| Monfalcone to Orzesze | 385.23 mi (619.97 km) |
| Monfalcone to Osowa | 634.57 mi (1,021.24 km) |
| Monfalcone to Ostroda | 616.19 mi (991.67 km) |
| Monfalcone to Ostroleka | 617.55 mi (993.85 km) |
| Monfalcone to Ostrow Mazowiecka | 612.36 mi (985.50 km) |
| Monfalcone to Ostrow Wielkopolski | 448.64 mi (722.02 km) |
| Monfalcone to Ostrowiec Swietokrzyski | 505.63 mi (813.73 km) |
| Monfalcone to Ostrzeszow | 436.85 mi (703.05 km) |
| Monfalcone to Oswiecim | 393.62 mi (633.48 km) |
| Monfalcone to Otwock | 559.33 mi (900.15 km) |
| Monfalcone to Ozarow Mazowiecki | 551.70 mi (887.88 km) |
| Monfalcone to Ozimek | 399.50 mi (642.93 km) |
| Monfalcone to Ozorkow | 499.44 mi (803.77 km) |
| Monfalcone to Pabianice | 483.87 mi (778.72 km) |
| Monfalcone to Parczew | 585.22 mi (941.82 km) |
