| North Valley to Opole | 5,615.57 mi (9,037.39 km) |
| North Valley to Orzesze | 5,666.20 mi (9,118.86 km) |
| North Valley to Osowa | 5,440.79 mi (8,756.10 km) |
| North Valley to Ostroda | 5,518.79 mi (8,881.64 km) |
| North Valley to Ostroleka | 5,595.14 mi (9,004.51 km) |
| North Valley to Ostrow Mazowiecka | 5,618.17 mi (9,041.57 km) |
| North Valley to Ostrow Wielkopolski | 5,562.48 mi (8,951.95 km) |
| North Valley to Ostrowiec Swietokrzyski | 5,702.56 mi (9,177.39 km) |
| North Valley to Ostrzeszow | 5,577.66 mi (8,976.37 km) |
| North Valley to Oswiecim | 5,685.95 mi (9,150.65 km) |
| North Valley to Otwock | 5,636.75 mi (9,071.47 km) |
| North Valley to Ozarow Mazowiecki | 5,618.58 mi (9,042.23 km) |
| North Valley to Ozimek | 5,623.58 mi (9,050.28 km) |
| North Valley to Ozorkow | 5,588.77 mi (8,994.26 km) |
| North Valley to Pabianice | 5,607.88 mi (9,025.01 km) |
