| Grammichele to Orthez | 917.76 mi (1,476.99 km) |
| Grammichele to Orvault | 1,079.90 mi (1,737.93 km) |
| Grammichele to Osny | 1,032.32 mi (1,661.35 km) |
| Grammichele to Ostwald | 857.23 mi (1,379.58 km) |
| Grammichele to Ouistreham | 1,117.00 mi (1,797.64 km) |
| Grammichele to Oullins | 775.89 mi (1,248.68 km) |
| Grammichele to Outreau | 1,131.89 mi (1,821.59 km) |
| Grammichele to Oyonnax | 776.50 mi (1,249.66 km) |
| Grammichele to Ozoir-la-Ferriere | 999.14 mi (1,607.97 km) |
| Grammichele to Pace | 1,120.59 mi (1,803.41 km) |
| Grammichele to Palaiseau | 1,009.13 mi (1,624.03 km) |
| Grammichele to Pamiers | 798.19 mi (1,284.57 km) |
| Grammichele to Panazol | 909.00 mi (1,462.90 km) |
| Grammichele to Pantin | 1,013.67 mi (1,631.35 km) |
| Grammichele to Paray-le-Monial | 835.39 mi (1,344.43 km) |
