The number of patients on the waiting list for elective treatment reached 4.4 million at the end of July, the latest NHS figures show.
The waiting list has risen by 4.6% compared with a year ago.
Of these patients, one in seven had been waiting longer than 18 weeks.
The data shows 85.8% if patients had been waiting less than 18 weeks, meaning the NHS did not meet the 92% standard. This compares with 87.8% at the end of July 2018.
In addition, 90.9% of patients were seen by a specialist within two weeks of an urgent GP referral for suspected cancer. This compares with 91.9% at the end of July 2018 and is below the 93% standard.
Professor John Appleby, chief economist at the Nuffield Trust, said the figures confirm that this year has seen an alarming slump in NHS performance against important targets.
“People mustn’t get distracted by incoming new targets from the fact that NHS performance this year has seen a sharp decline,” he stated. “Changing measurements won’t make a difference if things keep on worsening at this rate.”
Nikki Cannon, specialist adviser for workforce engagement at Macmillan Cancer Support, warned that depression, anxiety, sleepless nights and stress are just some of the ways long waits can impact patients and their loved ones.
“It’s clear from speaking regularly to Macmillan professionals that plans to reduce cancer waiting times next year are pie in the sky thinking without a funded plan to grow and sustain the health and care workforce,” she said.