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Heathrow Terminal 3 to Southampton train prices and times

Looking to travel from Heathrow Terminal 3 to Southampton? You can buy train tickets with Trip.com for as low as £67.90, with average prices for this route around £85.00.

To get the best deals, we' d recommend buying in advance and researching alternatives such as split tickets.

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Fri, Sep 12
Sat, Sep 13
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Mon, Sep 15
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Heathrow Terminal 3 to Southampton train route details

First train

00:04

Last train

23:32

Departure station

Heathrow Terminal 3

Arrival station

Southampton

Journey time

1h 39m

Distance

58 miles

Price

£67.90*

Train Operators

Heathrow Express, Elizabeth line, CrossCountry

How to book cheap train tickets from Heathrow Terminal 3 to Southampton

Travelling in off-peak train times

Taking advantage of Off-Peak train tickets is another effective way to save on your train journey from Heathrow Terminal 3 to Southampton. These tickets are generally cheaper and can be used during quieter periods, typically outside of morning (06:30-09:30) and evening (16:00-19:00) rush hours on weekdays.

Using the Railcard for 1/3 off

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 catering to specific groups of travellers. You can discover more about Railcards here.

Split Tickets to save an average extra 30%

Another option to consider is splitting your tickets, which can save you around extra 30% on fares. Instead of purchasing a direct ticket from Heathrow Terminal 3 to Southampton, you can split the route into two legs: A to C and C to B. This often turns out to be more affordable than buying a direct ticket, and you won’t even need to leave the train… or often your seat!.

Book in advance to save an average of 61%

Advance Tickets are typically released up to 12 weeks before the travel date and can offer significant savings compared to tickets purchased closer to departure. By planning your trip from Heathrow Terminal 3 to Southampton ahead of time and booking your tickets early, you can potentially save up to 61% on your travel expenses.

Group travels to save 1/3

If you are planning a trip with a group of three to nine people, take advantage of ⅓ off standard fares with group travel discounts, offered by many train companies, perfect for journeys with your family, friends, or colleagues.

Heathrow Terminal 3 to Southampton train ticket types

Save money on your trip from Heathrow Terminal 3 to Southampton with suitable train tickets. It's a great way to spend less!

Off-Peak & Super Off-Peak train tickets
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Off-peak tickets are cheaper and offer more flexibility for travel during less busy times. Super Off-Peak tickets are even cheaper and suitable for unconventional schedules.
Return train tickets
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These are valid for both the outward and return journey from the same destination on your chosen route.
Advance train tickets
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Generally the most cost-effective option, these tickets can be purchased up to 12 weeks in advance of the travel date.
Season train tickets
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It’s a type of train ticket that allows unlimited travel within two stations for a week, a month, or a year. What’s more, it can save you more than 1/3 on train fares.

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Why Book Train Tickets With Trip.com?

Best Price Promise
If you find trains for a cheaper price elsewhere, let us know and we'll refund the difference*
Split Tickets
Save an average of 30% on train fares by splitting your Heathrow Terminal 3 to Southampton journey
National Rail Partners
Official train ticket sellers with 5-star customer service
No Booking Fees on the App
Only pay for your train travel – no hidden fees

*After comparing the full year of 2023 for Split tickets and full-price tickets on Trip.com, the average savings rate for Split tickets is 30%.

Trains from Heathrow Terminal 3 to Southampton from £67.90

Save an average of 30%* with Split Tickets

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Heathrow Terminal 3 to Southampton train prices and times

Heathrow Terminal 3 to Southampton train route details