| Omaha to Nuth | 4,528.98 mi (7,288.69 km) |
| Omaha to Oegstgeest | 4,428.65 mi (7,127.23 km) |
| Omaha to Oirschot | 4,484.92 mi (7,217.78 km) |
| Omaha to Oisterwijk | 4,478.08 mi (7,206.77 km) |
| Omaha to Oldebroek | 4,467.55 mi (7,189.82 km) |
| Omaha to Oldenzaal | 4,508.25 mi (7,255.32 km) |
| Omaha to Ommen | 4,482.51 mi (7,213.91 km) |
| Omaha to Oosterend | 4,451.01 mi (7,163.21 km) |
| Omaha to Oosterhout | 4,463.68 mi (7,183.60 km) |
| Omaha to Oosterwolde | 4,459.16 mi (7,176.32 km) |
| Omaha to Oostzaan | 4,433.23 mi (7,134.60 km) |
| Omaha to Opmeer | 4,424.99 mi (7,121.34 km) |
| Omaha to Oss | 4,481.76 mi (7,212.70 km) |
| Omaha to Oud-Beijerland | 4,440.78 mi (7,146.75 km) |
| Omaha to Oudenbosch | 4,454.13 mi (7,168.24 km) |
