| Chios to Oakley (California) | 6,778.00 mi (10,908.13 km) |
| Chios to Oakton (Virginia) | 5,226.68 mi (8,411.52 km) |
| Chios to Oakville (Missouri) | 5,772.33 mi (9,289.67 km) |
| Chios to Oatfield (Oregon) | 6,330.51 mi (10,187.97 km) |
| Chios to Ocala (Florida) | 5,870.21 mi (9,447.20 km) |
| Chios to Ocean Acres (New Jersey) | 5,062.40 mi (8,147.14 km) |
| Chios to Ocean City (New Jersey) | 5,095.69 mi (8,200.73 km) |
| Chios to Ocean Pines (Maryland) | 5,155.85 mi (8,297.54 km) |
| Chios to Ocean Pointe (Hawaii) | 8,303.98 mi (13,363.96 km) |
| Chios to Ocean Springs (Mississippi) | 6,102.49 mi (9,821.02 km) |
| Chios to Oceanside (California) | 6,961.82 mi (11,203.96 km) |
| Chios to Oceanside (New York) | 4,998.70 mi (8,044.63 km) |
| Chios to Ocoee (Florida) | 5,869.64 mi (9,446.27 km) |
| Chios to Oconomowoc (Wisconsin) | 5,479.52 mi (8,818.43 km) |
| Chios to Odenton (Maryland) | 5,193.39 mi (8,357.95 km) |
