The cheapest and fastest trains from Brentford to Portsmouth
Cheapest price
£18
Average price
£24
Fastest journey
2 h 19 m
Average duration
2 h 24 m
Trains per day
2
Distance
94 km
The best way to find a cheap train ticket from Brentford to Portsmouth is to book your journey as far in advance as possible and to avoid travelling at rush hour.
The average ticket from Brentford to Portsmouth will cost around £24 if you buy it on the day, but you can find cheap train tickets today for only £18.
Of the 2 trains that leave Brentford for Portsmouth every day 2 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
These direct trains cover the 94 km distance in an average of 2 h 24 m but if you time it right, some trains will get you there in just 2 h 19 m .
The slowest trains will take 2 h 29 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.




Live departures
Brentford to Portsmouth train times
The table below shows live departures for Brentford to Portsmouth trains for tomorrow, Friday 7 November. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Changes | Tickets |
|---|---|---|---|---|---|
![]() | 04:39 Brentford | 2h29 | 07:08 Portsmouth | 0 changesdirect | |
![]() | 08:24 Brentford | 2h19 | 10:43 Portsmouth | 0 changesdirect | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Brentford to Portsmouth by train
Compare train prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
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Journey information
Overview: Train from Brentford to Portsmouth
Trains from Brentford to Portsmouth run on average 2 times per day, taking around 2h 16m. Cheap train tickets for this journey start at £11 if you book in advance.
The earliest train runs at 03:12, the last at 22:57. The fastest train covers the 94 km distance in 2h 13m.
Distance 94 km |
Average train duration 2h 16m |
Cheapest ticket price £11 |
Trains per day 2 |
Fastest train 2h 13m |
First train 03:12 |
Last train 22:57 |
Train companies: South Western Railway from Brentford to Portsmouth trainsSouth Western Railway trains will get you between Brentford and Portsmouth from £11. With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
South Western Railway
FAQs: Brentford to Portsmouth train
Find answers to the most common questions about traveling from Brentford to Portsmouth by train. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest train, the cheapest option, or tips for making the most of your visit at Portsmouth, this guide helps you travel smarter and with confidence.

popular train stations
Important Stations and Airports in Brentford and Portsmouth
- Opening hours: Monday - Friday 06:30 - 10:30 Saturday Closed Sunday Closed
- Car Park: Station Car Park
- Staff help available: No
- Step free access coverage: Yes
- Step free access note: Step-free category A Station. Level access from either side of station. Lifts between platforms or alternative step-free route via street (under 400m)
- Accessible ticket machines: There are accessible ticket machines at this station
- Accessible ticket machines note: All South Western Railway ticket machines are able to sell tickets with Disabled Persons Railcard discounts. All machines are accessible, however the station may not be so please check the station access note for further details
- Accessible toilets: Yes
- Ramp for train access: Yes
- Wheelchairs available: No
- Impaired mobility set down / pick up points available: No
- Toilets Location: The toilets are located on Platform 2. The National key toilets are located in the Booking Hall on Platform 2; these toilets are operated by a radar key.
- National key toilets: Yes
- National key toilets location: The National key toilets are located in the Booking Hall on Platform 2; these toilets are operated by a radar key.
- Baby changing facilities: No
- Waiting rooms location: No waiting room but seating available on the platform.
- Storage sheltered: Yes
- Storage location: Platform 1 and car park
- Storage CCTV: Yes
- Location for Rail Replacement Services: To Hounslow: Boston Manor Road (A3002) Bus Stop SK To Kew Bridge: Boston Manor Road (A3002) Bus Stop SM
- Car Park: No
- Waiting rooms location: There is no waiting room but seating is available at the station.
