Kirkby and nearby areas are served by high frequency bus services along several routes to Liverpool, plus other services to Bootle, Halewood, Huyton, Old Swan, Ormskirk, Prescot and St. Helens, as well as school services to secondary schools in Maghull
Information can be bound about services from the Public Transport Executive Merseytravel and from the following bus service operators:
The following information on this page has been collated to help people discover available routes and further information, and should not be used for route planning. Please consult the Merseytravel of bus operator website for up-to-date information.
The following map was last updated on 01/02/2021 to illustrate the routes available. Please see the list of links to timetable information below for detailed up-to-date information.
| Route | Description | Merseytravel | Operator |
| 14 | Towerhill or Kirkby Bus Station to Liverpool (Mann Island) | Link | Arriva (web) Stagecoach (PDF) |
| 14A | Towerhill to Liverpool (Mann Island) – early mornings only | Link | Stagecoach (PDF) |
| 14B | Knowsley Village to Liverpool (Mann Island) | Link | Stagecoach (PDF) |
| 14C | Towerhill to Liverpool (Mann Island) | Link | Stagecoach (PDF) |
| 14X | Liverpool (Mann Island) to Kirkby Industrial Estate (one-way) | Link | Arriva (web) |
| 17 | Kirkby or Aintree University Hospital to/from Lord Street or Queen Square Bus Station | Link | Stagecoach (PDF) |
| 19 | Kirkby to/from Lord Street or Queen Square Bus Station | Link | Stagecoach (PDF) |
| 20 | Towerhill or Kirkby Admin to/from Lord Street or Queen Square Bus Station | Link | Arriva (web) Stagecoach (PDF) |
| 20X | Kirkby Admin to Paradise Street | Link | Stagecoach (PDF) |
| 21 | Northwood to/from Queen Square Bus Station | Link | Stagecoach (PDF) |
| 36 | Fazakerley to/from Maghull via Waddicar | Link | Merseytravel |
| 97 | Kirkby Circular (Bus Station, Kirkby Admin, Southdene) | Link | Stagecoach (PDF) |
| 97A | Kirkby Circular (Bus Station, Kirkby Industrial Estate, Southdene) | Link | Stagecoach (PDF) |
| 98 | Kirkby Circular (Bus Station, Train Station, Westvale, Southdene) | Link | Stagecoach (PDF) |
| 98A | Kirkby Circular (Bus Station, Train Station, Southdene, Industrial Estate) | Link | Stagecoach (PDF) |
| 133 | Kirkby Bus Station to/from Waterloo Interchange | Link | Huyton Travel |
| 217 217A | Bootle Bus Station or Kirkby to/from Huyton or Halewood Shopping Centre | Link | Stagecoach (PDF) |
| 227 | Bootle Bus Station or Kirkby to/from Huyton or Halewood Shopping Centre | Link | Stagecoach (PDF) |
| 289 | Kirkby or Prescot to/from St Helens Bus Station | Link | Cumfybus |
| 297 | Kirkby Bus Station to/from St Helens Bus Station | Link | Hattons Travel |
| 345 | Waddicar to Queen Square Bus Station | Link | Arriva |
| 722 | Tower Hill to Maricourt & Deyes High School | Deyes High School Maricourt High School | Peoplesbus |
| 725 | Prescot Road Melling Mount to Maricourt High School Via Maghull High School & Deyes High School | Deyes High School Maghull High School Maricourt High School | Peoplesbus |
| 727 | Waddicar Lane to Maghull High School | Maghull High School | Peoplesbus |
| 728 | Maghull High School to Waddicar Church | Maghull High School | Peoplesbus |
| 732 | Maricourt High School to Kirkby Park | Maricourt High School | Peoplesbus |
| 739 | Melling Mount to Maghull High School | Maghull High School | Peoplesbus |
| 827 | Old Swan to Kirkby Admin | Link | Cumfybus |
| 897 | Kirkby Admin to/from Huyton Industrial Estate | Link | Huyton Travel |
| 898 | Kirkby Industrial Estate Circular to/from Page Moss | Link | Huyton Travel |
| 899 | Kirkby Industrial Estate or Knowsley Village Circular to/from Page Moss | Link | Huyton Travel |
| X3 | Kirkby Admin to/from Queen Square Bus Station | Link | Stagecoach (PDF) |