| Harran to Opole | 1,410.65 mi (2,270.22 km) |
| Harran to Orzesze | 1,360.78 mi (2,189.97 km) |
| Harran to Osowa | 1,555.48 mi (2,503.30 km) |
| Harran to Ostroda | 1,476.90 mi (2,376.84 km) |
| Harran to Ostroleka | 1,399.38 mi (2,252.08 km) |
| Harran to Ostrow Mazowiecka | 1,376.47 mi (2,215.22 km) |
| Harran to Ostrow Wielkopolski | 1,454.06 mi (2,340.09 km) |
| Harran to Ostrowiec Swietokrzyski | 1,302.45 mi (2,096.08 km) |
| Harran to Ostrzeszow | 1,440.52 mi (2,318.29 km) |
| Harran to Oswiecim | 1,339.23 mi (2,155.28 km) |
| Harran to Otwock | 1,361.97 mi (2,191.88 km) |
| Harran to Ozarow Mazowiecki | 1,381.10 mi (2,222.67 km) |
| Harran to Ozimek | 1,400.82 mi (2,254.40 km) |
| Harran to Ozorkow | 1,418.11 mi (2,282.23 km) |
| Harran to Pabianice | 1,400.94 mi (2,254.59 km) |
