| Pikesville to Nyon | 4,030.37 mi (6,486.25 km) |
| Pikesville to Oberriet | 4,142.90 mi (6,667.35 km) |
| Pikesville to Obersiggenthal | 4,084.34 mi (6,573.12 km) |
| Pikesville to Oberwil | 4,052.60 mi (6,522.03 km) |
| Pikesville to Oberwingert | 4,103.37 mi (6,603.74 km) |
| Pikesville to Oftringen | 4,073.77 mi (6,556.10 km) |
| Pikesville to Olten | 4,072.06 mi (6,553.34 km) |
| Pikesville to Onex | 4,030.63 mi (6,486.67 km) |
| Pikesville to Opfikon | 4,097.48 mi (6,594.26 km) |
| Pikesville to Ostermundigen | 4,066.72 mi (6,544.75 km) |
| Pikesville to Payerne | 4,047.28 mi (6,513.47 km) |
| Pikesville to Pfaffikon | 4,108.60 mi (6,612.16 km) |
| Pikesville to Plan-les-Ouates | 4,031.85 mi (6,488.63 km) |
| Pikesville to Pratteln | 4,058.61 mi (6,531.70 km) |
| Pikesville to Prilly | 4,041.59 mi (6,504.31 km) |
