- Must visit
HMS Victory
A major naval museum where visitors can board Nelson’s flagship and explore life at sea through preserved decks and displays.
Cheapest price on 18 Sept
£52
Average ticket price on 18 Sept
£52
Fastest journey on 18 Sept
2 h 30 m
Average journey duration on 18 Sept
2 h 30 m
Trains on 18 Sept
1
Distance
86 km
The best way to find a cheap train ticket from Slough to Portsmouth is to book your journey as far in advance as possible and to avoid travelling at rush hour.
The average ticket from Slough to Portsmouth will cost around £52 if you buy it on the day, but you can find cheap train tickets today for only £52.
On Fri 18 Sept, we found 1 trains from Slough to Portsmouth, including 1 direct services.
These direct trains cover the 86 km distance in an average of 2 h 30 m but if you time it right, some trains will get you there in just 2 h 30 m .
The slowest trains will take 2 h 30 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.


Omio recommends booking the coach as it is the most popular option from Slough to Portsmouth among Omio's users. If you are prioritising price, take the coach, with an average ticket price of £13 For those with little time, consider booking a train, which has an average total journey time of 2h 46m. Average ticket prices depend on the travel mode: a coach costs an average of £13, while a train costs an average of £56.
Distance: 86 km
| Train | Most popular Coach | Driving |
|---|---|---|
£56 Average Price | £13 Average Price Cheapest | £17 Average Price (fuel + tolls) |
2h 46m Average total duration Fastest 2h 16m Onboard + 30m Additional time* | 3h 23m Average total duration 2h 53m Onboard + 30m Additional time* | 1h 21m Average total duration (door-to-door) |
![]() Most popular train company | ![]() Most popular bus company | Your own car or car rental |
Direct Options | Direct Options | Direct Options |
This is compared to other travel options from Slough to Portsmouth:
A coach is £43 less than a train for this route with tickets for a train from Slough to Portsmouth costing on average £56.
Other travel options to Portsmouth take longer:
Coach takes on average 2h 53m.
Tickets start at around £56 compared to roughly £17 in fuel and tolls — a saving of about £-39.00. The journey takes 2h 16m versus 1h 21m by car, so you'll arrive a bit later, but you can work, read, or sleep along the way rather than spending the time behind the wheel. You'll also save the hassle of parking at the other end.
Driving is worth it if you're on a tight schedule, travelling as a group, or want to stop somewhere en route.
The table below shows live departures for Slough to Portsmouth trains for tomorrow, Friday 18 September. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Changes | Tickets |
|---|---|---|---|---|---|
![]() | 10:17 Slough | 2h30 | 12:47 Portsmouth | 0 changesdirect | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare coach and 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.
Trains from Slough to Portsmouth run on average 6 times per day, taking around 2h 16m. Cheap train tickets for this journey start at £56 but you can travel from only £13 by coach.
The earliest train runs at 04:00, the last at 22:37. The fastest train covers the 86 km distance in 2h 18m.
Distance 86 km |
Average train duration 2h 16m |
Cheapest ticket price £56 |
Trains per day 6 |
Fastest train 2h 18m |
First train 4:00 |
Last train 22:37 |
Cheapest Month Jul |
Cheapest Day Tue |
High Season Apr - Jun |
Low Season Jan - Mar |
Best time to book 35 days |
Discover the best of Portsmouth — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Portsmouth trip today.
A major naval museum where visitors can board Nelson’s flagship and explore life at sea through preserved decks and displays.
This working museum ship reveals cramped Victorian submarine life and the engineering behind one of Britain’s earliest submarines.
Portsmouth’s city museum covers local history, football heritage and art, with exhibits spanning the city’s people and places.
A historic waterfront district with cobbled lanes, pubs, sea walls and several key heritage sites within easy walking distance.
A long pebble beach promenade with piers, gardens and open sea views, well suited to relaxed walks along the Southsea seafront.
A broad common by the Solent, popular for walks, picnics and views of passing ships, the Isle of Wight and seafront landmarks.
A rich fruit cake packed with dried fruit, spice and treacle, long associated with Hampshire baking and often enjoyed at Christmas and local celebrations.
Fresh crab landed on the South Coast, usually served simply in sandwiches, salads or dressed shells, prized for sweet meat and Portsmouth’s seaside setting.
A classic Portsmouth and Hampshire pub dish of smoked haddock, potato and onion in a creamy sauce, baked until golden and comforting in coastal weather.
Popular Southsea spot for classic fish and chips and fresh seafood, with a casual atmosphere close to the seafront.
Smart waterfront restaurant in Old Portsmouth serving modern British dishes with strong seafood options in an elegant, relaxed setting.
Historic pub in Old Portsmouth known for traditional British cooking, cask ales and harbour views in a characterful setting.
Moderate for the UK. Hotels can be pricey in summer, but dining and local buses remain manageable for most city-break budgets.
Restaurants: 10-12.5% if not already added. Taxis: round up or 10%. Cafés and pubs: tipping is optional, though small change is appreciated for table service.
Official public transport app
Portsmouth Harbour -> Guildhall Square, Portsmouth
Find answers to the most common questions about traveling from Slough 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.

Most Slough to Portsmouth trains use the Slough to Portsmouth & Southsea station pair, with some services arriving at Portsmouth Harbour. Use this guide to compare Slough and Portsmouth train stations on this route, check city-centre transport, alongside checking practicalities like train station facilities and services.
Slough has practical services for this route, including Wifi, Lockers, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental, Car Rental, Information Desk and Luggage Carts.
Food options include: The Moon and Spoon, The Red Lion
Free. ATMs are available in the train station.
Ticket office support is available at Slough. Information desks are located in the main hall.
Luggage storage is available at Slough. Lost and found is available at the station.
Available at Slough: Parking, Taxis, WC.
Available at Slough: Bike Parking, Bike Rental, Car Rental.
Accessibility facilities are available at Slough: Elevators, ramps.
Nearby hotels include Holiday Inn Slough - Windsor, Moxy Slough, Travelodge Slough.
Portsmouth & Southsea has practical services for this route, including Wifi, Parking, Dining, ATM, Accessibility, WC, Hotel, Lost and Found Office, Ticket Office, Bike Parking and Bike Rental.
Food and drink options are available at Portsmouth & Southsea.
Wi-Fi is available at Portsmouth & Southsea. ATMs are available at Portsmouth & Southsea.
Ticket office support is available at Portsmouth & Southsea.
Lost and found is available at the station.
Available at Portsmouth & Southsea: Parking, WC.
Available at Portsmouth & Southsea: Bike Parking, Bike Rental.
Accessibility facilities are available at Portsmouth & Southsea: 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.
Portsmouth Harbour is 1 km from Portsmouth city centre. Public transport options include:
Portsmouth Harbour has practical services for this route, including Wifi, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental and Car Rental.
Food and drink options are available at Portsmouth Harbour.
Wi-Fi is available at Portsmouth Harbour. ATMs are available at Portsmouth Harbour.
Ticket office support is available at Portsmouth Harbour.
Lost and found is available at the station.
Available at Portsmouth Harbour: Parking, Taxis, WC.
Available at Portsmouth Harbour: Bike Parking, Bike Rental, Car Rental.
Accessibility facilities are available at Portsmouth Harbour: 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.
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