| Cities | Distance |
|---|---|
| Trets to Novi di Modena | 277.04 mi (445.86 km) |
| Trets to Novi Ligure | 178.52 mi (287.29 km) |
| Trets to Nuoro | 286.26 mi (460.70 km) |
| Trets to Occhiobello | 309.27 mi (497.73 km) |
| Trets to Oderzo | 371.44 mi (597.78 km) |
| Trets to Oggiono | 241.90 mi (389.30 km) |
| Trets to Olbia | 262.05 mi (421.73 km) |
| Trets to Oleggio | 207.85 mi (334.50 km) |
| Trets to Olgiate Comasco | 228.21 mi (367.27 km) |
| Trets to Olgiate Olona | 218.18 mi (351.12 km) |
| Trets to Omegna | 214.68 mi (345.49 km) |
| Trets to Opera | 219.66 mi (353.51 km) |
| Trets to Oppeano | 300.10 mi (482.96 km) |
| Trets to Orbassano | 141.50 mi (227.72 km) |
| Trets to Orbetello | 288.01 mi (463.50 km) |