Trains from London to Carmarthen

  • Lowest price from $91.65
  • Average duration 3h 42m
  • Connections per day 11
  • Distance 293 km
  • CO₂ per person 4 kg

train from London to Carmarthen

The journey from London to Carmarthen is about 293 km. On average a train trip takes 3h 42m with 11 connections per day.

Lowest price $91.65
Trip duration 3h 42m
Connections per day 11
Lowest price $91.65
Highest price $91.65
First departure 08:30 AM
Last departure 07:45 PM
Distance 293 km
Departure London
Arrival Carmarthen
Travel operator Great Western Railway, Transport for Wales
Find the best price
Great Western Railway20.51 kg CO₂
13:48London paddington
3h 34m
17:22Carmarthen Railway Station
$86.07
direct
Great Western Railway20.51 kg CO₂
11:48London paddington
3h 39m
15:27Carmarthen Railway Station
$86.07
direct
Great Western Railway20.51 kg CO₂
10:20London waterloo east
4h 38m
15:27Carmarthen Railway Station
$87.62
1 changes

Next departures from London to Carmarthen

Sample times and fares for the coming days — book to confirm availability and price.

Great Western Railway $548.34
08:30 London paddington
3h 52m · 2 changes
13:08 Carmarthen Railway Station
Great Western Railway $548.34
09:31 London paddington
3h 41m · 2 changes
13:48 Carmarthen Railway Station
Great Western Railway $548.34
10:44 London paddington
3h 39m · 2 changes
14:53 Carmarthen Railway Station
Great Western Railway $548.34
11:44 London paddington
3h 38m · 2 changes
16:04 Carmarthen Railway Station
Great Western Railway $548.34
12:44 London paddington
3h 39m · 2 changes
17:37 Carmarthen Railway Station
Great Western Railway $548.34
13:44 London paddington
3h 43m · 2 changes
17:52 Carmarthen Railway Station
Great Western Railway $548.34
14:44 London paddington
3h 41m · 2 changes
19:36 Carmarthen Railway Station
Great Western Railway $548.34
15:44 London paddington
3h 41m · 2 changes
19:59 Carmarthen Railway Station
Great Western Railway $548.34
17:44 London paddington
3h 46m · 2 changes
21:52 Carmarthen Railway Station
Great Western Railway $548.34
18:44 London paddington
3h 45m · 2 changes
23:44 Carmarthen Railway Station
See all timetables

Carriers on this route

Learn more about carriers on this route.

Great Western Railway (GWR) is a British railway company that operates passenger services between London and the southwest of England, as well as parts of Wales. It was founded in 1833 and was originally known as the Great Western Railway Company. GWR is now owned by FirstGroup. The company is known for its iconic green livery and its historic steam locomotives, including the famous Flying Scotsman.
The Welsh Government owns the non-profit organization Transport for Wales. It is responsible for the procurement and management of passenger rail services in Wales, as well as the development of the Welsh rail network. The company was established in 2018, taking over from Arriva Trains Wales, and operates services across Wales and the Borders. Transport for Wales is a great choice for your journeys within Wales, such as Cardiff to Aberdare or Newport to Swansea, or for your trips in England, like Manchester to Chester or Birmingham to Shrewsbury, and even for your travel between England and Wales.

CO₂ emissions by mode

train 20.51kg
bus 21.98kg
flight 58.6kg
carpool 46.88kg
How much CO₂ is emitted travelling by train from London to Carmarthen?

The train journey between London and Carmarthen emits 20.51kg of CO₂.

How much CO₂ do I save by taking the train between London and Carmarthen?

Taking the train between London and Carmarthen saves 38.09kg of CO₂ compared to a flight, 1.47kg compared to the bus and 26.37kg compared to the car.

FAQ