- Oakhurst to Grand Mercure The Hills Lodge
- Oakville to Grand Mercure The Hills Lodge
- Oatlands to Grand Mercure The Hills Lodge
- Oatley to Grand Mercure The Hills Lodge
- Old Guildford to Grand Mercure The Hills Lodge
- Old Toongabbie to Grand Mercure The Hills Lodge
- Oran Park to Grand Mercure The Hills Lodge
- Orchard Hills to Grand Mercure The Hills Lodge
- Oxford Falls to Grand Mercure The Hills Lodge
- Oxley Park to Grand Mercure The Hills Lodge
- Oyster Bay to Grand Mercure The Hills Lodge
- Sydney Airport to Grand Mercure The Hills Lodge
- Grand Mercure The Hills Lodge to Oakhurst
- Grand Mercure The Hills Lodge to Oakville
- Grand Mercure The Hills Lodge to Oatlands
- Grand Mercure The Hills Lodge to Oatley
- Grand Mercure The Hills Lodge to Old Guildford
- Grand Mercure The Hills Lodge to Old Toongabbie
- Grand Mercure The Hills Lodge to Oran Park
- Grand Mercure The Hills Lodge to Orchard Hills
- Grand Mercure The Hills Lodge to Oxford Falls
- Grand Mercure The Hills Lodge to Oxley Park
- Grand Mercure The Hills Lodge to Oyster Bay
- Grand Mercure The Hills Lodge to Sydney Airport