| Ganserndorf to Olympia Heights (Florida) | 5,215.19 mi (8,393.04 km) |
| Ganserndorf to Omaha (Nebraska) | 5,014.92 mi (8,070.73 km) |
| Ganserndorf to On Top of the World Designated Place (Florida) | 5,125.74 mi (8,249.08 km) |
| Ganserndorf to Onalaska (Wisconsin) | 4,715.86 mi (7,589.44 km) |
| Ganserndorf to Oneida (New York) | 4,190.70 mi (6,744.28 km) |
| Ganserndorf to Oneonta (New York) | 4,195.52 mi (6,752.04 km) |
| Ganserndorf to Ontario (California) | 6,086.36 mi (9,795.05 km) |
| Ganserndorf to Ontario (Oregon) | 5,465.38 mi (8,795.69 km) |
| Ganserndorf to Opa-locka (Florida) | 5,202.76 mi (8,373.04 km) |
| Ganserndorf to Opelika (Alabama) | 5,070.39 mi (8,160.00 km) |
| Ganserndorf to Opelousas (Louisiana) | 5,441.64 mi (8,757.47 km) |
| Ganserndorf to Orange (California) | 6,106.55 mi (9,827.54 km) |
| Ganserndorf to Orange (Texas) | 5,526.87 mi (8,894.63 km) |
| Ganserndorf to Orange City (Florida) | 5,093.09 mi (8,196.54 km) |
| Ganserndorf to Orangeburg (South Carolina) | 4,848.77 mi (7,803.34 km) |
