| Donostia to Nasaud | 1,304.60 mi (2,099.54 km) |
| Donostia to Navodari | 1,517.83 mi (2,442.71 km) |
| Donostia to Negresti-Oas | 1,261.48 mi (2,030.16 km) |
| Donostia to Nehoiu | 1,397.59 mi (2,249.21 km) |
| Donostia to Ocna Mures | 1,277.39 mi (2,055.76 km) |
| Donostia to Odobesti | 1,432.34 mi (2,305.13 km) |
| Donostia to Odorheiu Secuiesc | 1,346.18 mi (2,166.47 km) |
| Donostia to Oltenita | 1,423.16 mi (2,290.35 km) |
| Donostia to Onesti | 1,416.33 mi (2,279.36 km) |
| Donostia to Oradea | 1,187.25 mi (1,910.69 km) |
| Donostia to Orastie | 1,246.05 mi (2,005.33 km) |
| Donostia to Oravita | 1,174.41 mi (1,890.02 km) |
| Donostia to Orsova | 1,210.41 mi (1,947.96 km) |
| Donostia to Otelu Rosu | 1,205.66 mi (1,940.33 km) |
| Donostia to Otopeni | 1,391.37 mi (2,239.19 km) |
