Rome2Rio

Cardiff to Dunstable trains

Find Transport to Dunstable

View schedule

Trip Overview

The average train between Cardiff and Dunstable takes 3h 3m and the fastest train takes 2h 47m. There is an hourly train service from Cardiff to Dunstable. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

3h 3m
Duration
182 mi
Distance
£95
Average price
Hourly
Frequency

Train

best
  1. Take the train from Cardiff Central to London Paddingtontrain train Swansea - London Paddington / ...
  2. Take the train from Farringdon to Leagravetrain train Brighton - Bedford / ...
3h
£80–138

Cardiff to Dunstable train times

Trains run hourly between Cardiff and Dunstable. The earliest departure is at 5:07 AM in the morning, and the last departure from Cardiff is at 9:20 PM which arrives into Dunstable at 12:37 AM. All services require a transfer at London Paddington and take an average of 3h 3m. The schedules shown below are for the next available departures.

Departing Sunday, October 11, 2026

  •  → 

    Great Western Railway (GWR)Elizabeth Line (TfL)Thameslink2h 57m • 2 changes

  •  → 

    Great Western Railway (GWR)Elizabeth Line (TfL)Thameslink3h 3m • 2 changes

  •  → 

    Great Western Railway (GWR)Elizabeth Line (TfL)Thameslink2h 57m • 2 changes

  •  → 

    Great Western Railway (GWR)Elizabeth Line (TfL)Thameslink2h 57m • 2 changes
  • Show more

Departing Monday, October 12, 2026

  •  → 

    Great Western Railway (GWR)Elizabeth Line (TfL)Thameslink3h 28m • 2 changes

  •  → 

    Great Western Railway (GWR)Elizabeth Line (TfL)Thameslink2h 51m • 2 changes

  •  → 

    Great Western Railway (GWR)Elizabeth Line (TfL)Thameslink3h 11m • 2 changes

  •  → 

    Great Western Railway (GWR)Elizabeth Line (TfL)Thameslink3h 9m • 2 changes
  • Show more

Departing Tuesday, October 13, 2026

  •  → 

    Great Western Railway (GWR)Elizabeth Line (TfL)Thameslink3h 28m • 2 changes

  •  → 

    Great Western Railway (GWR)Elizabeth Line (TfL)Thameslink2h 51m • 2 changes

  •  → 

    Great Western Railway (GWR)Elizabeth Line (TfL)Thameslink3h 11m • 2 changes

  •  → 

    Great Western Railway (GWR)Elizabeth Line (TfL)Thameslink3h 9m • 2 changes
  • Show more

Frequently asked questions

Want to know about travelling from Cardiff to Dunstable? 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 Cardiff to Dunstable.ExpandLaunch map view
  • Distance: 181.5 mi
  • Duration: 3h 3m

What companies run services between Cardiff, Wales and Dunstable, England?

You can take a train from Cardiff Central to Leagrave via London Paddington, Farringdon Without, and Farringdon in around 3h.

Operators