| Alcoy to Oerlinghausen | 1,016.73 mi (1,636.27 km) |
| Alcoy to Oestrich-Winkel | 884.69 mi (1,423.78 km) |
| Alcoy to Offenburg | 794.25 mi (1,278.22 km) |
| Alcoy to Oftersheim | 862.41 mi (1,387.92 km) |
| Alcoy to Ohrdruf | 999.84 mi (1,609.09 km) |
| Alcoy to Ohringen | 877.34 mi (1,411.94 km) |
| Alcoy to Olbernhau | 1,065.92 mi (1,715.44 km) |
| Alcoy to Olching | 881.60 mi (1,418.79 km) |
| Alcoy to Oldenburg | 1,080.04 mi (1,738.15 km) |
| Alcoy to Oldenburg in Holstein | 1,202.26 mi (1,934.86 km) |
| Alcoy to Olfen | 976.06 mi (1,570.81 km) |
| Alcoy to Olpe | 941.94 mi (1,515.90 km) |
| Alcoy to Olsberg | 975.78 mi (1,570.37 km) |
| Alcoy to Oranienburg | 1,170.60 mi (1,883.89 km) |
| Alcoy to Ortenberg | 930.51 mi (1,497.51 km) |
