| Cerklje na Gorenjskem to Olympia Heights (Florida) | 5,172.52 mi (8,324.36 km) |
| Cerklje na Gorenjskem to Omaha (Nebraska) | 5,036.95 mi (8,106.19 km) |
| Cerklje na Gorenjskem to On Top of the World Designated Place (Florida) | 5,094.43 mi (8,198.69 km) |
| Cerklje na Gorenjskem to Onalaska (Wisconsin) | 4,735.16 mi (7,620.50 km) |
| Cerklje na Gorenjskem to Oneida (New York) | 4,181.85 mi (6,730.04 km) |
| Cerklje na Gorenjskem to Oneonta (New York) | 4,183.97 mi (6,733.44 km) |
| Cerklje na Gorenjskem to Ontario (California) | 6,138.33 mi (9,878.69 km) |
| Cerklje na Gorenjskem to Ontario (Oregon) | 5,530.88 mi (8,901.09 km) |
| Cerklje na Gorenjskem to Opa-locka (Florida) | 5,160.30 mi (8,304.70 km) |
| Cerklje na Gorenjskem to Opelika (Alabama) | 5,053.16 mi (8,132.27 km) |
| Cerklje na Gorenjskem to Opelousas (Louisiana) | 5,433.22 mi (8,743.93 km) |
| Cerklje na Gorenjskem to Orange (California) | 6,158.63 mi (9,911.36 km) |
| Cerklje na Gorenjskem to Orange (Texas) | 5,521.09 mi (8,885.33 km) |
| Cerklje na Gorenjskem to Orange City (Florida) | 5,059.41 mi (8,142.34 km) |
| Cerklje na Gorenjskem to Orangeburg (South Carolina) | 4,824.74 mi (7,764.66 km) |
