Portsmouth to Slough Trains

Portsmouth to Slough trains

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Trip Overview

The average train between Portsmouth and Slough takes 2h 28m and the fastest train takes 2h 7m. There is a train service every few hours from Portsmouth to Slough. 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 28m
Duration: 80 mi
Distance: £41
Average price: Hourly
Frequency

Train

best

Take the train from Portsmouth & Southsea to Basingstoketrain Portsmouth Harbour - London Waterloo / ...
Take the train from Reading to Sloughtrain Didcot Parkway - Slough / ...

2h 16m

£29–73

Portsmouth to Slough train times

Trains run hourly between Portsmouth and Slough. The earliest departure is at 4:57 AM at night, and the last departure from Portsmouth is at 9:00 PM which arrives into Slough at 11:38 PM. All services require a transfer at Basingstoke and take an average of 2h 28m. The schedules shown below are for the next available departures.

Departing Monday, October 26, 2026

4:57 AM → 7:36 AM
2h 39m • 2 changes
5:55 AM → 8:15 AM
2h 20m • 2 changes
6:28 AM → 8:36 AM
2h 7m • 2 changes
6:55 AM → 9:24 AM
2h 29m • 2 changes
Show more

Departing Tuesday, October 27, 2026

4:57 AM → 7:36 AM
2h 39m • 2 changes
5:55 AM → 8:15 AM
2h 20m • 2 changes
6:28 AM → 8:36 AM
2h 7m • 2 changes
6:55 AM → 9:24 AM
2h 29m • 2 changes
Show more

Departing Wednesday, October 28, 2026

4:57 AM → 7:36 AM
2h 39m • 2 changes
5:55 AM → 8:15 AM
2h 20m • 2 changes
6:28 AM → 8:36 AM
2h 7m • 2 changes
6:55 AM → 9:24 AM
2h 29m • 2 changes
Show more

Departing Thursday, October 29, 2026

4:57 AM → 7:36 AM
2h 39m • 2 changes
5:55 AM → 8:15 AM
2h 20m • 2 changes
6:28 AM → 8:36 AM
2h 7m • 2 changes
6:55 AM → 9:24 AM
2h 29m • 2 changes
Show more

Departing Friday, October 30, 2026

4:57 AM → 7:36 AM
2h 39m • 2 changes
5:55 AM → 8:15 AM
2h 20m • 2 changes
6:28 AM → 8:36 AM
2h 7m • 2 changes
6:55 AM → 9:24 AM
2h 29m • 2 changes
Show more

Departing Saturday, October 31, 2026

6:00 AM → 8:31 AM
2h 31m • 2 changes
7:00 AM → 9:21 AM
2h 21m • 2 changes
8:00 AM → 10:21 AM
2h 21m • 2 changes
9:00 AM → 11:21 AM
2h 21m • 2 changes
Show more

Departing Sunday, November 1, 2026

7:22 AM → 10:02 AM
2h 40m • 2 changes
8:22 AM → 10:32 AM
2h 10m • 2 changes
9:22 AM → 11:35 AM
2h 13m • 2 changes
10:22 AM → 12:35 PM
2h 13m • 2 changes
Show more

Frequently asked questions

Want to know about travelling from Portsmouth to Slough? 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.