| Milford to Olympia Heights (Florida) | 954.73 mi (1,536.49 km) |
| Milford to Omaha (Nebraska) | 1,099.94 mi (1,770.18 km) |
| Milford to On Top of the World Designated Place (Florida) | 782.56 mi (1,259.41 km) |
| Milford to Onalaska (Wisconsin) | 885.66 mi (1,425.33 km) |
| Milford to Oneida (New York) | 288.24 mi (463.87 km) |
| Milford to Oneonta (New York) | 245.71 mi (395.44 km) |
| Milford to Ontario (California) | 2,346.74 mi (3,776.71 km) |
| Milford to Ontario (Oregon) | 2,156.89 mi (3,471.19 km) |
| Milford to Opa-locka (Florida) | 941.62 mi (1,515.39 km) |
| Milford to Opelika (Alabama) | 704.68 mi (1,134.08 km) |
| Milford to Opelousas (Louisiana) | 1,106.67 mi (1,781.01 km) |
| Milford to Orange (California) | 2,364.08 mi (3,804.62 km) |
| Milford to Orange (Texas) | 1,204.28 mi (1,938.11 km) |
| Milford to Orange City (Florida) | 766.37 mi (1,233.35 km) |
| Milford to Orangeburg (South Carolina) | 481.65 mi (775.14 km) |
