| Omaha to Oerlinghausen | 4,581.57 mi (7,373.32 km) |
| Omaha to Oestrich-Winkel | 4,641.46 mi (7,469.70 km) |
| Omaha to Offenburg | 4,704.22 mi (7,570.71 km) |
| Omaha to Oftersheim | 4,688.82 mi (7,545.93 km) |
| Omaha to Ohrdruf | 4,700.21 mi (7,564.26 km) |
| Omaha to Ohringen | 4,728.42 mi (7,609.66 km) |
| Omaha to Olbernhau | 4,794.55 mi (7,716.08 km) |
| Omaha to Olching | 4,836.29 mi (7,783.26 km) |
| Omaha to Oldenburg | 4,517.34 mi (7,269.96 km) |
| Omaha to Oldenburg in Holstein | 4,555.55 mi (7,331.45 km) |
| Omaha to Olfen | 4,548.28 mi (7,319.76 km) |
| Omaha to Olpe | 4,592.89 mi (7,391.55 km) |
| Omaha to Olsberg | 4,601.27 mi (7,405.03 km) |
| Omaha to Oranienburg | 4,697.89 mi (7,560.52 km) |
| Omaha to Ortenberg | 4,663.14 mi (7,504.61 km) |
