| Oregon to Nuth | 4,046.51 mi (6,512.22 km) |
| Oregon to Oegstgeest | 3,951.60 mi (6,359.48 km) |
| Oregon to Oirschot | 4,005.07 mi (6,445.53 km) |
| Oregon to Oisterwijk | 3,998.56 mi (6,435.07 km) |
| Oregon to Oldebroek | 3,996.64 mi (6,431.97 km) |
| Oregon to Oldenzaal | 4,039.35 mi (6,500.70 km) |
| Oregon to Ommen | 4,013.62 mi (6,459.30 km) |
| Oregon to Oosterend | 3,984.86 mi (6,413.01 km) |
| Oregon to Oosterhout | 3,983.62 mi (6,411.02 km) |
| Oregon to Oosterwolde | 3,993.56 mi (6,427.01 km) |
| Oregon to Oostzaan | 3,959.28 mi (6,371.84 km) |
| Oregon to Opmeer | 3,953.29 mi (6,362.20 km) |
| Oregon to Oss | 4,004.55 mi (6,444.70 km) |
| Oregon to Oud-Beijerland | 3,960.74 mi (6,374.19 km) |
| Oregon to Oudenbosch | 3,972.72 mi (6,393.48 km) |
