Rome2Rio

Carmarthen to Southampton trains

Find Transport to Southampton

View schedule

Trip Overview

The average train between Carmarthen and Southampton takes 6h 12m and the fastest train takes 4h 56m. The train service runs several times per day from Carmarthen to Southampton. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

6h 12m
Duration
191 mi
Distance
£84
Average price
Every 4 hours
Frequency

Train

best
  1. Take the train from Carmarthen to Filton Abbey Woodtrain train Fishguard Harbour - Bristol Temple Meads / ...
  2. Take the train from Filton Abbey Wood to Southampton Centraltrain train Cardiff Central - Portsmouth Harbour / ...
5h 2m
£67–124

Carmarthen to Southampton train times

Trains run every 4 hours between Carmarthen and Southampton. The earliest departure is at 5:32 AM in the morning, and the last departure from Carmarthen is at 6:57 PM which arrives into Southampton at 9:02 AM. All services require a transfer, and take on average 6h 12m. The schedules shown below are for the next available departures.

Departing Saturday, October 31, 2026

  •  → 

    Arrives next day

    Transport for WalesGreat Western Railway (GWR)17h 6m • 1 change

Departing Monday, November 2, 2026

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 30m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 10m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 14m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 5m • 1 change
  • Show more

Departing Tuesday, November 3, 2026

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 30m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 10m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 14m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 5m • 1 change
  • Show more

Departing Wednesday, November 4, 2026

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 30m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 10m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 14m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 5m • 1 change
  • Show more

Departing Thursday, November 5, 2026

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 30m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 10m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 14m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 5m • 1 change
  • Show more

Departing Friday, November 6, 2026

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 30m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 10m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 14m • 1 change

  •  → 

    Transport for WalesGreat Western Railway (GWR)5h 5m • 1 change
  • Show more

Frequently asked questions

Want to know about travelling from Carmarthen to Southampton? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.

Map of how to get from Carmarthen to Southampton.ExpandLaunch map view
  • Distance: 191.4 mi
  • Duration: 6h 12m

What companies run services between Carmarthen, Wales and Southampton, England?

You can take a train from Carmarthen to Southampton Central via Filton Abbey Wood in around 5h 2m.

Operators