Route · Great Britain

London Waterloo to Portsmouth Harbour

Trains from London Waterloo to Portsmouth Harbour arrived on average 6 min late over the last 30 days, based on 48 timed arrivals out of 54 services; 54% were within 5 minutes.

Counted from 14 September 2026 to 14 September 2026, as of 14 September 2026. Facts from the rail feeds we archive; nothing on this page is a prediction. How we count.

54%
within 5 min at Portsmouth Harbour, of 48
6 min
late on average
0
cancelled, of 54

Drawn between the two stations, not along the track.

Punctuality

How this route has run

A service counts on this route when London Waterloo is its origin and Portsmouth Harbour its destination; delay is measured on arrival at Portsmouth Harbour. Half of them were within 4 min and four in five were within 9 min. No services were cancelled over the last 30 days. The platform changed after being announced on 0% of 54 calls with a platform. The busiest hour is 17:00–18:00 (4 services); the worst day was Monday 14 September 2026 (6 min late on average).

Punctuality of trains from London Waterloo to Portsmouth Harbour, measured at Portsmouth Harbour. Rates show the sample they are counted from; “—” means no figure. Platform changes are counted over arrivals with a platform.
Measure7 days14 September 2026 – 14 September 202630 days14 September 2026 – 14 September 2026All time14 September 2026 – 14 September 2026
Services545454
Within 5 minutes54% of 4854% of 4854% of 48
Average delay6 min of 486 min of 486 min of 48
Half were within4 min4 min4 min
Four in five were within9 min9 min9 min
Cancelled0 of 540 of 540 of 54
Cancelled at some stops000
Platform changed0% of 540% of 540% of 54
Busiest hour17:00–18:00 (4)17:00–18:00 (4)17:00–18:00 (4)
Worst day14 September 2026 (6 min)14 September 2026 (6 min)14 September 2026 (6 min)

Who runs it