Rail routes will be given a shake-up from December 9 with the new timetable.
Main changes for Bedfordshire commuters will include the 7.33am Bedford to Sutton service being diverted to Brighton, calling at London Blackfriars, East Croydon, Gatwick Airport, Three Bridges, Haywards Heath and Brighton.
The 7.44am Bedford to Elephant & Castle train will be extended to Sutton via Wimbledon, calling at London Blackfriars, Herne Hill and all stations to Sutton via Wimbledon. This service will no longer call at Elephant & Castle.
The 5.40pm London St Pancras International to Three Bridges service will start from Bedford at 4.40pm and call additionally at Flitwick, Luton, Luton Airport Parkway, Harpenden and St Albans.
On Saturdays, the 7.07pm, 7.37pm, 8.07pm and 8.37 Brighton to Bedford services will call additionally at West Hampstead Thameslink, and the 5.54pm 5.54pm, 6.24pm and 6.54pm Bedford to Brighton services will also call additionally at West Hampstead Thameslink.
New timetable books will be delivered to stations early next month.
First Capital Connect MD Neal Lawson said: “With every timetable change we aim to make adjustments to give customers a better service.
“The end of sustained closures across central London for Thameslink Programme engineering work has allowed us to deliver these improvements.”
