| Smithville to Opole | 4,998.30 mi (8,043.99 km) |
| Smithville to Orzesze | 5,048.91 mi (8,125.43 km) |
| Smithville to Osowa | 4,844.23 mi (7,796.03 km) |
| Smithville to Ostroda | 4,922.95 mi (7,922.72 km) |
| Smithville to Ostroleka | 5,001.08 mi (8,048.47 km) |
| Smithville to Ostrow Mazowiecka | 5,023.83 mi (8,085.08 km) |
| Smithville to Ostrow Wielkopolski | 4,949.67 mi (7,965.73 km) |
| Smithville to Ostrowiec Swietokrzyski | 5,097.35 mi (8,203.39 km) |
| Smithville to Ostrzeszow | 4,964.05 mi (7,988.86 km) |
| Smithville to Oswiecim | 5,069.57 mi (8,158.68 km) |
| Smithville to Otwock | 5,036.93 mi (8,106.16 km) |
| Smithville to Ozarow Mazowiecki | 5,017.78 mi (8,075.33 km) |
| Smithville to Ozimek | 5,007.18 mi (8,058.27 km) |
| Smithville to Ozorkow | 4,981.98 mi (8,017.72 km) |
| Smithville to Pabianice | 4,999.82 mi (8,046.44 km) |
