| Klosterneuburg to Novi di Modena | 348.61 mi (561.04 km) |
| Klosterneuburg to Novi Ligure | 433.43 mi (697.55 km) |
| Klosterneuburg to Nuoro | 650.36 mi (1,046.65 km) |
| Klosterneuburg to Occhiobello | 324.13 mi (521.63 km) |
| Klosterneuburg to Oderzo | 250.57 mi (403.25 km) |
| Klosterneuburg to Oggiono | 371.19 mi (597.37 km) |
| Klosterneuburg to Olbia | 610.15 mi (981.94 km) |
| Klosterneuburg to Oleggio | 407.45 mi (655.73 km) |
| Klosterneuburg to Olgiate Comasco | 387.20 mi (623.13 km) |
| Klosterneuburg to Olgiate Olona | 395.85 mi (637.06 km) |
| Klosterneuburg to Omegna | 407.84 mi (656.36 km) |
| Klosterneuburg to Opera | 391.32 mi (629.77 km) |
| Klosterneuburg to Oppeano | 319.30 mi (513.86 km) |
| Klosterneuburg to Orbassano | 474.20 mi (763.16 km) |
| Klosterneuburg to Orbetello | 474.70 mi (763.96 km) |
