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

The average train ticket price from Llanelli to London is $90. The best way to find train tickets from Llanelli to London is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!

How long is the train trip from Llanelli to London?

A train trip between Llanelli and London is around 3h 24m, although the fastest train will take about 3h 11m. This is the time it takes to travel the 174 miles that separates the two cities.

How many daily trains are there between Llanelli and London?

The number of trains from Llanelli to London can differ depending on the day of the week. On average, there are 4. Some trains are direct while others have layovers. Simplify your train trip from Llanelli to London by comparing and selecting the train that fits your travel style and budget on Busbud.

Which train companies travel from Llanelli to London?

When taking the train from Llanelli to London, you can travel comfortably and safely with Great Western Railway.

What are the best sights and things to do in London?

Once in London, you can explore the city. The top sights and things to do are Madame Tussauds London, Kew Gardens, London Mithraeum, The British Museum, St Paul's Cathedral.

Train Llanelli to London from $50

Next train departures

Next departures for Llanelli to London on November 17
Operated by	Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended	Price and booking link
	Train	6:46pm	Llanelli	3h 23m	10:09pm	London Paddington	CheapestFastest
	Train	6:46pm	Llanelli	3h 23m	10:09pm	London Paddington	No tags

Next departures for Llanelli to London on November 18
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	6:46pm	Llanelli	3h 23m	10:09pm	London Paddington	Cheapest
Train	11:55am	Llanelli	3h 17m	3:12pm	London Paddington	Fastest
Train	7:56am	Llanelli	3h 24m	11:20am	London Paddington	No tags
Train	7:56am	Llanelli	3h 24m	11:20am	London Paddington	No tags
Train	9:49am	Llanelli	3h 21m	1:10pm	London Paddington	No tags

Last refresh of the prices: Yesterday at 11:01 AM GMT.

Compare 3 ways to go from Llanelli to London

We recommend carpooling

Among the sustainable travel choices, the carpool stands out as the good way to reach London. The journey takes about 3 hours 40 minutes and with fares starting at just $35, it presents an excellent value for a comfortable ride.

1carpool per day

3h 40mAverage Duration

174 milesDistance

12kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$20 - $39	Average Duration5h 25m	CO₂ emissions 7kg CO₂e
Train	Average Price$52 - $158	Average Duration3h 24m	CO₂ emissions 7kg CO₂e
Carpool	Average Price$35 - $35	Average Duration3h 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. Travelers were especially satisfied with the staff and the seats but often complained with the wifi. Great Western Railway ticket prices on this trip start at $52

Train and bus companies in GB:Amtrak, Trenitalia, Renfe, VIA Rail Canada, RegioJet, FlixTrain, CrossCountry

Frequently asked questions about traveling from Llanelli to London by train

How much does a train ticket from Llanelli to London cost?
How long is the train trip from Llanelli to London?
How many daily trains are there between Llanelli and London?
Which train companies travel from Llanelli to London?
What are the best sights and things to do in London?

Find cheapest prices for trains

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

Best price found

11/15

$84

11/16

$89

Today

$78

11/18

$78

11/19

$51

11/20

$78

11/21

No data

11/22

$78

The cheapest trip from Llanelli to London was searched and found on Nov 19, 2025 with a price of $51

To 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 $51 to $146 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 $51 which is on 2025-11-19.