
No booking fees on the app

Best Price Promise

Delay Repay

24/7 customer support
Brentford to Portsmouth Harbour train timetable
Travelling from Brentford to Portsmouth Harbour, the fastest train takes 2h 41m with an average travel time of 3h 12m. 21 trains are running daily, with the first departing at 00:34 and the last at 23:43. Stay updated with live train status, times, delays, and cancellations on TrainPal.
| Departs | Arrives | Operator | ||
|---|---|---|---|---|
00:34 Brentford | 10h 21m, 2 change | 10:55 Portsmouth Harbour | South Western Railway | Find tickets |
08:19 Brentford | 3h 13m, 2 change | 11:32 Portsmouth Harbour | South Western Railway | Find tickets |
09:19 Brentford | 3h 12m, 2 change | 12:31 Portsmouth Harbour | South Western Railway | Find tickets |
10:19 Brentford | 3h 12m, 2 change | 13:31 Portsmouth Harbour | South Western Railway | Find tickets |
11:19 Brentford | 3h 12m, 2 change | 14:31 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
Taking the train from Brentford to Portsmouth Harbour is both efficient and enjoyable, offering scenic views and comfort. With frequent departures from Brentford, you can arrive at Portsmouth Harbour in just 2h 41m, making it a quick and convenient option for travelling between these two places.

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 €12.22, 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 2h 41m. 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, 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, choosing the train offers an excellent blend of comfort, speed, and convenience. It's a more relaxing and sustainable option than driving, allowing you to bypass traffic and parking hassles. While coaches might have lower fares, the train provides a superior travel experience with more space and a more flexible timetable. Its key advantage is arriving directly in the city centre, making it one of the most efficient ways to reach your destination.
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
How do I find Brentford to Portsmouth Harbour train timetables?
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 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?
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.
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 route from Brentford to Portsmouth Harbour is operated by Great Western Railway. To find the operator for any other journey, perform a search for your route on this page; the operator's name will be listed with each travel option.
Essential onboard rules and facilities
-
Luggage
Each passenger is permitted to bring up to 3 pieces of luggage at no extra cost. This can include a combination of items such as suitcases, backpacks, and satchels.
-
Bicycle
A free reservation is required for bikes on most journeys due to limited space. While standard bicycles and folding bikes are widely permitted, some operators have provisions for e-bikes and tandems. Please note that e-scooters, motorcycles, tricycles, and bike trailers are not allowed. As policies vary, it is essential to consult your specific train operator's website for their definitive cycle rules before you travel.
-
Children
Discounts are available for young travellers based on age: Travellers under 5 usually travel free, children aged 5–15 get a 50% discount, and 16 to 17-year-olds can use a 16-17 Saver Railcard to get 50% off.
-
Pets
Bring up to 2 pets free; keep dogs on a lead or in a carrier. No animals 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