Trains from Southampton to Heathrow Underground from $20.31*

Arriving in Heathrow Underground

With a journey time as short as 2h 18m, you can reach Heathrow Underground from Southampton, with an average of 108 train per day.

Book cheap train tickets from Southampton to Heathrow Underground

Finding cheap train tickets from Southampton to Heathrow Underground doesn't have to be a challenging task. With the right knowledge and by using available discounts and travel options, saving money with Trip.com can become effortless. Here are a few valuable tips to help you save money on your train travel.

Traveling during off-peak hours

Off-Peak train tickets are generally cheaper than peak-time tickets and can be used on services that are less busy, typically outside the morning and evening rush hours. If your schedule allows flexibility, choosing off-peak hours for your trip from Southampton to Heathrow Underground can result in significant cost savings. In most cities and large towns, off-peak hours usually start at 09:30 from Monday to Friday. In other areas, they typically begin at 09:00.

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.

Travel in a group to save 1/3

If you are traveling in a group of three to nine people, you can take advantage of group travel discounts. Many train companies offer GroupSave options that provide a discount of up to 1/3 on off-peak fares. This can make traveling from Southampton to Heathrow Underground more affordable for families, friends, or colleagues planning a trip together.