| Istrana to Orthez | 650.47 mi (1,046.83 km) |
| Istrana to Orvault | 661.18 mi (1,064.07 km) |
| Istrana to Osny | 523.85 mi (843.05 km) |
| Istrana to Ostwald | 285.91 mi (460.13 km) |
| Istrana to Ouistreham | 627.33 mi (1,009.59 km) |
| Istrana to Oullins | 351.76 mi (566.10 km) |
| Istrana to Outreau | 594.48 mi (956.73 km) |
| Istrana to Oyonnax | 311.91 mi (501.97 km) |
| Istrana to Ozoir-la-Ferriere | 490.51 mi (789.40 km) |
| Istrana to Pace | 675.53 mi (1,087.15 km) |
| Istrana to Palaiseau | 507.32 mi (816.45 km) |
| Istrana to Pamiers | 546.84 mi (880.06 km) |
| Istrana to Panazol | 519.83 mi (836.58 km) |
| Istrana to Pantin | 505.33 mi (813.26 km) |
| Istrana to Paray-le-Monial | 386.06 mi (621.31 km) |
