiff with?

Currently, Aer Lingus offers the cheapest flight tickets to Cardiff.

Compare London Heathrow to Cardiff flight deals

Find the cheapest month or even day of the year to fly to Cardiff

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Flight deals from London Heathrow to Cardiff

Looking for a cheap last-minute deal or the best return flight from London Heathrow to Cardiff? Find the lowest prices on one-way and return tickets right here.

Cardiff.$520 per passenger.Departing Fri, 30 May, returning Fri, 6 Jun.Return flight with Aer Lingus and Ryanair.Outbound indirect flight with Aer Lingus, departs from London Heathrow on Fri, 30 May, arriving in Cardiff.Inbound indirect flight with Ryanair, departs from Cardiff on Fri, 6 Jun, arriving in London Heathrow.Price includes taxes and charges.From $520, select.

Cardiff.$682 per passenger.Departing Sun, 11 May, returning Mon, 19 May.Return flight with KLM.Outbound indirect flight with KLM, departs from London Heathrow on Sun, 11 May, arriving in Cardiff.Inbound indirect flight with KLM, departs from Cardiff on Mon, 19 May, arriving in London Heathrow.Price includes taxes and charges.From $682, select.

Cardiff.$762 per passenger.Departing Mon, 2 Jun, returning Mon, 9 Jun.Return flight with KLM.Outbound indirect flight with KLM, departs from London Heathrow on Mon, 2 Jun, arriving in Cardiff.Inbound indirect flight with KLM, departs from Cardiff on Mon, 9 Jun, arriving in London Heathrow.Price includes taxes and charges.From $762, select.

Cardiff.$800 per passenger.Departing Wed, 9 Jul, returning Thu, 10 Jul.Return flight with KLM.Outbound indirect flight with KLM, departs from London Heathrow on Wed, 9 Jul, arriving in Cardiff.Inbound indirect flight with KLM, departs from Cardiff on Thu, 10 Jul, arriving in London Heathrow.Price includes taxes and charges.From $800, select.

Cardiff.$1,014 per passenger.Departing Fri, 25 Apr, returning Thu, 1 May.Return flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Fri, 25 Apr, arriving in Cardiff.Inbound indirect flight with British Airways, departs from Cardiff on Thu, 1 May, arriving in London Heathrow.Price includes taxes and charges.From $1,014, select.

Cardiff.$1,031 per passenger.Departing Sun, 20 Apr, returning Sat, 26 Apr.Return flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Sun, 20 Apr, arriving in Cardiff.Inbound indirect flight with British Airways, departs from Cardiff on Sat, 26 Apr, arriving in London Heathrow.Price includes taxes and charges.From $1,031, select.

Find the cheapest month to fly from London Heathrow to Cardiff

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Cardiff flights are currently cheapest in May.

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London Heathrow to Cardiff: Alternative routes

Compare routes from London Heathrow to Cardiff below. You may find an airport to fly into that's cheaper, faster, or easier than Cardiff.

London to Cardiff: Flight information

The things to know before you go.

Cheapest flight found	$520
Cheapest month to fly	May

Finding cheap flights from London Heathrow to Cardiff: Frequently asked questions

How much are return flights from London Heathrow to Cardiff?

Which airlines fly direct from London Heathrow to Cardiff?

How many flights are there a week from London Heathrow to Cardiff?

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

Which upcoming date is cheapest to fly from London Heathrow Airport to Cardiff Airport on?

Can I get a direct flight from London Heathrow Airport to Cardiff Airport?

How can I find the best flight deal to Cardiff?

When is the best time to book flights to Cardiff?

Which is the cheapest airline to fly from London Heathrow Airport to Cardiff with?

Flying from London Heathrow Airport (LHR) to Cardiff Airport (CWL): what you need to know

London and Cardiff are in the same timezone, UTC+0.
Leave plenty of time to catch your LHR to CWL flight. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.
Travelling during a peak month like July? Public holidays and other high seasons can mean longer queues at check-in and security. Be extra cautious and get there up to four hours ahead of international flights and two hours before domestic departures.
Think about adding a stopover when booking your ticket from London Heathrow Airport to Cardiff Airport. Just uncheck 'Direct flights only' to break up your trip, or enjoy a detour to a new and interesting place. Here's where you can stop between LHR and CWL:
- Dublin Airport
- Amsterdam Airport Schiphol
- George Best Belfast City Airport

How to find the cheapest flights from London Heathrow Airport (LHR) to Cardiff Airport (CWL)

At the moment, $265 is the lowest price we've seen for a one-way London Heathrow Airport to Cardiff Airport flight. The best price for a return ticket is $520. Bear in mind that fares could change due to demand when booking.
It's often best to book as early as possible if you want to find cheap tickets from LHR to CWL. That's because airlines adjust prices based on demand, which tends to increase closer to the date of departure.
If you're willing to be flexible with your trip dates, try using the 'Whole month' search function. It'll give you the cheapest price in each month when searching for a flight from London Heathrow Airport to Cardiff Airport.
Save time looking for cheap flights from LHR to CWL by creating a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.
Tailor your flights using filters. Choose your ideal departure and arrival times, total journey duration and airlines. You can also sort the results by 'Cheapest,' 'Best' or 'Fastest' flights from London Heathrow Airport to Cardiff Airport.

Handy information about London Heathrow Airport (LHR)

68.18% of flights that depart London Heathrow Airport arrive at their destination on time.
London Heathrow Airport is about 31 kilometres from central London. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 55 minutes or so to arrive, depending on the traffic.
You can expect a journey time of roughly 1 hour when using public transport.
Get your holiday off to a stress-free start by staying near LHR. Whether you have an early flight from London Heathrow Airport to Cardiff Airport or want to avoid feeling rushed, these stays have you covered:

Arriving at Cardiff Airport (CWL)

Consider staying in a hotel near CWL if you're catching a late London Heathrow Airport to Cardiff Airport flight. Select one of these options and make your arrival easier:
Follow your own route with a Cardiff Airport rental car. Pick up a set of wheels from Europcar, Keddy By Europcar or Enterprise and find adventure across Cardiff and beyond.
Reserving your ride from Cardiff Airport around four weeks ahead increases your chances of getting a good deal.

Getting from Cardiff Airport (CWL) to central Cardiff

From Cardiff Airport, Cardiff is approximately 27 kilometres away. It takes around 30 minutes to reach the centre by car.
When travelling by public transport, expect a journey time of about 1 hour 5 minutes.

When to fly to Cardiff Airport (CWL)

It's time to work out your travel dates for your flight from London Heathrow Airport to Cardiff Airport. June is the most popular month to head to Cardiff. If you're after a more laid-back vibe, go in April.
Book your flight from London Heathrow Airport to Cardiff Airport for July if you want to visit Cardiff during its warmest month. Expect temperatures of between 11ºC and 22ºC.
January has average temperatures of between 0ºC and 9ºC. Look for cheap tickets from LHR to CWL sometime then if you like travelling in cooler conditions.

Explore more of United Kingdom

You've seen Cardiff, now it's time to discover other corners of United Kingdom. Travel around 209 kilometres east to London to tick off its top sights. From Big Ben to The British Museum and Buckingham Palace, there's plenty to keep you busy.
Around 145 kilometres north-east of Cardiff, Birmingham is another favourite stop in United Kingdom. Get a taste of what this destination has to offer at Cadbury World, The Library of Birmingham and National Sea Life Centre.