Engineering work is taking place between St Denys and Cosham, closing all lines.
Buses will replace trains between Southampton Central and Portsmouth Harbour, calling at Fareham, Cosham, Fratton and Portsmouth & Southsea.
Saturday:
Trains between London Waterloo and Portsmouth Harbour via Eastleigh will terminate at Eastleigh.
Trains between Southampton Central to Portsmouth Harbour stopping services will not run.
Sunday:
The morning and afternoon London Waterloo to Poole / Portsmouth Harbour via Eastleigh services will continue to Poole only.
The afternoon and evening London Waterloo to Portsmouth Harbour via Eastleigh services will terminate at Eastleigh.
Southampton Central to Portsmouth stopping services will not run.
All weekend a replacement bus service will run between:
Buses will replace Southern trains between Southampton Central and Havant.
Trains which usually run between Southampton Central and Brighton will be diverted to run to / from Portsmouth & Southsea, calling additionally at Fratton.
Journey times will be increased when using replacement buses.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner.
Replacement bus travel advice:
For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page.
You can find the pick-up and drop-off location of rail replacement services by checking station signage or by searching for your station on our Find a Station page.
Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.