| Leiden to Orthez | 646.54 mi (1,040.50 km) |
| Leiden to Orvault | 434.01 mi (698.48 km) |
| Leiden to Osny | 239.19 mi (384.95 km) |
| Leiden to Ostwald | 286.93 mi (461.78 km) |
| Leiden to Ouistreham | 287.57 mi (462.80 km) |
| Leiden to Oullins | 445.54 mi (717.03 km) |
| Leiden to Outreau | 160.24 mi (257.89 km) |
| Leiden to Oyonnax | 411.28 mi (661.90 km) |
| Leiden to Ozoir-la-Ferriere | 246.84 mi (397.25 km) |
| Leiden to Pace | 391.83 mi (630.60 km) |
| Leiden to Palaiseau | 257.70 mi (414.73 km) |
| Leiden to Pamiers | 638.93 mi (1,028.26 km) |
| Leiden to Panazol | 459.80 mi (739.98 km) |
| Leiden to Pantin | 243.39 mi (391.71 km) |
| Leiden to Paray-le-Monial | 394.80 mi (635.37 km) |
