- Oakhurst to Quest Chatswood
- Oakville to Quest Chatswood
- Oatlands to Quest Chatswood
- Oatley to Quest Chatswood
- Old Guildford to Quest Chatswood
- Old Toongabbie to Quest Chatswood
- Oran Park to Quest Chatswood
- Orchard Hills to Quest Chatswood
- Oxford Falls to Quest Chatswood
- Oxley Park to Quest Chatswood
- Oyster Bay to Quest Chatswood
- Sydney Airport to Quest Chatswood
- Quest Chatswood to Oakhurst
- Quest Chatswood to Oakville
- Quest Chatswood to Oatlands
- Quest Chatswood to Oatley
- Quest Chatswood to Old Guildford
- Quest Chatswood to Old Toongabbie
- Quest Chatswood to Oran Park
- Quest Chatswood to Orchard Hills
- Quest Chatswood to Oxford Falls
- Quest Chatswood to Oxley Park
- Quest Chatswood to Oyster Bay
- Quest Chatswood to Sydney Airport