| Sortland to Nuth | 1,268.92 mi (2,042.13 km) |
| Sortland to Oegstgeest | 1,196.22 mi (1,925.13 km) |
| Sortland to Oirschot | 1,234.46 mi (1,986.67 km) |
| Sortland to Oisterwijk | 1,229.73 mi (1,979.06 km) |
| Sortland to Oldebroek | 1,164.95 mi (1,874.81 km) |
| Sortland to Oldenzaal | 1,165.45 mi (1,875.61 km) |
| Sortland to Ommen | 1,156.04 mi (1,860.47 km) |
| Sortland to Oosterend | 1,126.09 mi (1,812.27 km) |
| Sortland to Oosterhout | 1,228.85 mi (1,977.65 km) |
| Sortland to Oosterwolde | 1,125.05 mi (1,810.59 km) |
| Sortland to Oostzaan | 1,175.37 mi (1,891.58 km) |
| Sortland to Opmeer | 1,156.79 mi (1,861.68 km) |
| Sortland to Oss | 1,214.51 mi (1,954.56 km) |
| Sortland to Oud-Beijerland | 1,221.52 mi (1,965.85 km) |
| Sortland to Oudenbosch | 1,235.64 mi (1,988.57 km) |
