| Kloten to Opole | 477.64 mi (768.69 km) |
| Kloten to Orzesze | 498.37 mi (802.06 km) |
| Kloten to Osowa | 645.12 mi (1,038.21 km) |
| Kloten to Ostroda | 658.89 mi (1,060.38 km) |
| Kloten to Ostroleka | 690.86 mi (1,111.83 km) |
| Kloten to Ostrow Mazowiecka | 694.51 mi (1,117.71 km) |
| Kloten to Ostrow Wielkopolski | 504.86 mi (812.50 km) |
| Kloten to Ostrowiec Swietokrzyski | 625.73 mi (1,007.01 km) |
| Kloten to Ostrzeszow | 501.04 mi (806.34 km) |
| Kloten to Oswiecim | 516.07 mi (830.53 km) |
| Kloten to Otwock | 649.96 mi (1,046.01 km) |
| Kloten to Ozarow Mazowiecki | 635.10 mi (1,022.09 km) |
| Kloten to Ozimek | 489.04 mi (787.03 km) |
| Kloten to Ozorkow | 570.05 mi (917.41 km) |
| Kloten to Pabianice | 563.61 mi (907.03 km) |
