| Pieksamaki to Olympia Heights (Florida) | 5,183.06 mi (8,341.33 km) |
| Pieksamaki to Omaha (Nebraska) | 4,620.91 mi (7,436.64 km) |
| Pieksamaki to On Top of the World Designated Place (Florida) | 5,030.28 mi (8,095.45 km) |
| Pieksamaki to Onalaska (Wisconsin) | 4,349.41 mi (6,999.71 km) |
| Pieksamaki to Oneida (New York) | 4,009.33 mi (6,452.40 km) |
| Pieksamaki to Oneonta (New York) | 4,029.52 mi (6,484.88 km) |
| Pieksamaki to Ontario (California) | 5,497.55 mi (8,847.45 km) |
| Pieksamaki to Ontario (Oregon) | 4,825.83 mi (7,766.42 km) |
| Pieksamaki to Opa-locka (Florida) | 5,169.89 mi (8,320.13 km) |
| Pieksamaki to Opelika (Alabama) | 4,895.45 mi (7,878.47 km) |
| Pieksamaki to Opelousas (Louisiana) | 5,200.64 mi (8,369.62 km) |
| Pieksamaki to Orange (California) | 5,516.57 mi (8,878.06 km) |
| Pieksamaki to Orange (Texas) | 5,267.51 mi (8,477.24 km) |
| Pieksamaki to Orange City (Florida) | 5,012.98 mi (8,067.61 km) |
| Pieksamaki to Orangeburg (South Carolina) | 4,723.13 mi (7,601.15 km) |
