Trains from Heathrow Terminal 4 to Portsmouth Harbour from $18.63*

Arriving in Portsmouth Harbour

Every day, up to 92 train depart from Heathrow Terminal 4 and arrive in Portsmouth Harbour, with the shortest journey taking 2h 58m minutes.

Book cheap train tickets from Heathrow Terminal 4 to Portsmouth Harbour

It doesn’t need to be difficult to find cheap train tickets from Heathrow Terminal 4 to Portsmouth Harbour. If you know where to look and how to take advantage of available discounts and travel options, then saving money with Trip.com becomes second nature. Here are some of our top tips to help you save money on your train travel.

Split Tickets to save an average extra 30%

Splitting your tickets involves buying separate tickets for different parts of your journey instead of one ticket for the entire trip. This method can often be cheaper and is perfectly legal. For instance, if you're traveling from A to B, you might find that purchasing a ticket from A to C, then C to B costs less than a direct ticket.

Travel in a group to save 1/3

If you are planning a trip with a group of three to nine people, there's good news for you! You can take advantage of group travel discounts that are offered by many train companies. These discounts can save you up to 1/3 on off-peak fares, making your journey from Heathrow Terminal 4 to Portsmouth Harbour more affordable. Whether you're traveling with your family, friends, or colleagues, the group save options make it easier for everyone to enjoy the benefits of discounted fares while embarking on a memorable trip together.

Get 1/3 off with a Railcard

With a Railcard, you can save up to 1/3 on most rail fares. There are different types of Railcards available, such as the 16–25 Railcard, the Family & Friends Railcard, and the Senior Railcard, each designed to cater to specific groups of travelers. You can discover more about Railcards here.