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The journey from Brighton to Portsmouth on the fastest train in 1 hour 22 minutes, usually 1 hour 25 minutes. Each day, 49 trains leave from Brighton, starting at 00:10 and ending at 22:40. Get real-time updates on train schedules, delays, and cancellations. Save time, effort, and money with TrainPal.
| Departs | Arrives | Operator | ||
|---|---|---|---|---|
00:10 Brighton | 5 hours 40 minutes, 2 change | 05:50 Portsmouth & Southsea | Southern | Find tickets |
05:13 Brighton | 1 hour 37 minutes, 1 change | 06:50 Portsmouth & Southsea | Southern | Find tickets |
05:43 Brighton | 1 hour 36 minutes, 1 change | 07:19 Portsmouth & Southsea | Southern | Find tickets |
06:13 Brighton | 1 hour 33 minutes, 1 change | 07:46 Portsmouth & Southsea | Southern | Find tickets |
06:28 Brighton | 1 hour 22 minutes, Direct | 07:50 Portsmouth & Southsea | Southern | Find tickets |
Taking the train from Brighton to Portsmouth is both efficient and enjoyable, offering scenic views and comfort. With frequent departures from Brighton, you can arrive at Portsmouth in just 1 hour 22 minutes, making it a quick and convenient option for travelling between these two places.

The quickest train journey from Brighton to Portsmouth takes 1 hour 22 minutes . Utilise our Train Journey Planner to locate direct trains, minimise transfers, and compare travel times across various routes. Discover the most efficient way to travel with fewer stops for a smooth and seamless journey.
No, you will need to transfer when travelling from Brighton to Portsmouth. TrainPal Train Journey Planner will assist you in finding the best train route. Enter the origin or destination places and other relevant details, then click "Search" to find the most suitable route.

Brighton to Portsmouth trains are generally punctual, but delays or cancellations can occur due to weather, strikes, and other factors. After purchasing a ticket, use TrainPal to track live train updates. Before buying a ticket, our Train Journey Planner provides all necessary booking information. Simply enter your departure and arrival stations, click 'Search,' and view routes labelled 'Cheapest' or 'Fastest,' with all details displayed.
Usually, you need to arrive at a station at least 15-20 minutes ahead of time. However, consider the station's size and your familiarity with it. If the station is large and you are not familiar with it, leaving home as early as possible is the best choice. This can reduce your stress and ensure a relaxing journey.
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Make use of our Train Journey Planner for detailed transfer information, ensuring your journey is smooth and efficient, saving you valuable time and effort, and allowing you to rest completely for your travels.

Checking train delays and cancellations in the UK is simple. Utilise the TrainPal mobile app for real-time information. We offer live updates, including live train status and notifications of any train strikes.
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Trainpal makes it easy to handle travel changes, ticket refunds, and Delay Repay requests.


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* Prices are dynamic and subject to change. Ticket prices vary based on time of day, route, and class. This pricing does not apply to discounted Split tickets and Railcards.
* By combining Advance Ticket offers with split tickets, you’ll get lower fares when you book at least one week before travel (excluding Anytime fares bought on the day of travel). Availability depends on the specific route and cannot be combined with other promotions.