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Brentford to Portsmouth Harbour train timetable
The journey from Brentford to Portsmouth Harbour on the fastest train in 2h 7m, usually 2h 37m. Each day, 93 trains leave from Brentford, starting at 05:39 and ending at 23:57. Get real-time updates on train schedules, delays, and cancellations. Save time, effort, and money with TrainPal.
| Departs | Arrives | Operator | ||
|---|---|---|---|---|
05:39 Brentford | 2 hours 33 minutes, 1 change | 08:12 Portsmouth Harbour | South Western Railway | Find tickets |
06:09 Brentford | 2 hours 27 minutes, 1 change | 08:36 Portsmouth Harbour | South Western Railway | Find tickets |
06:09 Brentford | 2 hours 27 minutes, 2 change | 08:36 Portsmouth Harbour | South Western Railway | Find tickets |
06:09 Brentford | 2 hours 41 minutes, 1 change | 08:50 Portsmouth Harbour | South Western Railway | Find tickets |
06:39 Brentford | 2 hours 29 minutes, 1 change | 09:08 Portsmouth Harbour | South Western Railway | Find tickets |
Brentford to Portsmouth Harbour train tickets and times
Plan your journey from Brentford to Portsmouth Harbour with ease. Explore the first and last train times, departure and arrival stations, distance, journey time, and price options to make the most of your trip.
Brentford to Portsmouth Harbour train travel guide
Travelling by train from Brentford to Portsmouth Harbour is efficient and offers a scenic and comfortable experience. With frequent departures from Brentford, you can reach Portsmouth Harbour in just 2h 7m, making it one of the fastest and most convenient ways to travel between these two places.

Planning and booking
How much does it cost for a train from Brentford to Portsmouth Harbour?
Ticket prices from Brentford to Portsmouth Harbour average around £10.10, but vary based on travel dates and ticket flexibility. To see the exact fare for your trip, please perform a search with your preferred dates.
What is the best way to travel from Brentford to Portsmouth Harbour by train?
What is the fastest train from Brentford to Portsmouth Harbour?
The fastest train journey time from Brentford to Portsmouth Harbour is 2h 7m. Direct trains can save significant time by avoiding transfers. Always check if a direct route is available for your journey. Moreover, when searching for trains, consider the total travel time. Some routes with fewer stops or more efficient schedules might be faster.
Are there direct trains from Brentford to Portsmouth Harbour?
No, there are no direct trains from Brentford to Portsmouth Harbour. However, you can still find the best train options using the TrainPal Train Journey Planner. Simply enter your departure and arrival stations to see all available train services and plan your trip
Is it worth taking a train from Brentford to Portsmouth Harbour?
Yes, the train is always an excellent choice that balances convenience, comfort, and efficiency. It's more environmentally friendly and relaxing than driving, as you avoid traffic and parking. While coaches may be cheaper, the train provides superior comfort, more space, and greater scheduling flexibility. With the added benefit of arriving directly in the city centre, it's a very convenient way to travel.
How far in advance can I book my train ticket?
To get the best price on UK train tickets, it is essential to book as early as you can. Train operators generally release their cheapest Advance tickets up to 12 weeks ahead of the travel date, making early booking the most effective way to secure a lower fare.

Check timetables and during the journey
Are Brentford to Portsmouth Harbour trains punctual, and how can I check real-time information?
Brentford to Portsmouth Harbour 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.
How early should I arrive for a train in the UK?
Typically, you should plan to arrive at the station 15-20 minutes before your train is scheduled to depart. However, the size of the station and your familiarity with it can affect this timing. For larger or less familiar stations, leaving home earlier can help reduce stress and ensure a more relaxed journey.
Do Brentford to Portsmouth Harbour trains offer Wi-Fi and other facilities?
Yes, most trains on the Brentford to Portsmouth Harbour route offer amenities like Wi-Fi, food services, and various seating options. Additional facilities may include power sockets, accessibility features, and luggage storage. Check the specific amenities offered by the train operator when booking, as these can vary.
How do I transfer between train stations in the UK?
Check our Train Journey Planner, which provides detailed information about transfers to ensure your journey is uninterrupted, saving you time and effort, and allowing you to get a full rest for travelling.
What is the difference between Standard and First Class?
While Standard Class offers a good travel experience, First Class provides an upgrade in comfort and service. This typically includes enhanced amenities like complimentary food and drinks, though the specific offerings depend on the train operator.

Other things you might be interested
Are there discounts for students or seniors on UK train tickets?
Can UK train tickets be refunded or changed?
How do I check train delays and cancellations in the UK?
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.
Which train companies operate the Brentford to Portsmouth Harbour route?
The train from Brentford to Portsmouth Harbour is operated by Southern. To see which operator runs a specific service, the easiest way to identify it is to use the search bar on this page. The name of the train company will be clearly displayed next to each journey option in the search results.
Essential onboard rules and facilities
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Luggage
You can bring up to three pieces of luggage for free, including satchels, backpacks, suitcases, and similar items.
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Bicycle
Bike reservations are mandatory and free for most train journeys, but space is limited. Standard bicycles and folding bikes are generally allowed. Some operators also permit tandems and e-bikes. Please note that e-scooters, motorcycles, tricycles, and bicycle trailers are not permitted. We strongly recommend checking the specific cycle policy on your train operator's website before you travel.
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Children
Children under 5 usually travel free. Children aged 5–15 get 50% off, and 16-year-olds can use the 16-17 Saver Railcard for 50% off.
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Pets
Bring up to 2 pets free; keep dogs on a lead or in a carrier. No animals on seats or in restaurant carriages.
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Passenger assistance
Passengers with disabilities or additional needs can arrange assistance with their train operator, if required. To ensure support is available for your journey, this service should be booked in advance.
How to buy cheap Brentford to Portsmouth Harbour train tickets

Cheaper train tickets for less busy times. Combine with Advance fares for the best deals.
Compensation and refunds

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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.





















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