| Boulogne-Billancourt to Oberriet | 353.92 mi (569.58 km) |
| Boulogne-Billancourt to Obersiggenthal | 293.94 mi (473.05 km) |
| Boulogne-Billancourt to Oberwil | 261.24 mi (420.43 km) |
| Boulogne-Billancourt to Oberwingert | 314.15 mi (505.57 km) |
| Boulogne-Billancourt to Oftringen | 282.16 mi (454.09 km) |
| Boulogne-Billancourt to Olten | 280.51 mi (451.44 km) |
| Boulogne-Billancourt to Onex | 256.86 mi (413.38 km) |
| Boulogne-Billancourt to Opfikon | 307.25 mi (494.47 km) |
| Boulogne-Billancourt to Ostermundigen | 275.59 mi (443.51 km) |
| Boulogne-Billancourt to Payerne | 258.45 mi (415.93 km) |
| Boulogne-Billancourt to Pfaffikon | 318.35 mi (512.34 km) |
| Boulogne-Billancourt to Plan-les-Ouates | 258.24 mi (415.61 km) |
| Boulogne-Billancourt to Pratteln | 267.44 mi (430.40 km) |
| Boulogne-Billancourt to Prilly | 257.63 mi (414.61 km) |
| Boulogne-Billancourt to Pully | 260.80 mi (419.72 km) |
