| Sammamish to Nuth | 4,962.51 mi (7,986.39 km) |
| Sammamish to Oegstgeest | 4,855.92 mi (7,814.84 km) |
| Sammamish to Oirschot | 4,914.99 mi (7,909.91 km) |
| Sammamish to Oisterwijk | 4,907.81 mi (7,898.36 km) |
| Sammamish to Oldebroek | 4,875.27 mi (7,845.99 km) |
| Sammamish to Oldenzaal | 4,907.27 mi (7,897.49 km) |
| Sammamish to Ommen | 4,883.67 mi (7,859.51 km) |
| Sammamish to Oosterend | 4,847.61 mi (7,801.48 km) |
| Sammamish to Oosterhout | 4,896.03 mi (7,879.40 km) |
| Sammamish to Oosterwolde | 4,853.64 mi (7,811.18 km) |
| Sammamish to Oostzaan | 4,851.88 mi (7,808.35 km) |
| Sammamish to Opmeer | 4,838.38 mi (7,786.63 km) |
| Sammamish to Oss | 4,905.05 mi (7,893.92 km) |
| Sammamish to Oud-Beijerland | 4,875.00 mi (7,845.55 km) |
| Sammamish to Oudenbosch | 4,890.91 mi (7,871.17 km) |
