Trains from Heathrow Terminal 3 to Cardiff from $57.00*

Arriving in Cardiff

Trains running from Heathrow Terminal 3 to Cardiff will typically depart from Heathrow T3 Bus and arrive at Cardiff Central. The journey takes around 2h 57m.

Book cheap train tickets from Heathrow Terminal 3 to Cardiff

It doesn’t need to be difficult to find cheap train tickets from Heathrow Terminal 3 to Cardiff. If you know where to look and how to take advantage of available discounts and travel options, then saving money with Trip.com becomes second nature. Here are some of our top tips to help you save money on your train travel.

Get 1/3 off with a Railcard

Railcards offer discounts of up to 1/3 on most tickets. There are various types of Railcards available to cater to different groups of travelers, such as the 16–25 Railcard, the Family & Friends Railcard, and the Senior Railcard. For more information on Railcards and how they can help you save, visit Railcards here.

Travel in a group to save 1/3

If you are traveling in a group of three to nine people, you can benefit from group travel discounts. Many train companies offer GroupSave options, which provide a discount of up to 1/3 on standard fares. This makes traveling from Heathrow Terminal 3 to Cardiff more affordable for families, friends, or colleagues planning a trip together.

Traveling during off-peak hours

Taking advantage of Off-Peak train tickets is another effective way to save money on your train journey from Heathrow Terminal 3 to Cardiff. These tickets are generally cheaper than peak-time tickets and can be used during less busy periods, typically outside of the morning and evening rush hours. If your schedule allows for flexibility, opting for off-peak hours can lead to substantial cost savings. It's important to note that in most cities and large towns, off-peak hours usually start at 09:30 from Monday to Friday, while in other areas, they typically begin at 09:00.