Harpenden to Portsmouth Trains

Harpenden to Portsmouth trains

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Trip Overview

The average train between Harpenden and Portsmouth takes 2h 45m and the fastest train takes 2h 19m. The train runs at least 2 times per hour from Harpenden to Portsmouth. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

2h 45m
Duration: 100 mi
Distance: £46
Average price: Every 30 minutes
Frequency

Train via London

best

Take the train from London Waterloo to Portsmouth & Southseatrain London Waterloo - Portsmouth Harbour / ...

2h 21m

£41–78

Harpenden to Portsmouth train times

Trains run every 30 minutes between Harpenden and Portsmouth. The earliest departure is at 1:49 AM at night, and the last departure from Harpenden is at 11:42 PM which arrives into Portsmouth at 7:16 AM. All services require a transfer at West Hampstead Thameslink and take an average of 2h 45m. The schedules shown below are for the next available departures.

Departing Thursday, October 22, 2026

8:39 AM → 10:58 AM
2h 19m • 2 changes
8:55 AM → 11:44 AM
2h 48m • 2 changes
9:25 AM → 11:58 AM
2h 33m • 2 changes
9:55 AM → 12:44 PM
2h 48m • 2 changes
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Departing Friday, October 23, 2026

1:49 AM → 7:16 AM
5h 27m • 2 changes
4:47 AM → 7:45 AM
2h 58m • 2 changes
5:17 AM → 8:09 AM
2h 52m • 2 changes
6:05 AM → 8:34 AM
2h 29m • 2 changes
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Departing Saturday, October 24, 2026

4:47 AM → 7:37 AM
2h 50m • 2 changes
5:52 AM → 8:47 AM
2h 55m • 2 changes
6:31 AM → 8:58 AM
2h 27m • 2 changes
6:52 AM → 9:32 AM
2h 40m • 2 changes
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Departing Sunday, October 25, 2026

7:01 AM → 9:54 AM
2h 53m • 2 changes
7:31 AM → 10:00 AM
2h 29m • 2 changes
8:06 AM → 10:55 AM
2h 49m • 2 changes
8:44 AM → 11:07 AM
2h 23m • 2 changes
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Departing Monday, October 26, 2026

4:47 AM → 7:45 AM
2h 58m • 2 changes
5:17 AM → 8:09 AM
2h 52m • 2 changes
6:05 AM → 8:34 AM
2h 29m • 2 changes
6:39 AM → 9:03 AM
2h 24m • 2 changes
Show more

Departing Tuesday, October 27, 2026

4:47 AM → 7:45 AM
2h 58m • 2 changes
5:17 AM → 8:09 AM
2h 52m • 2 changes
6:05 AM → 8:34 AM
2h 29m • 2 changes
6:39 AM → 9:03 AM
2h 24m • 2 changes
Show more

Departing Wednesday, October 28, 2026

4:47 AM → 7:45 AM
2h 58m • 2 changes
5:17 AM → 8:09 AM
2h 52m • 2 changes
6:05 AM → 8:34 AM
2h 29m • 2 changes
6:39 AM → 9:03 AM
2h 24m • 2 changes
Show more

Frequently asked questions

Want to know about travelling from Harpenden to Portsmouth? 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.