| North Valley Stream to Olympia Heights (Florida) | 1,101.55 mi (1,772.77 km) |
| North Valley Stream to Omaha (Nebraska) | 1,163.14 mi (1,871.89 km) |
| North Valley Stream to On Top of the World Designated Place (Florida) | 934.98 mi (1,504.71 km) |
| North Valley Stream to Onalaska (Wisconsin) | 919.56 mi (1,479.89 km) |
| North Valley Stream to Oneida (New York) | 193.49 mi (311.39 km) |
| North Valley Stream to Oneonta (New York) | 141.09 mi (227.07 km) |
| North Valley Stream to Ontario (California) | 2,428.32 mi (3,908.01 km) |
| North Valley Stream to Ontario (Oregon) | 2,195.80 mi (3,533.80 km) |
| North Valley Stream to Opa-locka (Florida) | 1,088.38 mi (1,751.58 km) |
| North Valley Stream to Opelika (Alabama) | 850.36 mi (1,368.53 km) |
| North Valley Stream to Opelousas (Louisiana) | 1,244.13 mi (2,002.23 km) |
| North Valley Stream to Orange (California) | 2,446.25 mi (3,936.87 km) |
| North Valley Stream to Orange (Texas) | 1,339.55 mi (2,155.79 km) |
| North Valley Stream to Orange City (Florida) | 917.74 mi (1,476.96 km) |
| North Valley Stream to Orangeburg (South Carolina) | 634.00 mi (1,020.32 km) |
