A&E at West Middlesex University Hospital

How long an A&E visit takes

Within 4 hours

62%

admitted, transferred or sent home within 4 hours of arriving

1 percentage point higher than England (61%)

Over 12 hours

5%

spent more than 12 hours in A&E from arriving

5 percentage points lower than England (10%)

Over 4 hours

2,990

attendances that took longer than 4 hours

Attendances in September 2026

7,945

The time runs from arriving at A&E until the patient is admitted to a ward, transferred or sent home, so waiting for tests and for a bed is part of it. This is a fact about the A&E department, not a grade or a verdict. Departments see different patients: one that admits more people, or takes the most seriously ill, will often have longer times.

NHS England publishes the latest month (September 2026) as provisional and may revise it next month.

Source: NHS England, A&E Attendances and Emergency Admissions, Emergency Care Data Set (ECDS) tables, October 2025 to September 2026 (published 8 October 2026). Open Government Licence. NHS England publishes the hospital figures as experimental statistics, as received from hospitals, with counts rounded to the nearest 5.

Who stays longest?

The time is not only queueing: tests, treatment and waiting for a bed are part of it.

• Admitted to a ward: 33% within 4 hours, against 72% of people who went home or elsewhere. Waiting for a bed is part of the time.
• Children under 16: 80% of 1,440 attendances within 4 hours.
• With a mental health complaint: 20 of 160 attendances lasted more than 24 hours.

Month by month

The share seen within 4 hours, month by month over the last year. The scale runs from 0 to 100%.

The trust as a whole

Chelsea and Westminster Hospital NHS Foundation Trust as a whole: 78% of all its A&E attendances within 4 hours in September 2026, counting every type of A&E it runs, urgent treatment centres included. England: 74%.

The figures are for type 1 and 2 departments: major emergency departments open 24 hours, and specialist ones such as eye hospitals. Urgent treatment centres, minor injury units and walk-in centres are not included. The trust’s own figure counts every type.

• Chelsea and Westminster Hospital NHS Foundation Trust

More A&E departments in West and North London

The share seen within 4 hours at each one in September 2026.

• Barnet Hospital – 78%
• Charing Cross Hospital – 53%
• Chelsea and Westminster Hospital – 66%
• Ealing Hospital – 52%
• Hillingdon Hospital – 58%
• Moorfields Eye Hospital (City Road Campus) – 92%
• North Middlesex Hospital – 61%
• Northwick Park Hospital – 51%
• Royal Free Hospital – 74%
• St Mary's Hospital – 61%
• University College Hospital – 72%
• Western Eye Hospital – 94%
• Whittington Hospital – 70%

In alphabetical order, not a ranking.