| Owings Mills to Oxford (Alabama) | 644.06 mi (1,036.51 km) |
| Owings Mills to Oxford (Mississippi) | 784.82 mi (1,263.04 km) |
| Owings Mills to Oxford (Ohio) | 424.19 mi (682.66 km) |
| Owings Mills to Oxnard (California) | 2,350.87 mi (3,783.36 km) |
| Owings Mills to Oxon Hill (Maryland) | 44.14 mi (71.03 km) |
| Owings Mills to Ozark (Alabama) | 741.58 mi (1,193.45 km) |
| Owings Mills to Ozark (Missouri) | 905.16 mi (1,456.71 km) |
| Owings Mills to Pace (Florida) | 843.68 mi (1,357.77 km) |
| Owings Mills to Pacific Grove (California) | 2,438.88 mi (3,924.99 km) |
| Owings Mills to Pacifica (California) | 2,446.60 mi (3,937.42 km) |
| Owings Mills to Paducah (Kentucky) | 662.67 mi (1,066.46 km) |
| Owings Mills to Pahrump (Nevada) | 2,134.41 mi (3,435.00 km) |
| Owings Mills to Painesville (Ohio) | 283.46 mi (456.18 km) |
| Owings Mills to Palatine (Illinois) | 617.24 mi (993.35 km) |
| Owings Mills to Palatka (Florida) | 729.12 mi (1,173.41 km) |
