| San Gregorio di Catania to Orzesze | 887.78 mi (1,428.75 km) |
| San Gregorio di Catania to Osowa | 1,175.68 mi (1,892.07 km) |
| San Gregorio di Catania to Ostroda | 1,138.40 mi (1,832.07 km) |
| San Gregorio di Catania to Ostroleka | 1,114.73 mi (1,793.99 km) |
| San Gregorio di Catania to Ostrow Mazowiecka | 1,101.93 mi (1,773.39 km) |
| San Gregorio di Catania to Ostrow Wielkopolski | 981.86 mi (1,580.15 km) |
| San Gregorio di Catania to Ostrowiec Swietokrzyski | 973.60 mi (1,566.85 km) |
| San Gregorio di Catania to Ostrzeszow | 966.77 mi (1,555.86 km) |
| San Gregorio di Catania to Oswiecim | 885.31 mi (1,424.77 km) |
| San Gregorio di Catania to Otwock | 1,048.54 mi (1,687.46 km) |
| San Gregorio di Catania to Ozarow Mazowiecki | 1,048.93 mi (1,688.09 km) |
| San Gregorio di Catania to Ozimek | 918.28 mi (1,477.83 km) |
| San Gregorio di Catania to Ozorkow | 1,015.29 mi (1,633.95 km) |
| San Gregorio di Catania to Pabianice | 994.99 mi (1,601.29 km) |
| San Gregorio di Catania to Parczew | 1,042.59 mi (1,677.88 km) |
