| Security-Widefield to Nuth | 4,958.65 mi (7,980.18 km) |
| Security-Widefield to Oegstgeest | 4,856.21 mi (7,815.31 km) |
| Security-Widefield to Oirschot | 4,913.53 mi (7,907.57 km) |
| Security-Widefield to Oisterwijk | 4,906.57 mi (7,896.36 km) |
| Security-Widefield to Oldebroek | 4,891.71 mi (7,872.45 km) |
| Security-Widefield to Oldenzaal | 4,931.11 mi (7,935.85 km) |
| Security-Widefield to Ommen | 4,905.54 mi (7,894.71 km) |
| Security-Widefield to Oosterend | 4,872.84 mi (7,842.07 km) |
| Security-Widefield to Oosterhout | 4,892.53 mi (7,873.77 km) |
| Security-Widefield to Oosterwolde | 4,880.65 mi (7,854.64 km) |
| Security-Widefield to Oostzaan | 4,859.18 mi (7,820.10 km) |
| Security-Widefield to Opmeer | 4,849.85 mi (7,805.07 km) |
| Security-Widefield to Oss | 4,909.06 mi (7,900.37 km) |
| Security-Widefield to Oud-Beijerland | 4,869.77 mi (7,837.14 km) |
| Security-Widefield to Oudenbosch | 4,883.73 mi (7,859.61 km) |
