| Seymour to Nuth | 4,269.01 mi (6,870.31 km) |
| Seymour to Oegstgeest | 4,174.75 mi (6,718.61 km) |
| Seymour to Oirschot | 4,227.89 mi (6,804.13 km) |
| Seymour to Oisterwijk | 4,221.43 mi (6,793.73 km) |
| Seymour to Oldebroek | 4,220.34 mi (6,791.99 km) |
| Seymour to Oldenzaal | 4,263.20 mi (6,860.96 km) |
| Seymour to Ommen | 4,237.50 mi (6,819.59 km) |
| Seymour to Oosterend | 4,209.00 mi (6,773.73 km) |
| Seymour to Oosterhout | 4,206.45 mi (6,769.62 km) |
| Seymour to Oosterwolde | 4,217.73 mi (6,787.79 km) |
| Seymour to Oostzaan | 4,182.73 mi (6,731.45 km) |
| Seymour to Opmeer | 4,176.96 mi (6,722.17 km) |
| Seymour to Oss | 4,227.64 mi (6,803.73 km) |
| Seymour to Oud-Beijerland | 4,183.58 mi (6,732.82 km) |
| Seymour to Oudenbosch | 4,195.41 mi (6,751.86 km) |
