| Chios to Orangevale (California) | 6,723.59 mi (10,820.58 km) |
| Chios to Orchards (Washington) | 6,311.81 mi (10,157.88 km) |
| Chios to Orcutt (California) | 6,942.35 mi (11,172.63 km) |
| Chios to Oregon (Ohio) | 5,355.06 mi (8,618.13 km) |
| Chios to Oregon (Wisconsin) | 5,520.47 mi (8,884.34 km) |
| Chios to Oregon City (Oregon) | 6,334.94 mi (10,195.10 km) |
| Chios to Orem (Utah) | 6,383.62 mi (10,273.44 km) |
| Chios to Orinda (California) | 6,796.07 mi (10,937.22 km) |
| Chios to Orland Park (Illinois) | 5,526.92 mi (8,894.71 km) |
| Chios to Orlando (Florida) | 5,865.38 mi (9,439.41 km) |
| Chios to Ormond Beach (Florida) | 5,817.24 mi (9,361.95 km) |
| Chios to Oro Valley (Arizona) | 6,822.82 mi (10,980.27 km) |
| Chios to Oroville (California) | 6,680.59 mi (10,751.36 km) |
| Chios to Oshkosh (Wisconsin) | 5,438.08 mi (8,751.74 km) |
| Chios to Oskaloosa (Iowa) | 5,718.00 mi (9,202.23 km) |
