Find out what a flight from London Heathrow to Cardiff might cost

Prices vary based on date, airline, and availability. Compare several options if you're flying between London and Cardiff.

£147 is the best price recorded in the last 15 days.

Try shifting your departure forward or backward by a day to find better options. If you’re looking for a good deal, consider flying outside peak hours as well.

Which airports serve London and Cardiff?

When planning a trip of about 125 mi, it's a good idea to check flights from surrounding airports too.

• Airports in London: London is connected to 6 airports - City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.
• Airports in Cardiff: The only active airport in Cardiff is Cardiff.

The closest airport isn’t always the cheapest — it’s worth checking the alternatives too. In some cities, smaller airports offer lower fares than the main ones.

Adjust your flight filters for London Heathrow – Cardiff

Jetcost gives you tools to search smarter. Pick your ideal price range, airline, departure time, and flight type — then compare offers from agencies like Expedia, eDreams, and more.

Other popular destinations

Planning a trip to United Kingdom? These cities are popular too: Edinburgh, Glasgow, London, Manchester, Newquay.

Sorting options let you see the most affordable flights first. Some results may include extra fees shown only at checkout — always read carefully to see what’s included.