| Donostia to Oberriet | 624.40 mi (1,004.88 km) |
| Donostia to Obersiggenthal | 574.82 mi (925.08 km) |
| Donostia to Oberwil | 545.11 mi (877.27 km) |
| Donostia to Oberwingert | 595.78 mi (958.81 km) |
| Donostia to Oftringen | 553.87 mi (891.37 km) |
| Donostia to Olten | 554.20 mi (891.89 km) |
| Donostia to Onex | 442.79 mi (712.61 km) |
| Donostia to Opfikon | 584.77 mi (941.09 km) |
| Donostia to Ostermundigen | 524.93 mi (844.80 km) |
| Donostia to Payerne | 497.12 mi (800.03 km) |
| Donostia to Pfaffikon | 592.04 mi (952.80 km) |
| Donostia to Plan-les-Ouates | 443.07 mi (713.05 km) |
| Donostia to Pratteln | 551.19 mi (887.05 km) |
| Donostia to Prilly | 474.46 mi (763.57 km) |
| Donostia to Pully | 476.86 mi (767.44 km) |
