Watford to Portsmouth Trains

Watford to Portsmouth trains

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Trip Overview

The average train between Watford and Portsmouth takes 2h 31m and the fastest train takes 2h 9m. There is an hourly train service from Watford 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 31m
Duration: 93 mi
Distance: £39
Average price: Hourly
Frequency

Train via London Euston

best

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

2h 18m

£33–87

Watford to Portsmouth train times

Trains run hourly between Watford and Portsmouth. The earliest departure is at 5:11 AM in the morning, and the last departure from Watford is at 11:59 PM which arrives into Portsmouth at 7:16 AM. All services require a transfer at London Euston and take an average of 2h 31m. The schedules shown below are for the next available departures.

Departing Saturday, October 17, 2026

7:46 PM → 10:02 PM
2h 16m • 2 changes
8:20 PM → 10:33 PM
2h 12m • 2 changes
9:21 PM → 11:32 PM
2h 10m • 2 changes
10:18 PM → 12:31 AM
Arrives next day
2h 13m • 2 changes
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Departing Sunday, October 18, 2026

6:48 AM → 9:54 AM
3h 6m • 2 changes
7:51 AM → 10:00 AM
2h 9m • 2 changes
8:47 AM → 11:07 AM
2h 20m • 2 changes
9:48 AM → 12:08 PM
2h 20m • 2 changes
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Departing Monday, October 19, 2026

5:11 AM → 8:09 AM
2h 57m • 2 changes
6:12 AM → 8:34 AM
2h 22m • 2 changes
6:54 AM → 9:03 AM
2h 9m • 2 changes
7:47 AM → 10:03 AM
2h 15m • 2 changes
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Frequently asked questions

Want to know about travelling from Watford 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.

What companies run services between Watford, England and Portsmouth, England?

South Western Railway operates a train from London Waterloo to Portsmouth & Southsea every 30 minutes. Tickets cost £27–60 and the journey takes 1h 31m.

Operators