Trains from London St Pancras International to Heathrow Airport from $20.59*

Arriving in Heathrow Airport

With a journey time as short as 39m, you can reach Heathrow Airport from London St Pancras International, with an average of 90 train per day.

Book cheap train tickets from London St Pancras International to Heathrow Airport

It doesn’t need to be difficult to find cheap train tickets from London St Pancras International to Heathrow Airport. If you know where to look and how to take advantage of available discounts and travel options, then saving money with Trip.com becomes second nature. Here are some of our top tips to help you save money on your train travel.

Network Railcard for South East England

By purchasing a Network Railcard for an affordable price per year, you can unlock incredible savings of up to 33.4% on every ticket for your travels in London and the South East. With this Railcard in hand, you'll be able to enjoy reduced costs on various ticket types, including Standard or Super-Off Peak train tickets. It's a fantastic opportunity to make your journeys more affordable and convenient.

Traveling during off-peak hours

The important thing to note about Off-Peak train tickets is the designated off-peak time. In large cities and towns, the off-peak time for train travel from London St Pancras International to Heathrow Airport usually starts at 9:30 am from Monday to Friday, while in other areas it starts at 9:00 am. By planning your journey during these off-peak hours, you can take advantage of cheaper and more comfortable train fares, ensuring a smoother travel experience and avoiding the crowded peak hours.

Get 1/3 off with a Railcard

Railcards offer discounts of up to 1/3 on most tickets. There are various types of Railcards available to cater to different groups 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.