| Lake Monticello to Opole | 4,498.95 mi (7,240.37 km) |
| Lake Monticello to Orzesze | 4,548.07 mi (7,319.41 km) |
| Lake Monticello to Osowa | 4,390.33 mi (7,065.55 km) |
| Lake Monticello to Ostroda | 4,467.89 mi (7,190.37 km) |
| Lake Monticello to Ostroleka | 4,546.94 mi (7,317.59 km) |
| Lake Monticello to Ostrow Mazowiecka | 4,568.43 mi (7,352.18 km) |
| Lake Monticello to Ostrow Wielkopolski | 4,460.67 mi (7,178.75 km) |
| Lake Monticello to Ostrowiec Swietokrzyski | 4,618.86 mi (7,433.34 km) |
| Lake Monticello to Ostrzeszow | 4,473.02 mi (7,198.63 km) |
| Lake Monticello to Oswiecim | 4,569.96 mi (7,354.63 km) |
| Lake Monticello to Otwock | 4,570.67 mi (7,355.78 km) |
| Lake Monticello to Ozarow Mazowiecki | 4,550.20 mi (7,322.84 km) |
| Lake Monticello to Ozimek | 4,509.31 mi (7,257.04 km) |
| Lake Monticello to Ozorkow | 4,503.88 mi (7,248.29 km) |
| Lake Monticello to Pabianice | 4,518.70 mi (7,272.14 km) |
