| Pecos to Oerlinghausen | 5,373.76 mi (8,648.23 km) |
| Pecos to Oestrich-Winkel | 5,430.09 mi (8,738.89 km) |
| Pecos to Offenburg | 5,489.92 mi (8,835.17 km) |
| Pecos to Oftersheim | 5,476.85 mi (8,814.14 km) |
| Pecos to Ohrdruf | 5,492.20 mi (8,838.85 km) |
| Pecos to Ohringen | 5,516.96 mi (8,878.69 km) |
| Pecos to Olbernhau | 5,588.01 mi (8,993.03 km) |
| Pecos to Olching | 5,624.76 mi (9,052.17 km) |
| Pecos to Oldenburg | 5,310.79 mi (8,546.89 km) |
| Pecos to Oldenburg in Holstein | 5,351.34 mi (8,612.15 km) |
| Pecos to Olfen | 5,339.27 mi (8,592.72 km) |
| Pecos to Olpe | 5,383.10 mi (8,663.26 km) |
| Pecos to Olsberg | 5,392.46 mi (8,678.32 km) |
| Pecos to Oranienburg | 5,493.34 mi (8,840.67 km) |
| Pecos to Ortenberg | 5,453.23 mi (8,776.12 km) |
