| Big Spring to Opole | 5,625.05 mi (9,052.65 km) |
| Big Spring to Orzesze | 5,675.67 mi (9,134.11 km) |
| Big Spring to Osowa | 5,468.74 mi (8,801.08 km) |
| Big Spring to Ostroda | 5,547.41 mi (8,927.70 km) |
| Big Spring to Ostroleka | 5,625.34 mi (9,053.12 km) |
| Big Spring to Ostrow Mazowiecka | 5,648.15 mi (9,089.82 km) |
| Big Spring to Ostrow Wielkopolski | 5,576.08 mi (8,973.83 km) |
| Big Spring to Ostrowiec Swietokrzyski | 5,723.10 mi (9,210.44 km) |
| Big Spring to Ostrzeszow | 5,590.52 mi (8,997.08 km) |
| Big Spring to Oswiecim | 5,696.28 mi (9,167.28 km) |
| Big Spring to Otwock | 5,662.01 mi (9,112.13 km) |
| Big Spring to Ozarow Mazowiecki | 5,642.97 mi (9,081.48 km) |
| Big Spring to Ozimek | 5,633.87 mi (9,066.84 km) |
| Big Spring to Ozorkow | 5,607.84 mi (9,024.95 km) |
| Big Spring to Pabianice | 5,625.82 mi (9,053.88 km) |
