Dunstable to Portsmouth Trains

Dunstable to Portsmouth trains

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Trip Overview

The average train between Dunstable and Portsmouth takes 3h 2m and the fastest train takes 2h 36m. The train runs at least 2 times per hour from Dunstable 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 2m
Duration: 108 mi
Distance: £53
Average price: Every 30 minutes
Frequency

Train via London

best

Take the train from Leagrave to West Hampstead Thameslinktrain Bedford - Brighton / ...
Take the train from London Waterloo to Portsmouth & Southseatrain London Waterloo - Portsmouth Harbour / ...

2h 34m

£49–78

Dunstable to Portsmouth train times

Trains run every 30 minutes between Dunstable and Portsmouth. The earliest departure is at 1:36 AM at night, and the last departure from Dunstable is at 11:28 PM which arrives into Portsmouth at 7:16 AM. All services require a transfer at West Hampstead Thameslink and take an average of 3h 2m. The schedules shown below are for the next available departures.

Departing Tuesday, November 3, 2026

9:38 PM → 7:16 AM
Arrives next day
9h 38m • 2 changes

Departing Wednesday, November 4, 2026

4:34 AM → 7:45 AM
3h 11m • 2 changes
5:04 AM → 8:09 AM
3h 5m • 2 changes
5:38 AM → 8:34 AM
2h 55m • 2 changes
6:19 AM → 9:03 AM
2h 44m • 2 changes
Show more

Departing Thursday, November 5, 2026

4:34 AM → 7:45 AM
3h 11m • 2 changes
5:04 AM → 8:09 AM
3h 5m • 2 changes
5:38 AM → 8:34 AM
2h 55m • 2 changes
6:19 AM → 9:03 AM
2h 44m • 2 changes
Show more

Departing Friday, November 6, 2026

1:36 AM → 7:16 AM
5h 40m • 2 changes
4:34 AM → 7:45 AM
3h 11m • 2 changes
5:04 AM → 8:09 AM
3h 5m • 2 changes
5:38 AM → 8:34 AM
2h 55m • 2 changes
Show more

Departing Saturday, November 7, 2026

3:36 AM → 7:12 AM
3h 36m • 2 changes
4:34 AM → 7:37 AM
3h 3m • 2 changes
5:38 AM → 8:47 AM
3h 9m • 2 changes
6:18 AM → 8:58 AM
2h 40m • 2 changes
Show more

Departing Sunday, November 8, 2026

6:48 AM → 9:54 AM
3h 6m • 2 changes
7:18 AM → 10:00 AM
2h 42m • 2 changes
7:52 AM → 10:55 AM
3h 3m • 2 changes
8:22 AM → 11:07 AM
2h 45m • 2 changes
Show more

Departing Monday, November 9, 2026

4:34 AM → 7:45 AM
3h 11m • 2 changes
5:04 AM → 8:09 AM
3h 5m • 2 changes
5:38 AM → 8:34 AM
2h 56m • 2 changes
6:19 AM → 9:03 AM
2h 44m • 2 changes
Show more

Departing Tuesday, November 10, 2026

4:34 AM → 7:45 AM
3h 11m • 2 changes
5:04 AM → 8:09 AM
3h 5m • 2 changes
5:38 AM → 8:34 AM
2h 56m • 2 changes
6:19 AM → 9:03 AM
2h 44m • 2 changes
Show more

Frequently asked questions

Want to know about travelling from Dunstable 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.