Grantham to Portsmouth Trains

Trip Overview

The average train between Grantham and Portsmouth takes 3h 33m and the fastest train takes 3h 2m. There is an hourly train service from Grantham 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.

3h 33m
Duration: 181 mi
Distance: £67
Average price: Hourly
Frequency

Train

best

Take the train from Grantham to King's Crosstrain Leeds - London Kings Cross / ...
Take the train from London Waterloo to Portsmouth & Southseatrain London Waterloo - Portsmouth Harbour / ...

3h 20m

£49–110

Grantham to Portsmouth train times

Trains run hourly between Grantham and Portsmouth. The earliest departure is at 5:47 AM in the morning, and the last departure from Grantham is at 10:59 PM which arrives into Portsmouth at 8:09 AM. All services require a transfer at London Kings Cross and take an average of 3h 33m. The schedules shown below are for the next available departures.

Departing Saturday, October 24, 2026

5:49 AM → 8:58 AM
3h 9m • 2 changes
6:17 AM → 9:32 AM
3h 15m • 2 changes
6:39 AM → 9:58 AM
3h 19m • 2 changes
7:29 AM → 10:32 AM
3h 3m • 2 changes
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Departing Sunday, October 25, 2026

9:35 AM → 12:54 PM
3h 19m • 2 changes
9:44 AM → 1:07 PM
3h 23m • 2 changes
10:32 AM → 1:54 PM
3h 22m • 2 changes
10:45 AM → 2:00 PM
3h 15m • 2 changes
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Departing Monday, October 26, 2026

5:47 AM → 9:03 AM
3h 16m • 2 changes
6:18 AM → 9:31 AM
3h 13m • 2 changes
6:38 AM → 10:03 AM
3h 24m • 2 changes
7:23 AM → 10:44 AM
3h 21m • 2 changes
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Departing Tuesday, October 27, 2026

5:47 AM → 9:03 AM
3h 16m • 2 changes
6:18 AM → 9:31 AM
3h 13m • 2 changes
6:38 AM → 10:03 AM
3h 24m • 2 changes
7:23 AM → 10:44 AM
3h 21m • 2 changes
Show more

Departing Wednesday, October 28, 2026

5:47 AM → 9:03 AM
3h 16m • 2 changes
6:18 AM → 9:31 AM
3h 13m • 2 changes
6:38 AM → 10:03 AM
3h 24m • 2 changes
7:23 AM → 10:44 AM
3h 21m • 2 changes
Show more

Departing Thursday, October 29, 2026

5:47 AM → 9:03 AM
3h 16m • 2 changes
6:18 AM → 9:31 AM
3h 13m • 2 changes
6:38 AM → 10:03 AM
3h 24m • 2 changes
7:23 AM → 10:44 AM
3h 21m • 2 changes
Show more

Departing Friday, October 30, 2026

5:47 AM → 9:03 AM
3h 16m • 2 changes
6:18 AM → 9:31 AM
3h 13m • 2 changes
6:38 AM → 10:03 AM
3h 24m • 2 changes
7:23 AM → 10:44 AM
3h 21m • 2 changes
Show more

Frequently asked questions

Want to know about travelling from Grantham 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 Grantham, England and Portsmouth, England?

You can take a train from Grantham to Portsmouth & Southsea via London Kings Cross, Euston station, Waterloo Station, and London Waterloo in around 3h 20m.

Operators