| Discovery Bay to Orangevale (California) | 57.78 mi (92.98 km) |
| Discovery Bay to Orchards (Washington) | 539.86 mi (868.82 km) |
| Discovery Bay to Orcutt (California) | 219.82 mi (353.76 km) |
| Discovery Bay to Oregon (Ohio) | 2,026.39 mi (3,261.17 km) |
| Discovery Bay to Oregon (Wisconsin) | 1,718.48 mi (2,765.62 km) |
| Discovery Bay to Oregon City (Oregon) | 516.29 mi (830.88 km) |
| Discovery Bay to Orem (Utah) | 555.57 mi (894.10 km) |
| Discovery Bay to Orinda (California) | 31.67 mi (50.97 km) |
| Discovery Bay to Orland Park (Illinois) | 1,798.52 mi (2,894.43 km) |
| Discovery Bay to Orlando (Florida) | 2,397.25 mi (3,858.00 km) |
| Discovery Bay to Ormond Beach (Florida) | 2,385.35 mi (3,838.85 km) |
| Discovery Bay to Oro Valley (Arizona) | 708.95 mi (1,140.95 km) |
| Discovery Bay to Oroville (California) | 110.12 mi (177.23 km) |
| Discovery Bay to Oshkosh (Wisconsin) | 1,761.96 mi (2,835.60 km) |
| Discovery Bay to Oskaloosa (Iowa) | 1,551.98 mi (2,497.67 km) |
