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