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Heathrow Airport to Southampton by train

It takes an average of 2h 25m to travel from Heathrow Airport to Southampton by train, over a distance of around 56 miles (91 km). There are normally 176 trains per day traveling from Heathrow Airport to Southampton and tickets for this journey start from $50.17 when you book in advance.

First train

Invalid Date

Last train

Invalid Date

Departure station

Heathrow Airport

Arrival station

Southampton

Journey time

From 1h 39m

Distance

56 miles (91 km)

Frequency

176 trains per day

Changes

2 changes

Price

From $50.17

Train operators

CrossCountry, Great Western Railway, South Western Railway, Thameslink, Heathrow Express, Southern

Travel by train from Heathrow Airport to Southampton

Just landed in the UK and need more information on how to travel from Heathrow to Southampton by train? You’ve come to the right place! 

On average, the journey by train from Heathrow Airport to Southampton takes around 2 hours and 18 minutes, although the fastest services can take you there in just 1 hour and 36 minutes. As there are no direct services available on this route, you will need to make at least one change during your journey.   

When traveling from Heathrow Airport to Southampton, there are a few routes to choose from. To get there quickly, we’d recommend taking the Elizabeth Line from Heathrow Airport station to Hayes & Harlington station. From here, you can take the Elizabeth line again to Reading station. Finally, you can take a CrossCountry service to Southampton Central station.  

From the station, you’re a short walk from the city centre. Here, you’ll find the city’s most popular sights, including the SeaCity Museum and the Southampton City Art Gallery. From Southampton, you can also reach some of the country’s most beautiful national parks, including the New Forest and the South Downs.  

If you’d like to book cheaper train fares, try traveling at Off-Peak times, as tickets are usually cheaper outside of morning/evening rush hours between Monday and Friday. Also, keep an eye out for Advance tickets, they are normally released 12 weeks prior to the departure date and tend to be a lot cheaper.  

Want to book? Start a search for cheap train tickets from Heathrow Airport to Southampton in our Journey Planner at the top of the page. If you want to know more about the journey, keep reading for train timetables, tips on finding cheap tickets and FAQs including first and last train times.  

FAQs for Heathrow Airport to Southampton

Want to know more about your journey from Heathrow Airport to Southampton? We've compiled some of the most frequently asked questions by our customers to help you plan your journey.

How long does the train from Heathrow Airport to Southampton take?

The average journey time by train between Heathrow Airport and Southampton is 2 hours and 25 minutes, with around 176 trains per day. The journey time may be longer on weekends and holidays, so use our Journey Planner on this page to search for a specific travel date.

What's the fastest journey time between Heathrow Airport and Southampton by train?

The fastest journey time by train from Heathrow Airport to Southampton is 1 hour and 39 minutes.

How much does the train from Heathrow Airport to Southampton cost?

Train tickets from Heathrow Airport to Southampton can start from as little as $50.17 when you book in advance and are usually more expensive when purchased on the day. Prices can also vary depending the time of day, route and class you book.

Is there a direct train from Heathrow Airport to Southampton?

No, there are no direct train services from Heathrow Airport to Southampton. Travelling from Heathrow Airport to Southampton by train will require a minimum of 2 changes.

What time does the first train from Heathrow Airport to Southampton leave?

The first train from Heathrow Airport to Southampton leaves at 04:15. Times and services may vary during weekends and holidays.

What time does the last train from Heathrow Airport to Southampton leave?

The last train from Heathrow Airport to Southampton leaves at 23:17. Trains that depart in the early morning hours or very late evening may be sleeper services, time and services may also vary during weekends and holidays.

What's the distance between Heathrow Airport and Southampton by train?

Trains travelling from Heathrow Airport to Southampton cover a distance of around 56 miles (91 km) during the journey.

Looking for more information?

If you’re looking for the return train journey, check out trains from Southampton to Heathrow Airport.

Cheap train tickets from Heathrow Airport to Southampton

Train tickets from Heathrow Airport to Southampton start at $50.17 one way for a Standard Class ticket if you book in advance. As most UK train companies increase their prices as the departure date approaches, we’ll help you find the cheapest tickets.

Book in advance

Look out for Advance tickets – they usually come out up to 12 weeks before the departure date and can be cheaper than buying on the day. If you’re here a tad early, sign up for our Advance ticket alert today to get notified when your tickets are released.

Consider a Season Ticket

If you catch this train more than 3 times per week, you could save money with a Season Ticket. With annual, monthly and weekly options available, find out if a season ticket for Heathrow Airport to Southampton is right for you.

Use your Railcard

National Railcards offer a 1/3 off eligible train tickets in the UK and can be a great investment if you travel a few times or more in a year. Find out how you can save with a National Railcard here.

Split your tickets

Download our app to find split tickets — courtesy of SplitSave, our handy feature which 'splits' your train tickets where possible to find you a better deal. Learn more about the clever tech behind split tickets, and how to spot SplitSave discounts in our app.

For more money-saving tips on UK and European train travel, read our cheap train tickets guide.

Advance adult single fare. Excludes booking fee. Prices seen by Trainline customers in the last 30 days. Availability limited.

What are my ticket options for this journey?

If you're like us, you've probably seen the sheer number of ticket types available in the UK and wondered "Why are there so many?!" To help, we've put together a handy guide to the main UK ticket types, simply tap the one you’re interested in to find out more.

* Based on European average monthly visitors to Trainline’s app and website from 1.1.2023 to 10.31.2023 vs other independent retailers.

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