| Os to Orthez | 1,185.59 mi (1,908.02 km) |
| Os to Orvault | 939.63 mi (1,512.19 km) |
| Os to Osny | 783.32 mi (1,260.64 km) |
| Os to Ostwald | 811.61 mi (1,306.16 km) |
| Os to Ouistreham | 789.49 mi (1,270.56 km) |
| Os to Oullins | 1,003.05 mi (1,614.25 km) |
| Os to Outreau | 675.02 mi (1,086.34 km) |
| Os to Oyonnax | 965.32 mi (1,553.53 km) |
| Os to Ozoir-la-Ferriere | 798.77 mi (1,285.50 km) |
| Os to Pace | 883.29 mi (1,421.52 km) |
| Os to Palaiseau | 805.69 mi (1,296.63 km) |
| Os to Pamiers | 1,193.26 mi (1,920.37 km) |
| Os to Panazol | 1,008.57 mi (1,623.14 km) |
| Os to Pantin | 792.26 mi (1,275.02 km) |
| Os to Paray-le-Monial | 953.41 mi (1,534.36 km) |
