| Omaha to Opwijk | 4,466.78 mi (7,188.58 km) |
| Omaha to Ostend | 4,411.48 mi (7,099.59 km) |
| Omaha to Oud-Heverlee | 4,489.30 mi (7,224.83 km) |
| Omaha to Oud-Turnhout | 4,481.15 mi (7,211.72 km) |
| Omaha to Oudenaarde | 4,450.55 mi (7,162.47 km) |
| Omaha to Oudenburg | 4,416.01 mi (7,106.89 km) |
| Omaha to Oupeye | 4,528.98 mi (7,288.69 km) |
| Omaha to Overijse | 4,486.55 mi (7,220.41 km) |
| Omaha to Overpelt | 4,500.41 mi (7,242.71 km) |
| Omaha to Paal | 4,498.97 mi (7,240.40 km) |
| Omaha to Peer | 4,505.09 mi (7,250.25 km) |
| Omaha to Pepinster | 4,540.89 mi (7,307.86 km) |
| Omaha to Peruwelz | 4,463.10 mi (7,182.66 km) |
| Omaha to Perwez | 4,502.97 mi (7,246.83 km) |
| Omaha to Philippeville | 4,510.53 mi (7,258.99 km) |
