| Kapfenberg to Olympia Heights (Florida) | 5,177.42 mi (8,332.25 km) |
| Kapfenberg to Omaha (Nebraska) | 5,009.13 mi (8,061.42 km) |
| Kapfenberg to On Top of the World Designated Place (Florida) | 5,093.41 mi (8,197.04 km) |
| Kapfenberg to Onalaska (Wisconsin) | 4,708.59 mi (7,577.74 km) |
| Kapfenberg to Oneida (New York) | 4,169.09 mi (6,709.50 km) |
| Kapfenberg to Oneonta (New York) | 4,172.57 mi (6,715.10 km) |
| Kapfenberg to Ontario (California) | 6,096.44 mi (9,811.28 km) |
| Kapfenberg to Ontario (Oregon) | 5,482.54 mi (8,823.30 km) |
| Kapfenberg to Opa-locka (Florida) | 5,165.09 mi (8,312.41 km) |
| Kapfenberg to Opelika (Alabama) | 5,044.90 mi (8,118.99 km) |
| Kapfenberg to Opelousas (Louisiana) | 5,420.61 mi (8,723.62 km) |
| Kapfenberg to Orange (California) | 6,116.69 mi (9,843.87 km) |
| Kapfenberg to Orange (Texas) | 5,507.17 mi (8,862.93 km) |
| Kapfenberg to Orange City (Florida) | 5,059.60 mi (8,142.65 km) |
| Kapfenberg to Orangeburg (South Carolina) | 4,819.89 mi (7,756.87 km) |
