For reference, this is a complete list of bus services in Southampton that we know about.
Bargate - Bus Station
Bargate - Fair Oak Square
Bargate WestQuay - Pear Tree
Vincent's Walk - Romsey Bus Station
Eastleigh Bus Station - Romsey Bus Station
Eastleigh Bus Station - The Balmoral
Station Street - WestQuay
Lyburn Court - Botley Road
WestQuay - St Johns Church
WestQuay - Fawley Square
WestQuay - Calmore Corner
Bearslane Close - WestQuay
Bargate WestQuay - Townhill Way
WestQuay - Baronsmead
Burgoyne Road - Pickles Copse
Romsey Bus Station - Saxon Way
Romsey Bus Station - The Vicarage
The Lamb Inn - Romsey Bus Station
Wyvern School Stop - Eastleigh Bus Station
The Mountbatten School - Library
College Only - Whitefield Road
Woodpecker Drive - College Only
College Only - Rushington Roundabout
Upton Cresent - Barton Peveril College
King Edward Avenue - Barton Peveril College
King Edward School - Barton Peveril College
Barton Peveril College - Colbury Hall
Tesco - Barton Peveril College
The King Charles - Barton Peveril College
Colbury Hall - Barton Peveril College
Water Lane - Barton Peveril College
All Saint's Church - Barton Peveril College
Waltons Avenue - Barton Peveril College
Barton Peveril College - Recreation Ground
Scrag Hill - Brockenhurst College
Cedar Road - Hythe Ferry Yard
Hythe Ferry Yard - Tesco
Red Jet Terminal - Central Station South
St Teresas Church - St Teresas Church
St Teresas Church - St Teresas Church
Leisure World - Eastleigh Bus Station
The Hard Interchange - The Hard Interchange
The Hard Interchange - Allaway Avenue Shops
Kings Theatre - Portsmouth College
The Hard Interchange - Fareham Bus Station
Hamble Square - Pound Tree Road
Blackbird Close - South Parade Pier
City Shops South - Oaklands School Grounds
City Shops South - South Downs College
Cosham Health Centre - The Hard Interchange
Fareham Bus Station - Gosport Bus Station
Gosport Bus Station - Fareham Bus Station
Fort Brockhurst - Fareham Bus Station
Vincent's Walk - Barnfield Road
City Shops South - Portsmouth College
The Ageas Bowl - Parkway Station
Fort Cumberland - The Hard Interchange
Fort Cumberland - The Hard Interchange
Range Green - South Parade Pier
South Parade Pier - Almondsbury Road
Wickham Square - Fareham Bus Station
Stubbington Village - Hill Head Road
Fareham Bus Station - Hill Head Road
Hawthorn Crescent - Sainsburys
Uplands Green - Emsworth Hospital
Tesco - Fareham Bus Station
Tesco - Fareham Bus Station
Vincent's Walk - Richard Taunton College
The Gardens - Havant College
Waterlooville Precinct - The Gardens
Waterlooville Precinct - Great Mead
Hoeford - Gosport Bus Station
Gosport Bus Station - Fareham Bus Station
Thorni Avenue - Fareham Bus Station
Fareham Bus Station - Fareham Bus Station
Fareham Bus Station - Portchester Precinct
Park & Ride Portsmouth - The Hard Interchange
Park & Ride Portsmouth - University
Bishops Waltham Square - South Downs College
Gosport Bus Station - Havant College
South Parade Pier - South Downs College
The Hard Interchange - WestQuay
WestQuay - Gosport Bus Station
Montefiore House - Southampton Uni Interchange
Central Station South - Airport Parkway
Airport Parkway - Central Station South
Eastern Docks - Eastleigh Bus Station
Central Station South - Montefiore House
Mayflower Halls - Chamberlain Halls
Mayflower Halls - Poppy Road
Chamberlain Halls - Mayflower Halls
WestQuay - Cantell School Stop
General Hospital - WestQuay
Eastern Docks - General Hospital
Hillgrove Road - General Hospital and Cemetery
Andover Bus Station - Andover Bus Station
Andover Bus Station - Quicksilver Way
Andover Bus Station - Andover Bus Station
Fluens Industrial Area - Andover Bus Station
Andover Bus Station - Andover Station
St Peters Church - Andover Bus Station
The Boot Inn - The Broadway
Andover Bus Station - Endless Street
Andover Bus Station - Cow Lane
Andover Bus Station - Andover Bus Station
Andover Bus Station - Andover Bus Station
Andover Bus Station - Andover Bus Station
Andover Bus Station - Andover Bus Station
Andover Bus Station - Andover Bus Station
Romsey Bus Station - Pound Tree Road
Stubbington Village - Itchen College
Eastleigh Bus Station - Village Hall
Dollery Close - Dollery Close
Eastleigh Bus Station - Ashdown Shops
Eastleigh Bus Station - Ashdown Shops
Ashdown Shops - Eastleigh Bus Station
Eastleigh Bus Station - Eastleigh Bus Station
Eastleigh Bus Station - Spring Lane
Bishops Waltham Square - Bargate WestQuay
Fraser Close - Pound Tree Road
Pound Tree Road - Shirley Precinct
Hamble Square - Eastleigh Bus Station
Tesco Stores - Bishops Waltham Square