| Sankt Polten to Oestrich-Winkel | 366.12 mi (589.21 km) |
| Sankt Polten to Offenburg | 353.25 mi (568.51 km) |
| Sankt Polten to Oftersheim | 330.05 mi (531.16 km) |
| Sankt Polten to Ohrdruf | 284.45 mi (457.78 km) |
| Sankt Polten to Ohringen | 287.27 mi (462.32 km) |
| Sankt Polten to Olbernhau | 198.91 mi (320.11 km) |
| Sankt Polten to Olching | 198.00 mi (318.65 km) |
| Sankt Polten to Oldenburg | 470.44 mi (757.11 km) |
| Sankt Polten to Oldenburg in Holstein | 468.30 mi (753.65 km) |
| Sankt Polten to Olfen | 438.89 mi (706.33 km) |
| Sankt Polten to Olpe | 398.85 mi (641.89 km) |
| Sankt Polten to Olsberg | 385.32 mi (620.11 km) |
| Sankt Polten to Oranienburg | 331.57 mi (533.61 km) |
| Sankt Polten to Ortenberg | 330.99 mi (532.68 km) |
| Sankt Polten to Oschatz | 241.70 mi (388.98 km) |
