Cheap Flights from London to Cardiff

Compare London 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 to Cardiff Airport

Looking for a cheap last-minute deal or the best return flight from London to Cardiff Airport? If you want to travel next month, return fares start from R 1,595. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from London to Cardiff

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

London to Cardiff: Alternative routes

Compare routes from London 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 foundR 748
Cheapest month to flyMay

Finding cheap flights from London to Cardiff: Frequently asked questions

The best price we found for a return flight from London to Cardiff is R 1,519. 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.
Currently, there are no airlines that fly direct from London to Cardiff. But we found flights with one stop from R 1,519.
As of March 2026, there are no flights flying from London to Cardiff.
The cheapest month to fly from London to Cardiff is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Cardiff Airport on Tuesday, 12 May 2026.
No airlines currently offer direct flights between London and Cardiff Airport. Most routes have one or more stops.
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.
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.
The cheapest airline that flies to Cardiff is Ryanair .

Flying from London to Cardiff Airport (CWL): What you need to know

  • Cardiff's timezone is UTC+0, which is the same as London. Cardiff Airport is located in Cardiff.

  • Leave enough time to make your flight from London to CWL. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.

  • Popular months like July or other busy periods mean longer waiting times and potential delays. Stay on schedule by arriving at the airport even earlier. Aim for at least four hours ahead of an international flight and two hours before domestic departures.

Airports in London

London Heathrow Airport (LHR)

London Gatwick Airport (LGW)

  • You can reach LGW from the centre of London in approximately 1 hour 5 minutes by car, depending on traffic. The ride by public transport takes roughly 1 hour 20 minutes to cover the 48 kilometres or so.

  • Flying off with the first light? Think about checking in to one of these hotels near London Gatwick Airport the day before your London to CWL flight:

  • Flights from London Gatwick Airport have a strong track record for punctuality, with 82% of them touching down within the expected time frame.

London Stansted Airport (STN)

  • From central London, STN is around 56 kilometres away. It takes roughly 1 hour 5 minutes to reach the airport by car and 45 minutes or so if you use public transport.

  • Take the uncertainty out of departure day — stay close to London Stansted Airport and know you'll make it to the terminal with time to spare. Get settled at one of these hotels the day before if you have an early London to Cardiff Airport flight:

  • With 80% of its departing flights arriving as scheduled, STN is a reliable starting point for your trip.

About Cardiff Airport (CWL)

  • The last thing you want is a lengthy journey to your hotel if you're arriving on a late flight from London to Cardiff Airport. Make yourself comfy at one of these accommodation options near CWL instead:

  • Booking your vehicle around four weeks in advance of your London to Cardiff Airport flight can help you get the lowest rate.

Getting from Cardiff Airport (CWL) to central Cardiff

  • Central Cardiff is around 19 kilometres from Cardiff Airport and takes about 25 minutes to reach by car. See what your options are for getting into town, whether that's with a car hire, taxi or ride-share.

  • If you're travelling by public transport, expect a journey time of about 40 minutes.

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

  • The lowest price we've found for a one-way ticket from London to Cardiff Airport is R 748. For a return flight on this route, the best price is R 1,519. Depending on how early you book and the availability, these fares may change.

  • Booking ahead of time is often the key to scoring a cheap flight from London to CWL. Fares tend to rise as demand increases, so the closer you get to departure, the more expensive your ticket may be.

  • The 'Whole month' search tool will show you the cheapest London to Cardiff Airport tickets across the month. It's a great way to find a bargain if your travel plans aren't set in stone.

  • Spend less time searching for cheap plane tickets from London to CWL by setting up a Price Alert. We'll send you an email or notification on the app when fares go down.

  • Filters make it easier to scoop up a deal on your flight from London to Cardiff Airport. Choose the departure times, carriers and stops that line up with your plans. Then sort the results by 'Cheapest' to find the most affordable option fast.

The best time to fly from London to Cardiff Airport (CWL)

  • December is the quietest month for flights from London to Cardiff Airport (CWL), while June is the most popular. Figure out the ideal time to go to Cardiff based on whether you like a bustling atmosphere or a more laid-back vibe.

  • Lock in a London to CWL plane ticket departing in July if you want to explore the city during its warmest month. You can expect temperatures in Cardiff to range from 11ºC (52ºF) to 22ºC (72ºF).

  • January sees temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Search for cheap tickets from London to Cardiff Airport around that time if you want to travel when it's cooler.

More about Cardiff

Explore more of the United Kingdom

  • Cardiff is easy to fall in love with, but there are so many other corners of the United Kingdom you should also see. About 225 kilometres east of Cardiff, a visit to London will keep your itinerary busy. Start with attractions like The British Museum, Westminster Abbey and Big Ben.

  • If there's time to check out another well-known destination in the United Kingdom, consider Manchester, roughly 241 kilometres north of Cardiff. Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry are key highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.