Mountain Ash to London Trains

Mountain Ash to London trains

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Trip Overview

The average train between Mountain Ash and London takes 3h 23m and the fastest train takes 3h 4m. There is a train service every few hours from Mountain Ash to London. 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 23m
Duration: 163 mi
Distance: £84
Average price: Hourly
Frequency

Train

best

Take the train from Mountain Ash to Cardiff Centraltrain Aberdare - Merthyr Tydfil / ...
Take the train from Cardiff Central to London Paddingtontrain Swansea - London Paddington / ...

3h 12m

£73–143

Mountain Ash to London train times

Trains run hourly between Mountain Ash and London. The earliest departure is at 6:02 AM in the morning, and the last departure from Mountain Ash is at 11:02 PM which arrives into London at 7:16 AM. All services require a transfer, and take on average 3h 23m. The schedules shown below are for the next available departures.

Departing Monday, August 10, 2026

6:02 PM → 9:10 PM
3h 8m • 1 change
7:02 PM → 10:09 PM
3h 7m • 1 change
8:02 PM → 11:11 PM
3h 9m • 1 change
11:02 PM → 7:16 AM
Arrives next day
8h 14m • 1 change

Departing Tuesday, August 11, 2026

6:02 AM → 9:12 AM
3h 10m • 1 change
6:32 AM → 9:44 AM
3h 12m • 1 change
7:02 AM → 10:14 AM
3h 12m • 1 change
7:32 AM → 10:36 AM
3h 4m • 1 change
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Departing Wednesday, August 12, 2026

6:02 AM → 9:12 AM
3h 10m • 1 change
6:32 AM → 9:44 AM
3h 12m • 1 change
7:02 AM → 10:14 AM
3h 12m • 1 change
7:32 AM → 10:36 AM
3h 4m • 1 change
Show more

Frequently asked questions

Want to know about travelling from Mountain Ash to London? 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.