| First train | 04:27 | |
|---|---|---|
| Last train | 23:02 | |
| Departure station | Heathrow Airport | |
| Arrival station | Llanelli | |
| Journey time | From 3h 31m | |
| Distance | 160 miles (257 km) | |
| Frequency | 74 trains per day | |
| Changes | 1 change | |
| Train operators | CrossCountry, Great Western Railway, Heathrow Express, Transport for Wales |
Want to travel from Heathrow Airport to Llanelli by train? Start your journey with us.
It takes an average of 5 hours 11 minutes to travel from Heathrow Airport to Llanelli by train. You'll find on average 74 trains per day running on this route.
There aren't any direct services on this line, but it's still easy to travel to Llanelli by train; you'll need to make 1 change.
Great Western Railway, Transport for Wales, CrossCountry and Heathrow Express trains operate on this route.
Generally, booking Advance train tickets works out cheaper.
See our Journey Planner for up-to-date times and prices.
For more money-saving tips on UK and European train travel, read our cheap train tickets guide.