Heathrow to Porthmadog Trains

Heathrow to Porthmadog trains

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Trip Overview

The average train between Heathrow and Porthmadog takes 8h 54m and the fastest train takes 6h 52m. The train service runs several times per day from Heathrow to Porthmadog. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

8h 54m
Duration: 277 mi
Distance: £119
Average price: Every 4 hours
Frequency

Train

best

Take the train from London Euston to Birmingham New Streettrain
Take the train from Birmingham New Street to Machynllethtrain
Take the train from Machynlleth to Porthmadogtrain

8h 27m

£94–195

Heathrow to Porthmadog train times

Trains run every 4 hours between Heathrow and Porthmadog. The earliest departure is at 5:21 AM in the morning, and the last departure from Heathrow is at 10:36 PM which arrives into Porthmadog at 10:49 AM. All services require a transfer at Tottenham Court Road Station and take an average of 8h 54m. The schedules shown below are for the next available departures.

Departing Sunday, October 18, 2026

9:21 PM → 10:49 AM
Arrives next day
13h 28m • 4 changes

Departing Monday, October 19, 2026

5:36 AM → 12:50 PM
7h 14m • 4 changes
7:51 AM → 2:54 PM
7h 3m • 4 changes
9:51 AM → 4:51 PM
7h • 4 changes
11:51 AM → 6:56 PM
7h 5m • 4 changes
Show more

Departing Tuesday, October 20, 2026

5:36 AM → 12:50 PM
7h 14m • 4 changes
7:51 AM → 2:54 PM
7h 3m • 4 changes
9:51 AM → 4:51 PM
7h • 4 changes
11:51 AM → 6:56 PM
7h 5m • 4 changes
Show more

Departing Wednesday, October 21, 2026

5:36 AM → 12:50 PM
7h 14m • 4 changes
7:51 AM → 2:54 PM
7h 3m • 4 changes
9:51 AM → 4:51 PM
7h • 4 changes
11:51 AM → 6:56 PM
7h 5m • 4 changes
Show more

Departing Thursday, October 22, 2026

5:36 AM → 12:50 PM
7h 14m • 4 changes
7:51 AM → 2:54 PM
7h 3m • 4 changes
9:51 AM → 4:51 PM
7h • 4 changes
11:51 AM → 6:56 PM
7h 5m • 4 changes
Show more

Departing Friday, October 23, 2026

5:36 AM → 12:50 PM
7h 14m • 4 changes
7:51 AM → 2:54 PM
7h 3m • 4 changes
9:51 AM → 4:51 PM
7h • 4 changes
11:51 AM → 6:56 PM
7h 5m • 4 changes
Show more

Departing Saturday, October 24, 2026

5:21 AM → 12:50 PM
7h 29m • 4 changes
7:51 AM → 2:54 PM
7h 3m • 4 changes
9:51 AM → 4:51 PM
7h • 4 changes
11:51 AM → 6:56 PM
7h 5m • 4 changes
Show more

Frequently asked questions

Want to know about travelling from Heathrow to Porthmadog? 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.