| Hayward to Orangevale (California) | 86.47 mi (139.16 km) |
| Hayward to Orchards (Washington) | 557.12 mi (896.60 km) |
| Hayward to Orcutt (California) | 212.03 mi (341.23 km) |
| Hayward to Oregon (Ohio) | 2,057.33 mi (3,310.96 km) |
| Hayward to Oregon (Wisconsin) | 1,749.76 mi (2,815.97 km) |
| Hayward to Oregon City (Oregon) | 533.31 mi (858.27 km) |
| Hayward to Orem (Utah) | 586.68 mi (944.17 km) |
| Hayward to Orinda (California) | 18.03 mi (29.01 km) |
| Hayward to Orland Park (Illinois) | 1,829.36 mi (2,944.07 km) |
| Hayward to Orlando (Florida) | 2,422.22 mi (3,898.19 km) |
| Hayward to Ormond Beach (Florida) | 2,410.82 mi (3,879.85 km) |
| Hayward to Oro Valley (Arizona) | 723.20 mi (1,163.88 km) |
| Hayward to Oroville (California) | 131.95 mi (212.35 km) |
| Hayward to Oshkosh (Wisconsin) | 1,793.55 mi (2,886.44 km) |
| Hayward to Oskaloosa (Iowa) | 1,582.65 mi (2,547.02 km) |
