| Idanha-a-Nova to Orthez | 414.55 mi (667.16 km) |
| Idanha-a-Nova to Orvault | 580.21 mi (933.76 km) |
| Idanha-a-Nova to Osny | 779.11 mi (1,253.85 km) |
| Idanha-a-Nova to Ostwald | 947.59 mi (1,525.00 km) |
| Idanha-a-Nova to Ouistreham | 731.52 mi (1,177.26 km) |
| Idanha-a-Nova to Oullins | 728.83 mi (1,172.94 km) |
| Idanha-a-Nova to Outreau | 858.54 mi (1,381.68 km) |
| Idanha-a-Nova to Oyonnax | 782.59 mi (1,259.46 km) |
| Idanha-a-Nova to Ozoir-la-Ferriere | 782.71 mi (1,259.65 km) |
| Idanha-a-Nova to Pace | 629.66 mi (1,013.34 km) |
| Idanha-a-Nova to Palaiseau | 766.28 mi (1,233.21 km) |
| Idanha-a-Nova to Pamiers | 507.80 mi (817.22 km) |
| Idanha-a-Nova to Panazol | 594.80 mi (957.24 km) |
| Idanha-a-Nova to Pantin | 780.43 mi (1,255.99 km) |
| Idanha-a-Nova to Paray-le-Monial | 727.44 mi (1,170.70 km) |
