| Dorchester to Oxford (Alabama) | 4,197.43 mi (6,755.11 km) |
| Dorchester to Oxford (Mississippi) | 4,311.20 mi (6,938.20 km) |
| Dorchester to Oxford (Ohio) | 3,875.95 mi (6,237.74 km) |
| Dorchester to Oxnard (California) | 5,423.93 mi (8,728.98 km) |
| Dorchester to Oxon Hill (Maryland) | 3,588.80 mi (5,775.61 km) |
| Dorchester to Ozark (Alabama) | 4,291.68 mi (6,906.79 km) |
| Dorchester to Ozark (Missouri) | 4,329.11 mi (6,967.03 km) |
| Dorchester to Pace (Florida) | 4,395.95 mi (7,074.60 km) |
| Dorchester to Pacific Grove (California) | 5,374.66 mi (8,649.68 km) |
| Dorchester to Pacifica (California) | 5,335.11 mi (8,586.03 km) |
| Dorchester to Paducah (Kentucky) | 4,145.62 mi (6,671.73 km) |
| Dorchester to Pahrump (Nevada) | 5,204.94 mi (8,376.54 km) |
| Dorchester to Painesville (Ohio) | 3,637.22 mi (5,853.54 km) |
| Dorchester to Palatine (Illinois) | 3,888.84 mi (6,258.48 km) |
| Dorchester to Palatka (Florida) | 4,210.72 mi (6,776.50 km) |
