| Gallarate to Orzesze | 554.95 mi (893.10 km) |
| Gallarate to Osowa | 740.82 mi (1,192.24 km) |
| Gallarate to Ostroda | 745.14 mi (1,199.19 km) |
| Gallarate to Ostroleka | 767.37 mi (1,234.96 km) |
| Gallarate to Ostrow Mazowiecka | 767.90 mi (1,235.81 km) |
| Gallarate to Ostrow Wielkopolski | 582.83 mi (937.97 km) |
| Gallarate to Ostrowiec Swietokrzyski | 682.99 mi (1,099.17 km) |
| Gallarate to Ostrzeszow | 576.12 mi (927.17 km) |
| Gallarate to Oswiecim | 569.45 mi (916.44 km) |
| Gallarate to Otwock | 719.38 mi (1,157.73 km) |
| Gallarate to Ozarow Mazowiecki | 706.90 mi (1,137.65 km) |
| Gallarate to Ozimek | 554.46 mi (892.32 km) |
| Gallarate to Ozorkow | 644.94 mi (1,037.94 km) |
| Gallarate to Pabianice | 635.05 mi (1,022.01 km) |
| Gallarate to Parczew | 761.50 mi (1,225.51 km) |
