| Siverek to Opole | 1,376.02 mi (2,214.49 km) |
| Siverek to Orzesze | 1,326.55 mi (2,134.88 km) |
| Siverek to Osowa | 1,513.24 mi (2,435.32 km) |
| Siverek to Ostroda | 1,434.53 mi (2,308.65 km) |
| Siverek to Ostroleka | 1,356.52 mi (2,183.11 km) |
| Siverek to Ostrow Mazowiecka | 1,333.72 mi (2,146.42 km) |
| Siverek to Ostrow Wielkopolski | 1,417.44 mi (2,281.16 km) |
| Siverek to Ostrowiec Swietokrzyski | 1,263.72 mi (2,033.77 km) |
| Siverek to Ostrzeszow | 1,404.28 mi (2,259.97 km) |
| Siverek to Oswiecim | 1,304.78 mi (2,099.85 km) |
| Siverek to Otwock | 1,321.08 mi (2,126.08 km) |
| Siverek to Ozarow Mazowiecki | 1,340.51 mi (2,157.34 km) |
| Siverek to Ozimek | 1,365.91 mi (2,198.23 km) |
| Siverek to Ozorkow | 1,379.49 mi (2,220.08 km) |
| Siverek to Pabianice | 1,362.85 mi (2,193.29 km) |
