| Sorum to Olympia Heights (Florida) | 4,745.99 mi (7,637.93 km) |
| Sorum to Omaha (Nebraska) | 4,329.20 mi (6,967.17 km) |
| Sorum to On Top of the World Designated Place (Florida) | 4,613.82 mi (7,425.22 km) |
| Sorum to Onalaska (Wisconsin) | 4,041.51 mi (6,504.18 km) |
| Sorum to Oneida (New York) | 3,615.50 mi (5,818.58 km) |
| Sorum to Oneonta (New York) | 3,629.83 mi (5,841.65 km) |
| Sorum to Ontario (California) | 5,321.12 mi (8,563.51 km) |
| Sorum to Ontario (Oregon) | 4,678.27 mi (7,528.95 km) |
| Sorum to Opa-locka (Florida) | 4,732.95 mi (7,616.95 km) |
| Sorum to Opelika (Alabama) | 4,507.80 mi (7,254.61 km) |
| Sorum to Opelousas (Louisiana) | 4,842.80 mi (7,793.74 km) |
| Sorum to Orange (California) | 5,340.96 mi (8,595.45 km) |
| Sorum to Orange (Texas) | 4,918.14 mi (7,914.99 km) |
| Sorum to Orange City (Florida) | 4,590.90 mi (7,388.34 km) |
| Sorum to Orangeburg (South Carolina) | 4,314.98 mi (6,944.29 km) |
