| Tuusula to Olympia Heights (Florida) | 5,178.99 mi (8,334.78 km) |
| Tuusula to Omaha (Nebraska) | 4,666.61 mi (7,510.18 km) |
| Tuusula to On Top of the World Designated Place (Florida) | 5,034.53 mi (8,102.29 km) |
| Tuusula to Onalaska (Wisconsin) | 4,389.83 mi (7,064.75 km) |
| Tuusula to Oneida (New York) | 4,020.80 mi (6,470.85 km) |
| Tuusula to Oneonta (New York) | 4,038.86 mi (6,499.92 km) |
| Tuusula to Ontario (California) | 5,575.04 mi (8,972.17 km) |
| Tuusula to Ontario (Oregon) | 4,908.82 mi (7,899.99 km) |
| Tuusula to Opa-locka (Florida) | 5,165.86 mi (8,313.66 km) |
| Tuusula to Opelika (Alabama) | 4,910.47 mi (7,902.63 km) |
| Tuusula to Opelousas (Louisiana) | 5,226.52 mi (8,411.27 km) |
| Tuusula to Orange (California) | 5,594.29 mi (9,003.14 km) |
| Tuusula to Orange (Texas) | 5,296.32 mi (8,523.61 km) |
| Tuusula to Orange City (Florida) | 5,014.96 mi (8,070.80 km) |
| Tuusula to Orangeburg (South Carolina) | 4,730.26 mi (7,612.61 km) |
