| Gilching to Olivenza | 1,125.57 mi (1,811.44 km) |
| Gilching to Olot | 592.73 mi (953.90 km) |
| Gilching to Onate | 749.00 mi (1,205.39 km) |
| Gilching to Onda | 802.65 mi (1,291.74 km) |
| Gilching to Onteniente | 874.61 mi (1,407.55 km) |
| Gilching to Orihuela | 925.94 mi (1,490.15 km) |
| Gilching to Osuna | 1,117.76 mi (1,798.87 km) |
| Gilching to Ourense | 1,010.89 mi (1,626.87 km) |
| Gilching to Oviedo | 887.24 mi (1,427.88 km) |
| Gilching to Paiporta | 835.92 mi (1,345.29 km) |
| Gilching to Pajara | 1,923.10 mi (3,094.94 km) |
| Gilching to Palafolls | 610.20 mi (982.02 km) |
| Gilching to Palafrugell | 583.39 mi (938.87 km) |
| Gilching to Palamos | 588.31 mi (946.79 km) |
| Gilching to Palencia | 877.63 mi (1,412.42 km) |
