
No booking fees on the app

Best Price Promise

Delay Repay

24/7 customer support
Brentford to Portsmouth Harbour train timetable
From Brentford to Portsmouth Harbour, take the fastest train in 2 hours 7 minutes, typically 2 hours 37 minutes. Daily, 93 trains depart from Brentford, with the first at 05:39 and the last at 23:57. Check real-time updates for train times, delays, and cancellations. TrainPal saves you time, effort, and money.
| Departs | Arrives | Operator | ||
|---|---|---|---|---|
20:54 Brentford | 2 hours 12 minutes, 2 change | 23:06 Portsmouth Harbour | South Western Railway | Find tickets |
20:54 Brentford | 2 hours 54 minutes, 1 change | 23:48 Portsmouth Harbour | South Western Railway | Find tickets |
21:24 Brentford | 2 hours 49 minutes, 1 change | 00:13 Portsmouth Harbour | South Western Railway | Find tickets |
21:54 Brentford | 2 hours 19 minutes, 2 change | 00:13 Portsmouth Harbour | South Western Railway | Find tickets |
22:24 Brentford | 4 hours 18 minutes, 2 change | 02:42 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
The train journey from Brentford to Portsmouth Harbour combines efficiency with pleasure, featuring beautiful scenery and comfort. With frequent departures from Brentford, you can get to Portsmouth Harbour in just 2 hours 7 minutes, making it an ideal and convenient choice for travelling between them.

Planning and booking
How much does it cost for a train from Brentford to Portsmouth Harbour?
The average fare from Brentford to Portsmouth Harbour is approximately €12.29, but the final price fluctuates. The actual cost depends on your travel dates, how far in advance you book, and your ticket's flexibility. To see the current price for your journey, please search with your specific 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 2 hours 7 minutes . Use our Train Journey Planner to find direct trains, avoid transfers, and compare travel times for each route to see if there are fewer stops to make your journey seamless.
Are there direct trains from Brentford to Portsmouth Harbour?
No, unfortunately, you need to transfer from Brentford to Portsmouth Harbour. Still, the TrainPal Train Journey Planner helps you find the best train. Just input your origin or destination places, then click "Search" to see the suitable route.
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?
Typically, you can book UK train tickets up to 12 weeks ahead of your travel date. This is when the cheapest Advance tickets are usually released by train operators. To secure the best price, we strongly recommend booking as early as possible.

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 disruptions can happen due to weather, strikes, and other factors. With Train Journey Planner, finding a train timetable for your trip is simple. Enter your departure and arrival stations to view a detailed schedule of available trains. Provide your travel details to find the best routes, connections, and train times.
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 route from Brentford to Portsmouth Harbour are equipped with Wi-Fi. Passengers can also enjoy complimentary food, drinks, and power sockets for a more comfortable journey. Please note that the availability of these services can vary depending on the train company
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
-
Luggage
Your free luggage allowance includes up to three items per passenger, covering standard bags like suitcases, backpacks, and other similarly-sized items.
-
Bicycle
You must make a free reservation to bring a bike on most trains, but space is limited. Standard and folding bikes are generally accepted, and some operators also permit tandems and e-bikes. However, e-scooters, motorcycles, tricycles, and bicycle trailers are prohibited. We strongly advise checking the train operator's specific cycle policy on their website before travelling.
-
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.
-
Pets
You are welcome to bring up to 2 pets with you at no extra cost. Dogs must be kept on a lead and other animals in a suitable carrier. Please note that for the comfort of all passengers, pets are not allowed on seats or in restaurant carriages.
-
Passenger assistance
All operators offer assistance services for passengers with disabilities or additional needs. This should be booked in advance to guarantee availability.
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

Your plans have changed?

Your train was disrupted?
More train routes
* 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.





















New user welcome pack