| Northport to Oakley (California) | 1,931.59 mi (3,108.59 km) |
| Northport to Oakton (Virginia) | 693.57 mi (1,116.19 km) |
| Northport to Oakville (Missouri) | 389.52 mi (626.87 km) |
| Northport to Oatfield (Oregon) | 2,029.38 mi (3,265.98 km) |
| Northport to Ocala (Florida) | 427.80 mi (688.48 km) |
| Northport to Ocean Acres (New Jersey) | 863.43 mi (1,389.56 km) |
| Northport to Ocean City (New Jersey) | 833.46 mi (1,341.33 km) |
| Northport to Ocean Pines (Maryland) | 781.36 mi (1,257.47 km) |
| Northport to Ocean Pointe (Hawaii) | 4,324.87 mi (6,960.21 km) |
| Northport to Ocean Springs (Mississippi) | 208.90 mi (336.19 km) |
| Northport to Oceanside (California) | 1,710.92 mi (2,753.46 km) |
| Northport to Oceanside (New York) | 922.39 mi (1,484.44 km) |
| Northport to Ocoee (Florida) | 483.34 mi (777.87 km) |
| Northport to Oconomowoc (Wisconsin) | 681.67 mi (1,097.05 km) |
| Northport to Odenton (Maryland) | 727.92 mi (1,171.47 km) |
