Skip to Buy Tickets Skip to Content Skip to Footer

Train service punctuality and reliability

For information on how the train service is performing – check below for yesterday’s service

On time punctuality 

We publish a measure of train punctuality as part of national plans to improve train service performance, reduce delays and increase transparency with ‘to the minute’ punctuality data. It is known as 'On time' and records punctuality at each station along a journey. We have been reporting data in this format since April 2019.

The current data known as the public performance measure (PPM) considers a train to be on time if it arrives within 5 minutes of its scheduled arrival time (or 10 minutes for long distance operators).

The daily report

Every day we publish our performance statistics for the previous day. We report two figures: 

  • PPM – the percentage of trains arriving at their destination within 5 minutes of schedule
  • On time – the percentage of trains arriving at the scheduled time at each station stop on a journey 

Monday 9th December 2024

Route PPM On Time
Thameslink 50.1% 43.4%
Southern Mainline 65.7% 50.7%
Southern Coastway 80.6% 64.5%
Southern Metro 90.8% 78.2%
Gatwick Express 50.0% 44.3%
Great Northern 64.8% 55.5%
Total 66.3% 56.2%