| Kajaani to Olympia Heights (Florida) | 5,138.29 mi (8,269.29 km) |
| Kajaani to Omaha (Nebraska) | 4,536.17 mi (7,300.26 km) |
| Kajaani to On Top of the World Designated Place (Florida) | 4,978.54 mi (8,012.18 km) |
| Kajaani to Onalaska (Wisconsin) | 4,269.00 mi (6,870.30 km) |
| Kajaani to Oneida (New York) | 3,952.80 mi (6,361.42 km) |
| Kajaani to Oneonta (New York) | 3,974.74 mi (6,396.73 km) |
| Kajaani to Ontario (California) | 5,389.63 mi (8,673.77 km) |
| Kajaani to Ontario (Oregon) | 4,714.72 mi (7,587.61 km) |
| Kajaani to Opa-locka (Florida) | 5,125.10 mi (8,248.04 km) |
| Kajaani to Opelika (Alabama) | 4,834.81 mi (7,780.87 km) |
| Kajaani to Opelousas (Louisiana) | 5,130.80 mi (8,257.22 km) |
| Kajaani to Orange (California) | 5,408.49 mi (8,704.12 km) |
| Kajaani to Orange (Texas) | 5,195.26 mi (8,360.97 km) |
| Kajaani to Orange City (Florida) | 4,963.20 mi (7,987.49 km) |
| Kajaani to Orangeburg (South Carolina) | 4,669.31 mi (7,514.54 km) |
