| Marsa to Orzesze | 1,008.47 mi (1,622.97 km) |
| Marsa to Osowa | 1,295.31 mi (2,084.59 km) |
| Marsa to Ostroda | 1,258.99 mi (2,026.15 km) |
| Marsa to Ostroleka | 1,235.92 mi (1,989.03 km) |
| Marsa to Ostrow Mazowiecka | 1,223.19 mi (1,968.54 km) |
| Marsa to Ostrow Wielkopolski | 1,101.57 mi (1,772.81 km) |
| Marsa to Ostrowiec Swietokrzyski | 1,094.90 mi (1,762.07 km) |
| Marsa to Ostrzeszow | 1,086.62 mi (1,748.75 km) |
| Marsa to Oswiecim | 1,006.25 mi (1,619.41 km) |
| Marsa to Otwock | 1,169.77 mi (1,882.56 km) |
| Marsa to Ozarow Mazowiecki | 1,170.06 mi (1,883.02 km) |
| Marsa to Ozimek | 1,038.51 mi (1,671.32 km) |
| Marsa to Ozorkow | 1,135.89 mi (1,828.04 km) |
| Marsa to Pabianice | 1,115.71 mi (1,795.56 km) |
| Marsa to Parczew | 1,163.82 mi (1,872.99 km) |
