| Boone to Opole | 4,710.96 mi (7,581.56 km) |
| Boone to Orzesze | 4,760.25 mi (7,660.88 km) |
| Boone to Osowa | 4,598.39 mi (7,400.39 km) |
| Boone to Ostroda | 4,676.19 mi (7,525.60 km) |
| Boone to Ostroleka | 4,755.29 mi (7,652.90 km) |
| Boone to Ostrow Mazowiecka | 4,776.94 mi (7,687.74 km) |
| Boone to Ostrow Wielkopolski | 4,671.82 mi (7,518.57 km) |
| Boone to Ostrowiec Swietokrzyski | 4,829.41 mi (7,772.18 km) |
| Boone to Ostrzeszow | 4,684.35 mi (7,538.73 km) |
| Boone to Oswiecim | 4,782.08 mi (7,696.01 km) |
| Boone to Otwock | 4,780.12 mi (7,692.86 km) |
| Boone to Ozarow Mazowiecki | 4,759.73 mi (7,660.05 km) |
| Boone to Ozimek | 4,721.22 mi (7,598.07 km) |
| Boone to Ozorkow | 4,714.22 mi (7,586.80 km) |
| Boone to Pabianice | 4,729.31 mi (7,611.09 km) |
