| Cities | Distance |
|---|---|
| Trieste to Opwijk | 572.81 mi (921.86 km) |
| Trieste to Ostend | 628.05 mi (1,010.74 km) |
| Trieste to Oud-Heverlee | 550.41 mi (885.80 km) |
| Trieste to Oud-Turnhout | 560.72 mi (902.39 km) |
| Trieste to Oudenaarde | 589.05 mi (947.98 km) |
| Trieste to Oudenburg | 623.52 mi (1,003.45 km) |
| Trieste to Oupeye | 511.63 mi (823.39 km) |
| Trieste to Overijse | 553.02 mi (889.99 km) |
| Trieste to Overpelt | 542.10 mi (872.42 km) |
| Trieste to Paal | 542.04 mi (872.32 km) |
| Trieste to Peer | 537.04 mi (864.29 km) |
| Trieste to Pepinster | 499.52 mi (803.91 km) |
| Trieste to Peruwelz | 577.23 mi (928.97 km) |
| Trieste to Perwez | 536.57 mi (863.52 km) |
| Trieste to Philippeville | 529.52 mi (852.18 km) |