| Fall River to Opole | 4,041.28 mi (6,503.81 km) |
| Fall River to Orzesze | 4,090.11 mi (6,582.39 km) |
| Fall River to Osowa | 3,939.12 mi (6,339.40 km) |
| Fall River to Ostroda | 4,016.21 mi (6,463.47 km) |
| Fall River to Ostroleka | 4,095.11 mi (6,590.45 km) |
| Fall River to Ostrow Mazowiecka | 4,116.35 mi (6,624.62 km) |
| Fall River to Ostrow Wielkopolski | 4,004.33 mi (6,444.35 km) |
| Fall River to Ostrowiec Swietokrzyski | 4,163.41 mi (6,700.36 km) |
| Fall River to Ostrzeszow | 4,016.40 mi (6,463.77 km) |
| Fall River to Oswiecim | 4,112.08 mi (6,617.76 km) |
| Fall River to Otwock | 4,117.01 mi (6,625.69 km) |
| Fall River to Ozarow Mazowiecki | 4,096.42 mi (6,592.56 km) |
| Fall River to Ozimek | 4,051.79 mi (6,520.72 km) |
| Fall River to Ozorkow | 4,048.81 mi (6,515.94 km) |
| Fall River to Pabianice | 4,063.19 mi (6,539.08 km) |
