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Carmarthen to Northampton trains

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Trip Overview

The average train between Carmarthen and Northampton takes 6h 29m and the fastest train takes 5h 5m. There is a train service every few hours from Carmarthen to Northampton. 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 29m
Duration
234 mi
Distance
£114
Average price
Hourly
Frequency

Train via Cardiff

best
  1. Take the train from Carmarthen to Cardiff Centraltrain train
  2. Take the train from Cardiff Central to Birmingham New Streettrain train
  3. Take the train from Birmingham New Street to Northamptontrain train
6h 1m
£85–168

Carmarthen to Northampton train times

Trains run hourly between Carmarthen and Northampton. The earliest departure is at 5:32 AM in the morning, and the last departure from Carmarthen is at 10:41 PM which arrives into Northampton at 10:07 AM. All services require a transfer at Cardiff Central and take an average of 6h 29m. The schedules shown below are for the next available departures.

Departing Saturday, October 10, 2026

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    Arrives next day

    Transport for WalesCross CountryWest Midlands Trains17h 33m • 2 changes

Departing Sunday, October 11, 2026

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    Great Western Railway (GWR)Cross CountryWest Midlands Trains5h 42m • 2 changes

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    Transport for WalesCross CountryWest Midlands Trains5h 33m • 2 changes

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    Transport for WalesCross CountryWest Midlands Trains6h 40m • 2 changes

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    Transport for WalesCross CountryWest Midlands Trains6h 37m • 2 changes
  • Show more

Departing Monday, October 12, 2026

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    Transport for WalesCross CountryWest Midlands Trains5h 35m • 2 changes

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    Transport for WalesCross CountryWest Midlands Trains6h 7m • 2 changes

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    Great Western Railway (GWR)Cross CountryWest Midlands Trains5h 44m • 2 changes

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    Transport for WalesCross CountryWest Midlands Trains5h 37m • 2 changes
  • Show more

Departing Tuesday, October 13, 2026

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    Transport for WalesCross CountryWest Midlands Trains5h 35m • 2 changes

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    Transport for WalesCross CountryWest Midlands Trains6h 7m • 2 changes

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    Great Western Railway (GWR)Cross CountryWest Midlands Trains5h 44m • 2 changes

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    Transport for WalesCross CountryWest Midlands Trains5h 37m • 2 changes
  • Show more

Departing Wednesday, October 14, 2026

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    Transport for WalesCross CountryWest Midlands Trains5h 35m • 2 changes

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    Transport for WalesCross CountryWest Midlands Trains6h 7m • 2 changes

  •  → 

    Great Western Railway (GWR)Cross CountryWest Midlands Trains5h 44m • 2 changes

  •  → 

    Transport for WalesCross CountryWest Midlands Trains5h 37m • 2 changes
  • Show more

Frequently asked questions

Want to know about travelling from Carmarthen to Northampton? 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 Northampton.ExpandLaunch map view
  • Distance: 233.6 mi
  • Duration: 6h 29m

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

You can take a train from Carmarthen to Northampton via Cardiff Central and Birmingham New Street in around 6h 1m.

Operators