Harpenden to London St. Pancras International Trains From £4.80*

ThamesLink makes travelling from Harpenden to London St Pancras International a fast, simple and very easy journey to make in less than half an hour. The fastest trains take just 26 minutes, with slower services only stretching the journey to around 37 minutes. Covering the 22 miles directly with no changes needed, it’s a simple, stress-free way to get into the capital.

On the way, you’ll leave behind the leafy suburbs of Hertfordshire and roll smoothly into London, catching glimpses of neighbourhoods that edge closer and closer to the city centre. The trains are comfortable and well-equipped, making the short trip an easy part of your day.

As the sole operator of this route, ThamesLink runs frequent services throughout the day, so you’ll never have long to wait. Whether you’re commuting, meeting friends, or travelling onwards from London, it’s a dependable link between Harpenden and the heart of the capital.

Departing from Harpenden

Conveniently located in the Hertfordshire town of Harpenden, just north of London, you’ll find Harpenden Station. The station sits on Station Road, close to the town centre and is easily accessible by local buses, taxis and on foot. There are also parking facilities if you plan to drive.

Harpenden Station is on the Midland Main Line, with frequent ThamesLink services running directly into London St Pancras International in under 30 minutes. It’s a route commonly used by commuters, but also people heading into London simply for a day trip and to enjoy the incredible city that is London. You can also catch trains to Luton and Bedford from Harpenden.

The station is primarily served by ThamesLink, which operates regular, fast and reliable services throughout the day. Whether you’re heading into London for work, leisure or onward travel, Harpenden offers a smooth start to your journey.

Main stops

When you travel on the fastest ThamesLink service from Harpenden to London St Pancras International, you’ll stop at St Albans City between the two. If you get one of ThamesLink’s slightly longer services, you’ll also stop at Radlett, Elstree & Borehamwood, Mill Hill Broadway, Brent Cross West and West Hampstead ThamesLink.

Arriving at London St Pancras International

Your ThamesLink journey from Harpenden will bring you right into the heart of London, arriving at London St Pancras International. Located in the King’s Cross area of central London, the station is easy to reach on foot, by bus, or by London Underground, with multiple Tube lines linking you quickly to the rest of the city.

London St Pancras International is not just a gateway to and from London, but also a hub for national and international travel. As well as ThamesLink services from across the East Midlands and the South East, the station also has trains to Kent, the Midlands and Eurostar trains to Paris and Brussels.

With such a central location, it’ll come as no surprise that London St Pancras International is close to many of the city’s top landmarks and attractions. Right next door is King’s Cross Station - home to the famous Platform 9¾ for Harry Potter fans - and The British Library is just a short walk away. You can also easily access the shops, bars and restaurants of Coal Drops Yard and Granary Square, giving you the perfect place to unwind after your journey.

ThamesLink train classes

• Standard Class: Travelling from Harpenden to London in Standard Class with ThamesLink offers the perfect balance of comfort and value. Trains are equipped with free wifi, plug sockets and tables, so you can fully relax during your journey. With Standard Class, you won’t struggle to buy cheap train tickets, which are even cheaper if you have a valid railcard. You can reduce the cost of your Harpenden to London St Pancras International fare by up to a third, making Standard Class an affordable choice for commuters and leisure travellers alike.
• First Class: If you’re looking to add a touch of luxury to your Harpenden to London trip, consider booking into one of ThamesLink’s First Class carriages. Harpenden to London St Pancras International First Class provides wider seats, a quieter carriage and, on selected trains, complimentary refreshments. While First Class comes at a higher price, railcards can reduce the cost significantly, as can booking in advance.

ThamesLink train travel advice

We’ve taken a look at the ins and outs of travelling between Harpenden and London with ThamesLink. Here’s everything you need to know: 

• Luggage - ThamesLink trains have areas for suitcases and larger bags, but space can be limited during busy commuter times, so it’s best to travel light if you can.
• Bicycles - Folding bikes are always welcome on ThamesLink services, but full-sized bikes that don’t fold may be restricted on peak services. It’s best to check before you travel if you’re planning to bring a bike on a service going to London.
• Children - Children travel for free with ThamesLink if they’re under 5, and children aged between 5 and 15 benefit from discounted fares. You can save even more if you have a railcard.
• Pets - Up to two small pets per passenger can travel free of charge on ThamesLink trains. Dogs should be on a lead, smaller pets must be in a carrier and pets aren’t allowed on seats.
• Passenger Assist - ThamesLink provides support for anyone needing extra help with their journey. Assistance can be booked in advance or requested on the day.