Compensation and refunds
Starting a smooth journey can sometimes be challenging, but Trainpal is here to help!

If you find trains for a cheaper price elsewhere, let us know and we'll refund the difference*
Save more with a variety of promo codes. Book on the TrainPal app with no booking fees.
24/7 fast customer service with prompt responses to your queries
Seamless rail travel with easy changes and refunds for peace of mind.
€31.23
From 06 Oct to 12 Oct
€15.09
On Mon 06 Oct
Journey from London St Pancras International to Portsmouth on the fastest train in 2h 5m, usually 2h 20m. Every day, 76 trains leave from London St Pancras International, starting at 00:54 and ending at 23:52. During Off-Peak Times from 09:30 on weekdays, enjoy a quieter and less crowded journey. Get real-time updates on train schedules, delays, and cancellations. Save time, effort, and money with us.
Mon
06 Oct
Tue
07 Oct
Wed
08 Oct
Thu
09 Oct
Fri
10 Oct
Sat
11 Oct
Sun
12 Oct
Departs | Arrives | Status | Duration | Operator | ||
---|---|---|---|---|---|---|
11:20 London St Pancras International | 13:37 Portsmouth & Southsea | On time | 2h 17m | Thameslink | Find tickets | |
11:24 London St Pancras International | 13:44 Portsmouth & Southsea | On time | 2h 20m | South Western Railway | Find tickets | |
11:50 London St Pancras International | 14:17 Portsmouth & Southsea | On time | 2h 27m | Thameslink | Find tickets | |
11:54 London St Pancras International | 13:59 Portsmouth & Southsea | On time | 2h 5m | South Western Railway | Find tickets | |
12:20 London St Pancras International | 14:37 Portsmouth & Southsea | On time | 2h 17m | Thameslink | Find tickets |
Plan your journey from London St Pancras International to Portsmouth 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.
The train journey from London St Pancras International to Portsmouth combines efficiency with pleasure, featuring beautiful scenery and comfort. With frequent departures from London St Pancras International, you can get to Portsmouth in just 2h 5m, making it an ideal and convenient choice for travelling between them.
The fastest train journey time from London St Pancras International to Portsmouth is 2h 5m . 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.
No, there are no direct trains from London St Pancras International to Portsmouth. 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
While London St Pancras International to Portsmouth trains are usually on time, delays or disruptions may occur due to weather, strikes, and other factors. Finding a train timetable for your trip from London St Pancras International to Portsmouth is easy with Train Journey Planner. Simply enter your departure and arrival stations to get a detailed schedule of available trains. Input your travel details to discover the best routes, connections, and train times.
It’s recommended to reach the train station 15-20 minutes before your train is set to leave. This gives you sufficient time to locate your platform, particularly in larger stations. Arriving early is also beneficial if you need to collect tickets or find your way around an unfamiliar station, helping to minimise any potential stress.
k.train.uk.a2b.check.desc6
Transferring between train stations in the UK can be effortless with some planning. If your travel requires a transfer, review your ticket and journey details for specific transfer instructions. Major stations typically feature clear signage and helpful staff. Additionally, TrainPal Train Journey Planner offers comprehensive transfer details.
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.
€20.82
€31.23
Starting a smooth journey can sometimes be challenging, but Trainpal is here to help!
Cheaper train tickets for less busy times. Combine with Advance fares for the best deals.
* 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.
* Save an average of 73% by combining Advance Ticket savings of 73% with an additional 30% through split tickets. These savings apply to Advance fares booked at least one week before travel, excluding Anytime fares purchased on the day of travel. Availability may vary by route and may not be combined with other offers.