How much does a train ticket cost from London to Llanelli?

The cheapest train tickets from London to Llanelli start from £46. The average price for this train route is around £97. Busbud recommends booking your tickets in advance for the best chance of getting the lowest possible price.

How long is the train journey from London to Llanelli?

The average train journey time from London to Llanelli is 3h 12m, covering a distance of 171 miles. The fastest train gets you there in 3h 6m and is operated by Great Western Railway .

Which train operators serve the London to Llanelli route?

Several major train operators run on this route with 3 trains available per day.

What are the earliest and latest departure times for the train from London to Llanelli?

The earliest train from London to Llanelli departs at 07:46. And the latest train departs at 17:48.

Train London to Llanelli from £43

Next train departures

Next departures from London to Llanelli on 4 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	11:48	London Paddington	3h 12m	15:00	Llanelli	Cheapest
Train	16:18	London Paddington	3h 8m	19:26	Llanelli	Fastest
Train	11:48	London Paddington	3h 12m	15:00	Llanelli	No tags
Train	16:18	London Paddington	3h 8m	19:26	Llanelli	No tags
Train	17:48	London Paddington	3h 17m	21:05	Llanelli	No tags

Next departures from London to Llanelli on 5 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	11:48	London Paddington	3h 12m	15:00	Llanelli	Cheapest
Train	16:18	London Paddington	3h 8m	19:26	Llanelli	Fastest
Train	09:48	London Paddington	3h 12m	13:00	Llanelli	No tags
Train	09:48	London Paddington	3h 12m	13:00	Llanelli	No tags
Train	11:48	London Paddington	3h 12m	15:00	Llanelli	No tags

Next departures from London to Llanelli on 7 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	09:31	London Paddington	3h 17m	12:48	Llanelli	Cheapest
Train	11:45	London Paddington	3h 6m	14:51	Llanelli	Fastest
Train	09:31	London Paddington	3h 17m	12:48	Llanelli	No tags
Train	11:45	London Paddington	3h 6m	14:51	Llanelli	No tags
Train	13:45	London Paddington	3h 11m	16:56	Llanelli	No tags

Next departures from London to Llanelli on 8 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	11:48	London Paddington	3h 12m	15:00	Llanelli	Cheapest
Train	16:18	London Paddington	3h 8m	19:26	Llanelli	Fastest
Train	09:48	London Paddington	3h 12m	13:00	Llanelli	No tags
Train	09:48	London Paddington	3h 12m	13:00	Llanelli	No tags
Train	11:48	London Paddington	3h 12m	15:00	Llanelli	No tags

Next departures from London to Llanelli on 9 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	11:48	London Paddington	3h 12m	15:00	Llanelli	Cheapest
Train	16:18	London Paddington	3h 8m	19:26	Llanelli	Fastest
Train	09:48	London Paddington	3h 12m	13:00	Llanelli	No tags
Train	09:48	London Paddington	3h 12m	13:00	Llanelli	No tags
Train	11:48	London Paddington	3h 12m	15:00	Llanelli	No tags

Last refresh of the prices: Yesterday at 14:48 GMT.

Compare 3 ways to travel from London to Llanelli

We recommend carpooling

Among the sustainable travel choices, the carpool stands out as a good way to reach Llanelli. The journey takes about 2 hours 40 minutes and with fares starting at just £16, it presents an excellent value for a comfortable ride.

1carpool per day

2h 40mAverage duration

174 milesDistance

12kgCO₂ emissions

	Average price	Average duration	CO₂ emissions
Bus	Average price£15 - £32	Average duration5h 50m	CO₂ emissions 7kg CO₂e
Train	Average price£46 - £217	Average duration3h 12m	CO₂ emissions 7kg CO₂e
Carpool	Average price£16 - £20	Average duration2h 40m	CO₂ emissions 12kg CO₂e

Train Companies

Great Western Railway

4/542 reviews

Staff5

Timeliness4.7

Cleanliness4.7

WiFi4

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 £46

GB train companies: Amtrak, Trenitalia, Renfe, VIA Rail Canada, RegioJet, FlixTrain, CrossCountry

Frequently asked questions about travelling from London to Llanelli 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 London to Llanelli?
The cheapest train tickets from London to Llanelli start from £46. The average price for this train route is around £97. Busbud recommends booking your tickets in advance for the best chance of getting the lowest possible price.
How long is the train journey from London to Llanelli?
The average train journey time from London to Llanelli is 3h 12m, covering a distance of 171 miles. The fastest train gets you there in 3h 6m and is operated by Great Western Railway.
Which train operators serve the London to Llanelli route?
Several major train operators run on this route with 3 trains available per day.
What are the earliest and latest departure times for the train from London to Llanelli?
The earliest train from London to Llanelli departs at 07:46. And the latest train departs at 17:48.

Find cheapest prices for trains

Price is for a one-way ticket for one passenger and based on past searches.

Best price found

02/12

£69

03/12

£70

Today

£69

05/12

£69

06/12

No data

07/12

£69

08/12

£69

09/12

£69

The cheapest trip from London to Llanelli was searched and found on 2 Dec 2025 with a price of £69

To save money and be sure you have the best seat, it's a good idea to buy your train tickets from London to Llanelli as early as possible.

You can expect to pay from £69 to £248 for a train ticket from London to Llanelli based on the last 2 days. You can expect to find the cheapest price for the trip at £69, which is on 2025-12-05.