| Americus to Opole | 5,022.13 mi (8,082.34 km) |
| Americus to Orzesze | 5,071.16 mi (8,161.25 km) |
| Americus to Osowa | 4,913.97 mi (7,908.27 km) |
| Americus to Ostroda | 4,991.56 mi (8,033.14 km) |
| Americus to Ostroleka | 5,070.62 mi (8,160.37 km) |
| Americus to Ostrow Mazowiecka | 5,092.13 mi (8,194.99 km) |
| Americus to Ostrow Wielkopolski | 4,984.15 mi (8,021.22 km) |
| Americus to Ostrowiec Swietokrzyski | 5,142.48 mi (8,276.03 km) |
| Americus to Ostrzeszow | 4,996.45 mi (8,041.01 km) |
| Americus to Oswiecim | 5,093.08 mi (8,196.52 km) |
| Americus to Otwock | 5,094.40 mi (8,198.65 km) |
| Americus to Ozarow Mazowiecki | 5,073.93 mi (8,165.70 km) |
| Americus to Ozimek | 5,032.53 mi (8,099.08 km) |
| Americus to Ozorkow | 5,027.53 mi (8,091.03 km) |
| Americus to Pabianice | 5,042.31 mi (8,114.81 km) |
