| Bethesda to Nuth | 3,922.15 mi (6,312.09 km) |
| Bethesda to Oegstgeest | 3,833.05 mi (6,168.70 km) |
| Bethesda to Oirschot | 3,883.46 mi (6,249.83 km) |
| Bethesda to Oisterwijk | 3,877.33 mi (6,239.95 km) |
| Bethesda to Oldebroek | 3,882.68 mi (6,248.56 km) |
| Bethesda to Oldenzaal | 3,926.51 mi (6,319.10 km) |
| Bethesda to Ommen | 3,901.12 mi (6,278.25 km) |
| Bethesda to Oosterend | 3,875.02 mi (6,236.24 km) |
| Bethesda to Oosterhout | 3,862.12 mi (6,215.49 km) |
| Bethesda to Oosterwolde | 3,884.05 mi (6,250.78 km) |
| Bethesda to Oostzaan | 3,843.25 mi (6,185.11 km) |
| Bethesda to Opmeer | 3,839.23 mi (6,178.65 km) |
| Bethesda to Oss | 3,885.18 mi (6,252.59 km) |
| Bethesda to Oud-Beijerland | 3,839.54 mi (6,179.14 km) |
| Bethesda to Oudenbosch | 3,850.20 mi (6,196.30 km) |
