| Prairie Ridge to Opole | 5,273.61 mi (8,487.05 km) |
| Prairie Ridge to Orzesze | 5,321.58 mi (8,564.25 km) |
| Prairie Ridge to Osowa | 5,051.74 mi (8,130.00 km) |
| Prairie Ridge to Ostroda | 5,123.65 mi (8,245.71 km) |
| Prairie Ridge to Ostroleka | 5,191.29 mi (8,354.58 km) |
| Prairie Ridge to Ostrow Mazowiecka | 5,213.82 mi (8,390.83 km) |
| Prairie Ridge to Ostrow Wielkopolski | 5,210.72 mi (8,385.84 km) |
| Prairie Ridge to Ostrowiec Swietokrzyski | 5,322.42 mi (8,565.60 km) |
| Prairie Ridge to Ostrzeszow | 5,227.33 mi (8,412.57 km) |
| Prairie Ridge to Oswiecim | 5,337.68 mi (8,590.16 km) |
| Prairie Ridge to Otwock | 5,245.69 mi (8,442.12 km) |
| Prairie Ridge to Ozarow Mazowiecki | 5,231.10 mi (8,418.65 km) |
| Prairie Ridge to Ozimek | 5,278.70 mi (8,495.25 km) |
| Prairie Ridge to Ozorkow | 5,218.98 mi (8,399.13 km) |
| Prairie Ridge to Pabianice | 5,240.52 mi (8,433.81 km) |
