| Lake Grove to Olympia Heights (Florida) | 1,124.75 mi (1,810.11 km) |
| Lake Grove to Omaha (Nebraska) | 1,191.76 mi (1,917.95 km) |
| Lake Grove to On Top of the World Designated Place (Florida) | 962.47 mi (1,548.95 km) |
| Lake Grove to Onalaska (Wisconsin) | 944.77 mi (1,520.47 km) |
| Lake Grove to Oneida (New York) | 201.45 mi (324.20 km) |
| Lake Grove to Oneonta (New York) | 149.32 mi (240.31 km) |
| Lake Grove to Ontario (California) | 2,458.43 mi (3,956.47 km) |
| Lake Grove to Ontario (Oregon) | 2,220.50 mi (3,573.56 km) |
| Lake Grove to Opa-locka (Florida) | 1,111.56 mi (1,788.89 km) |
| Lake Grove to Opelika (Alabama) | 882.39 mi (1,420.08 km) |
| Lake Grove to Opelousas (Louisiana) | 1,277.07 mi (2,055.25 km) |
| Lake Grove to Orange (California) | 2,476.42 mi (3,985.42 km) |
| Lake Grove to Orange (Texas) | 1,372.60 mi (2,208.99 km) |
| Lake Grove to Orange City (Florida) | 944.00 mi (1,519.22 km) |
| Lake Grove to Orangeburg (South Carolina) | 663.53 mi (1,067.85 km) |
