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Trains from Heathrow Airport to London St Pancras International

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Heathrow Airport to London St Pancras International by train

It takes an average of 50m to travel from Heathrow Airport to London St Pancras International by train, over a distance of around 15 miles (24 km). There are normally 226 trains per day traveling from Heathrow Airport to London St Pancras International and tickets for this journey start from $16.18 when you book in advance.

First train

4:15 am

Last train

11:47 pm

Departure station

Heathrow Airport

Arrival station

London St Pancras International

Journey time

From 47m

Distance

15 miles (24 km)

Frequency

226 trains per day

Changes

1 change

Price

From $16.18

Train operators

Thameslink, Heathrow Express

How to travel by train from Heathrow Airport to London St Pancras International

Just landed in the UK and need to travel from Heathrow Airport to London St Pancras International by train? Start your journey with us!  

On average, it takes around 1 hour and 4 minutes to travel from Heathrow to St Pancras by train, although the fastest services will take you there in just 47 minutes. As there are no direct trains available, you will need to make at least 1 change along the way.  

When traveling on this route, you’ll take a Heathrow Express train from Heathrow Airport to London Paddington station. On board, you’ll enjoy amenities such as comfortable seating and free WiFi. Fancy treating yourself? Upgrade to Heathrow Express First Class for comfortable spacious seating, extra legroom, power sockets and a personal table. From London Paddington Station, you can take the London Underground to London St Pancras International station via the Circle or Hammersmith & City line. 

London St Pancras International is one of London’s most well-connected stations, with trains waiting to take you to some of the most popular cities in Europe, including Paris, Amsterdam and Brussels. You can travel some of the best cities in the UK from here too, such as Brighton, Cambridge or Sheffield.   

If you want to save money on your train tickets, try traveling during Off-Peak times, outside of morning/evening rush hours between Monday and Friday. To save even more, try booking an Advance ticket – they tend to be released 12 weeks before the departure date and are usually cheaper than purchasing tickets on the day of travel.  

Ready to book? Start a search for cheap train tickets from Heathrow Airport to London St Pancras International today. There’s no need to wait, just head to our Journey Planner at the top of the page to get started. For more information, continue reading for FAQs, timetables with first and last train times, as well as tips on booking cheap train tickets. 

FAQs about the train journey from Heathrow Airport to London St Pancras International

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

How do I travel from Heathrow Airport to London St Pancras International?

You can get from Heathrow Airport to London St Pancras International in 50 minutes on average, with the fastest trains taking just 47 minutes. Check out our Journey Planner for more details on times, tickets and prices.

How long does the train from Heathrow Airport to London St Pancras International take?

The average journey time by train between Heathrow Airport and London St Pancras International is 50 minutes, with around 226 trains per day running on this route. 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.

How much does the train from Heathrow Airport to London St Pancras International cost?

Train tickets from Heathrow Airport to London St Pancras International can start from as little as $16.18 when you book in advance and are usually more expensive when purchased on the day. Prices can also vary depending on the time of day, route and class you book.

What's the fastest journey time between Heathrow Airport and London St Pancras International by train?

The fastest journey time by train from Heathrow Airport to London St Pancras International is 47 minutes.

Cheap train tickets from Heathrow Airport to London St Pancras International

Train tickets from Heathrow Airport to London St Pancras International start at $16.18‡ 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 London St Pancras International 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.

Advance train tickets

Single tickets released ahead of time for a specific time and date. Generally, the sooner you book, the cheaper these tickets are likely to be.

Anytime train tickets

Flexible tickets that allow you to travel at any time of the day. Perfect if you have to be somewhere but aren’t sure for how long.

First Class train tickets

Fancy traveling in style? Enjoy perks like more spacious seating, complimentary refreshments and lounge access with First Class train tickets.

GroupSave train tickets

Save up to 34% when traveling with a group of 3 to 9 people on eligible single or return journeys at Off-Peak or Super Off-Peak times.

Off-Peak and Super Off-Peak train tickets

Available at quieter times of the day, Off-Peak tickets offer the flexibility of traveling at any time during the Off-Peak window and discounted fares.

Return train tickets

Return tickets combine your outward and return journey into a single ticket. Choose from a Day or Open Return ticket for more flexibility on travel dates.

Family train tickets

Traveling with your family? There are plenty of family offers to help you save money, including Kids for a Quid tickets for children aged 5-15 and Off-Peak Family Travelcards.

Take the train from Heathrow Airport to London St Pancras International

If you're flying into Europe, why not take the train from Heathrow Airport to London St Pancras International? Unlike a taxi transfer, there’s no traffic to worry about. And you’ll know the price in advance too. With Trainline, you can book your train tickets ahead of time, so you’re ready to go as soon as you touch down.

Plus, taking the train means no more waiting around at the airport trying to sort out your transfer. It’s super convenient – there's a train station at Heathrow Airport so traveling direct to London St Pancras International is simple! There are around 213 trains per day, so it's quick and easy to take the train.

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* 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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