| Drogheda to Oberriet | 824.60 mi (1,327.06 km) |
| Drogheda to Obersiggenthal | 770.77 mi (1,240.44 km) |
| Drogheda to Oberwil | 743.16 mi (1,196.00 km) |
| Drogheda to Oberwingert | 786.77 mi (1,266.19 km) |
| Drogheda to Oftringen | 764.86 mi (1,230.93 km) |
| Drogheda to Olten | 762.78 mi (1,227.57 km) |
| Drogheda to Onex | 757.82 mi (1,219.59 km) |
| Drogheda to Opfikon | 783.05 mi (1,260.19 km) |
| Drogheda to Ostermundigen | 766.43 mi (1,233.45 km) |
| Drogheda to Payerne | 753.89 mi (1,213.27 km) |
| Drogheda to Pfaffikon | 793.81 mi (1,277.51 km) |
| Drogheda to Plan-les-Ouates | 759.20 mi (1,221.82 km) |
| Drogheda to Pratteln | 748.20 mi (1,204.11 km) |
| Drogheda to Prilly | 756.52 mi (1,217.49 km) |
| Drogheda to Pully | 759.55 mi (1,222.38 km) |
