Train Portsmouth to London: Trip Overview
Please note, this information is subject to change.
Train Companies
Portsmouth to London Train
With Busbud, comparing and booking tickets for a train from Portsmouth to London is a breeze. Browse through an extensive selection of train fares and train schedules to find the best deals.
We make sure you can find a train service from Portsmouth to London from the most reliable train companies operating this trip.
Whether it is train tickets or first class train tickets going to London from Portsmouth, we help you find what you're looking for based on how much of a budget you have.
Frequently asked questions for your trip Portsmouth - London
Find cheapest prices for trains
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Portsmouth to London was searched and found on Apr 23, 2025 with a price of $21To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Portsmouth to London, as early as possible.
About Train Travel
Train Travel Tips
Taking the fastest trains allows you to travel at speeds greater than 300 km/h. Taking a trip from Portsmouth to London is not only much quicker but more comfortable too! You can usually travel directly to the city centre and save time while you're at it.
Regional train? High-speed train? Whichever train to London you take, you’ll help reduce the environmental impact and carbon footprint of your trip. As you watch the landscapes unfold before your eyes, you can tell yourself that with this choice, you are making sure they remain protected.
By choosing the train between Portsmouth and London, you emit up to 30 times less CO2 than for the same journey made by plane or car!
Make a music playlist for your train ride from Portsmouth to London, and enjoy the scenery to tunes from your own personal soundtrack.
Did you know?
Railway companies played a major role as early as 1883 in the use of time zones as we know them today.
The longest train journey in the world is between Europe and Asia. This long journey starts from Porto in Portugal and crosses the whole European continent to reach Hanoi in Vietnam in 12 days while traveling more than 17,000 km.
The first high-speed train line was inaugurated in 1964, in Japan, to connect Tokyo with Osaka. It was during the Olympics that the first passengers traveled aboard the Shinkansen at a speed of 210 km / h.
Top Traveled Train Routes
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Popular Trains Connecting Portsmouth
Trains Leaving from Portsmouth
Popular Trains Connecting London
Trains Going to London
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