| Douarnenez to Oberriet | 647.48 mi (1,042.02 km) |
| Douarnenez to Obersiggenthal | 586.77 mi (944.31 km) |
| Douarnenez to Oberwil | 552.46 mi (889.10 km) |
| Douarnenez to Oberwingert | 608.46 mi (979.23 km) |
| Douarnenez to Oftringen | 571.35 mi (919.50 km) |
| Douarnenez to Olten | 570.19 mi (917.63 km) |
| Douarnenez to Onex | 507.21 mi (816.27 km) |
| Douarnenez to Opfikon | 600.02 mi (965.63 km) |
| Douarnenez to Ostermundigen | 556.48 mi (895.57 km) |
| Douarnenez to Payerne | 533.05 mi (857.86 km) |
| Douarnenez to Pfaffikon | 610.76 mi (982.92 km) |
| Douarnenez to Plan-les-Ouates | 508.33 mi (818.08 km) |
| Douarnenez to Pratteln | 559.14 mi (899.84 km) |
| Douarnenez to Prilly | 522.75 mi (841.29 km) |
| Douarnenez to Pully | 526.12 mi (846.71 km) |
