Next train departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Train | Llanelli | London Paddington | Cheapest | ||||
| Train | Llanelli | London Paddington | Fastest | ||||
| Train | Llanelli | London Paddington | No tags | ||||
| Train | Llanelli | London Paddington | No tags | ||||
| Train | Llanelli | London Paddington | No tags |
Last refresh of the prices: Yesterday at 11:19 GMT.
Compare 3 ways to travel from Llanelli to London
Among the sustainable travel choices, the carpool stands out as a good way to reach London. The journey takes about 3 hours 40 minutes and with fares starting at just £26, it presents an excellent value for a comfortable ride.
Train Companies
Based on 42 reviews, the company was rated 4 stars on Busbud. Travellers were especially satisfied with the staff and the seats but often complained with the Wi-Fi. Great Western Railway ticket prices on this trip start at £40
Frequently asked questions about travelling from Llanelli to London by train
Please note that timetables, routes, or operator details shown here may be updated or vary at the time of your journey.
How much does a train ticket cost from Llanelli to London?
The cheapest train tickets from Llanelli to London start from £40. The average price for this train route is around £72. Busbud recommends booking your tickets in advance for the best chance of getting the lowest possible price.
How long is the train journey from Llanelli to London?
The average train journey time from Llanelli to London is 3h 23m, covering a distance of 171 miles. The fastest train gets you there in 3h 12m and is operated by Great Western Railway.
Which train operators serve the Llanelli to London route?
Several major train operators run on this route with 4 trains available per day.
What are the earliest and latest departure times for the train from Llanelli to London?
The earliest train from Llanelli to London departs at 07:51. And the latest train departs at 19:54.
Find cheapest prices for trains
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Llanelli to London was searched and found on 17 Dec 2025 with a price of £38To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Llanelli to London as early as possible.
You can expect to pay from £38 to £249 for a train ticket from Llanelli to London based on the last 2 days. You can expect to find the cheapest price for the trip at £38, which is on 2025-12-17.
