| Oskaloosa to Opole | 4,832.15 mi (7,776.59 km) |
| Oskaloosa to Orzesze | 4,882.75 mi (7,858.03 km) |
| Oskaloosa to Osowa | 4,678.22 mi (7,528.86 km) |
| Oskaloosa to Ostroda | 4,756.94 mi (7,655.56 km) |
| Oskaloosa to Ostroleka | 4,835.10 mi (7,781.35 km) |
| Oskaloosa to Ostrow Mazowiecka | 4,857.84 mi (7,817.94 km) |
| Oskaloosa to Ostrow Wielkopolski | 4,783.50 mi (7,698.30 km) |
| Oskaloosa to Ostrowiec Swietokrzyski | 4,931.21 mi (7,936.01 km) |
| Oskaloosa to Ostrzeszow | 4,797.88 mi (7,721.44 km) |
| Oskaloosa to Oswiecim | 4,903.41 mi (7,891.28 km) |
| Oskaloosa to Otwock | 4,870.85 mi (7,838.88 km) |
| Oskaloosa to Ozarow Mazowiecki | 4,851.68 mi (7,808.03 km) |
| Oskaloosa to Ozimek | 4,841.02 mi (7,790.87 km) |
| Oskaloosa to Ozorkow | 4,815.83 mi (7,750.33 km) |
| Oskaloosa to Pabianice | 4,833.66 mi (7,779.03 km) |
