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Southampton to Heathrow Terminal 3 Train Route Details

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

Traveling in off-peak train times

Traveling in off-peak train times

We recommend buying train tickets from Southampton to Heathrow Terminal 3 during off-peak hours. These times are usually before 06:30, between 09:30 and 16:00, and after 19:00 on weekdays, as well as all day on weekends and bank holidays. Choosing Off-Peak train tickets means benefiting from cheaper fares and less crowded trains, making your journey more enjoyable.
Get 1/3 off with a Railcard

Get 1/3 off with a Railcard

Railcards offer discounts of up to 1/3 on most tickets. There are various types of Railcards catering to different types of travelers, such as the 16–25 Railcard, the Family & Friends Railcard, and the Senior Railcard. For more information on Railcards and how they can help you save, visit Railcards here.
Split tickets to save an average extra 30%

Split tickets to save an average extra 30%

Splitting tickets is a perfectly legal practice that involves purchasing separate, cheaper tickets for different segments of your journey on the same train instead of a single ticket for the entire trip. For example, if you are travelling from Southampton to Heathrow Terminal 3, you might discover that buying a ticket from A to C, and then another ticket from C to B, is more economical than a direct ticket.
Book in advance to save an average of 61%

Book in advance to save an average of 61%

Did you know that purchasing Advance Tickets can significantly reduce your travel expenses? On average, these tickets can save you an impressive 61% on fares. The best part is that the earlier you book (ideally up to 12 weeks in advance), the greater the savings!
Travel in a group to save 1/3

Travel in a group to save 1/3

If you are traveling in a group, be sure to check out group travel discounts. Many train companies offer a ⅓ off standard fares for groups of three to nine people, making traveling from Southampton to Heathrow Terminal 3 more affordable for families, friends, or colleagues planning a trip together.

Southampton to Heathrow Terminal 3 train ticket types

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

Why Book Train Tickets With Trip.com?

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  • Split Tickets

    Split Tickets

    Save an average of 30% on train fares by splitting your Southampton to Heathrow Terminal 3 journey

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