| Arecibo to Oerlinghausen | 4,604.27 mi (7,409.86 km) |
| Arecibo to Oestrich-Winkel | 4,576.67 mi (7,365.43 km) |
| Arecibo to Offenburg | 4,575.64 mi (7,363.78 km) |
| Arecibo to Oftersheim | 4,603.65 mi (7,408.85 km) |
| Arecibo to Ohrdruf | 4,695.31 mi (7,556.37 km) |
| Arecibo to Ohringen | 4,645.26 mi (7,475.82 km) |
| Arecibo to Olbernhau | 4,809.46 mi (7,740.08 km) |
| Arecibo to Olching | 4,731.73 mi (7,614.98 km) |
| Arecibo to Oldenburg | 4,585.27 mi (7,379.28 km) |
| Arecibo to Oldenburg in Holstein | 4,693.88 mi (7,554.06 km) |
| Arecibo to Olfen | 4,549.48 mi (7,321.67 km) |
| Arecibo to Olpe | 4,568.76 mi (7,352.71 km) |
| Arecibo to Olsberg | 4,596.77 mi (7,397.78 km) |
| Arecibo to Oranienburg | 4,795.01 mi (7,716.83 km) |
| Arecibo to Ortenberg | 4,622.89 mi (7,439.82 km) |
