| The Dalles to Opole | 5,350.70 mi (8,611.12 km) |
| The Dalles to Orzesze | 5,399.02 mi (8,688.89 km) |
| The Dalles to Osowa | 5,131.93 mi (8,259.04 km) |
| The Dalles to Ostroda | 5,204.52 mi (8,375.86 km) |
| The Dalles to Ostroleka | 5,273.03 mi (8,486.12 km) |
| The Dalles to Ostrow Mazowiecka | 5,295.66 mi (8,522.54 km) |
| The Dalles to Ostrow Wielkopolski | 5,288.41 mi (8,510.87 km) |
| The Dalles to Ostrowiec Swietokrzyski | 5,402.67 mi (8,694.76 km) |
| The Dalles to Ostrzeszow | 5,304.96 mi (8,537.50 km) |
| The Dalles to Oswiecim | 5,415.46 mi (8,715.34 km) |
| The Dalles to Otwock | 5,326.58 mi (8,572.31 km) |
| The Dalles to Ozarow Mazowiecki | 5,311.68 mi (8,548.32 km) |
| The Dalles to Ozimek | 5,356.04 mi (8,619.72 km) |
| The Dalles to Ozorkow | 5,298.13 mi (8,526.51 km) |
| The Dalles to Pabianice | 5,319.54 mi (8,560.98 km) |
