| Billings to Nuth | 4,698.68 mi (7,561.80 km) |
| Billings to Oegstgeest | 4,593.40 mi (7,392.36 km) |
| Billings to Oirschot | 4,652.06 mi (7,486.77 km) |
| Billings to Oisterwijk | 4,644.93 mi (7,475.30 km) |
| Billings to Oldebroek | 4,622.23 mi (7,438.76 km) |
| Billings to Oldenzaal | 4,658.82 mi (7,497.64 km) |
| Billings to Ommen | 4,633.85 mi (7,457.46 km) |
| Billings to Oosterend | 4,599.37 mi (7,401.97 km) |
| Billings to Oosterhout | 4,631.75 mi (7,454.08 km) |
| Billings to Oosterwolde | 4,606.49 mi (7,413.43 km) |
| Billings to Oostzaan | 4,593.34 mi (7,392.27 km) |
| Billings to Opmeer | 4,582.10 mi (7,374.18 km) |
| Billings to Oss | 4,645.16 mi (7,475.66 km) |
| Billings to Oud-Beijerland | 4,609.52 mi (7,418.30 km) |
| Billings to Oudenbosch | 4,624.48 mi (7,442.37 km) |
