| Bel Air South to Nuth | 3,866.18 mi (6,222.01 km) |
| Bel Air South to Oegstgeest | 3,777.12 mi (6,078.68 km) |
| Bel Air South to Oirschot | 3,827.51 mi (6,159.78 km) |
| Bel Air South to Oisterwijk | 3,821.37 mi (6,149.91 km) |
| Bel Air South to Oldebroek | 3,826.78 mi (6,158.61 km) |
| Bel Air South to Oldenzaal | 3,870.62 mi (6,229.16 km) |
| Bel Air South to Ommen | 3,845.24 mi (6,188.31 km) |
| Bel Air South to Oosterend | 3,819.17 mi (6,146.36 km) |
| Bel Air South to Oosterhout | 3,806.17 mi (6,125.44 km) |
| Bel Air South to Oosterwolde | 3,828.21 mi (6,160.90 km) |
| Bel Air South to Oostzaan | 3,787.34 mi (6,095.13 km) |
| Bel Air South to Opmeer | 3,783.34 mi (6,088.70 km) |
| Bel Air South to Oss | 3,829.24 mi (6,162.57 km) |
| Bel Air South to Oud-Beijerland | 3,783.59 mi (6,089.10 km) |
| Bel Air South to Oudenbosch | 3,794.24 mi (6,106.25 km) |