- Storage sheltered: No
- Storage location: Platform 2
- Storage CCTV: Yes
- Location for Rail Replacement Services: To Brentford: Kew Bridge Road (A315) Bus Stop S To Barnes: Chiswick High Road (A205) Bus Stop X in front of station
- Opening hours: Monday - Friday 05:55 - 19:40 Saturday 05:55 - 19:40 Sunday 09:10 - 18:40
- Car Park: Station Car Park
- Staff help available: Yes
- Step free access coverage: Yes
- Step free access note: Step-free category A Station - This station has step-free access to all platforms
- Accessible ticket machines: There are accessible ticket machines at this station
- Accessible ticket machines note: All South Western Railway ticket machines are able to sell tickets with Disabled Persons Railcard discounts. All machines are accessible, however the station may not be so please check the station access note for further details
- Accessible toilets: Yes
- Ramp for train access: Yes
- Wheelchairs available: Yes
- Impaired mobility set down / pick up points available: No
- Toilets Location: The toilets are located in the Booking Hall on Platform 1. The National key toilets are located in the Booking Hall on Platform 1; these toilets are operated by a radar key.
- National key toilets: Yes
- Baby changing facilities: No
- Storage sheltered: Yes
- Storage location: Platform 1
- Storage CCTV: No
- Information available from staff: Yes - from help point
- Helpline Contact: 0800 5282100
- Location for Rail Replacement Services: Goldsmith Avenue (for buses in both directions). Goldsmith Avenue is located on the opposite side of the footbridge from the main entrance/taxi rank/Railway club.
- Car Park: No
- Storage sheltered: No
- Storage CCTV: Yes
- Location for Rail Replacement Services: To Portsmouth: Norway Road bus stop by Vauxhall Garage To Cosham / Havant: Norway Road bus stop opposite Vauxhall Garage
- Opening hours: Monday - Friday 05:40 - 20:30 Saturday 05:40 - 20:30 Sunday 06:40 - 20:40
- Car Park: Station Car Park
- Staff help available: Yes
- Step free access coverage: Yes
- Step free access note: Step-free category A Station - This station has step-free access to all platforms. Please be aware that some platforms at this station have no or only partial tactile paving on the platform edge.
- Accessible ticket machines: There are accessible ticket machines at this station
- Accessible ticket machines note: All South Western Railway ticket machines are able to sell tickets with Disabled Persons Railcard discounts. All machines are accessible, however the station may not be so please check the station access note for further details
- Accessible toilets: Yes
- Ramp for train access: Yes
- Wheelchairs available: Yes
- Impaired mobility set down / pick up points available: No
- Toilets Location: The toilets are located in the Lower Concourse, next to the gateline. The National key toilets are located in the Lower Concourse; these toilets are operated by a radar key. A radar key is available from station staff upon request. A 'National Key Scheme' key [RADAR] can be purchased by contacting the following. Address: 12 City Forum, 250 City Road, London, EC1V 8AF. Tel: 020 7250 3222. Minicom: 020 7250 4119. Fax: 020 7250 0212. Email: [email protected]
- National key toilets: Yes
- Baby changing facilities: No
- Storage sheltered: Yes
- Storage location: Concourse and car park
- Storage CCTV: Yes
- Location for Rail Replacement Services: Station Street bus stop at side of Railway Station near Matalan car park.
- Opening hours: Monday - Friday 05:50 - 19:00 Saturday 06:30 - 19:00 Sunday 08:00 - 19:00
- Car Park: No
- Staff help available: Yes
- Step free access coverage: Yes
- Step free access note: Step-free category B Station - Steps or 20m ramp (approx. 1:11 gradient) to main entrance, or steps to side entrance. 32m ramp (gradient up to 1:8) from Wightlink IoW ferry terminal. Level access to all platforms. Stepped footbridge between platforms is also available. Please be aware that this station has no tactile paving on the platform edge.
- Accessible ticket machines: There are accessible ticket machines at this station
- Accessible ticket machines note: All South Western Railway ticket machines are able to sell tickets with Disabled Persons Railcard discounts. All machines are accessible, however the station may not be so please check the station access note for further details
- Accessible toilets: Yes
- Ramp for train access: Yes
- Wheelchairs available: Yes
- Impaired mobility set down / pick up points available: No
- Toilets Location: The toilets are located on Platform 1. The National key toilets are located on Platform 1; these toilets are operated by a radar key.
- National key toilets: Yes
- National key toilets location: The National key toilets are located on Platform 1; these toilets are operated by a radar key.
- Baby changing facilities: No
- Storage sheltered: No
- Storage location: Platform 1 and outside booking hall
- Storage CCTV: Yes
- Location for Rail Replacement Services: Hard Interchange Stands G, H or J
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