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Travelling from Grangetown (Cardiff) to Heathrow Airport, the fastest train takes 2 hours 51 minutes with an average travel time of 3 hours 6 minutes. 32 trains are running daily, with the first departing at 09:15 and the last at 23:30. Stay updated with live train status, times, delays, and cancellations on TrainPal.
| Departs | Arrives | Operator | ||
|---|---|---|---|---|
09:15 | 3 hours 6 minutes, 3 change | 12:21 | Transport for Wales | Find tickets |
09:15 | 3 hours 10 minutes, 2 change | 12:25 | Transport for Wales | Find tickets |
09:45 | 2 hours 55 minutes, 2 change | 12:40 | Transport for Wales | Find tickets |
09:45 | 3 hours 6 minutes, 3 change | 12:51 | Transport for Wales | Find tickets |
10:45 | 2 hours 56 minutes, 2 change | 13:41 | Transport for Wales | Find tickets |
The train journey from Grangetown (Cardiff) to Heathrow Airport combines efficiency with pleasure, featuring beautiful scenery and comfort. With frequent departures from Grangetown (Cardiff), you can get to Heathrow Airport in just 2 hours 51 minutes, making it an ideal and convenient choice for travelling between them.

The fastest train journey time from Grangetown (Cardiff) to Heathrow Airport is 2 hours 51 minutes . Use our Train Journey Planner to find direct trains, avoid transfers, and compare travel times for each route to see if there are fewer stops to make your journey seamless.
No, unfortunately, you need to transfer from Grangetown (Cardiff) to Heathrow Airport. Still, the TrainPal Train Journey Planner helps you find the best train. Just input your origin or destination places, then click "Search" to see the suitable route.

Grangetown (Cardiff) to Heathrow Airport trains are generally punctual, but delays or disruptions can happen due to weather, strikes, and other factors. With Train Journey Planner, finding a train timetable for your trip is simple. Enter your departure and arrival stations to view a detailed schedule of available trains. Provide your travel details to find the best routes, connections, and train times.
It’s recommended to reach the train station 15-20 minutes before your train is set to leave. This gives you sufficient time to locate your platform, particularly in larger stations. Arriving early is also beneficial if you need to collect tickets or find your way around an unfamiliar station, helping to minimise any potential stress.
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Make use of our Train Journey Planner for detailed transfer information, ensuring your journey is smooth and efficient, saving you valuable time and effort, and allowing you to rest completely for your travels.

Use TrainPal for quick access to live updates and notifications. If your phone allows messages from us, you'll receive instant notifications about train cancellations directly on your screen.
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