| Ano Syros to Oberriet | 1,034.48 mi (1,664.84 km) |
| Ano Syros to Obersiggenthal | 1,090.25 mi (1,754.59 km) |
| Ano Syros to Oberwil | 1,120.20 mi (1,802.79 km) |
| Ano Syros to Oberwingert | 1,072.96 mi (1,726.76 km) |
| Ano Syros to Oftringen | 1,098.64 mi (1,768.08 km) |
| Ano Syros to Olten | 1,100.52 mi (1,771.12 km) |
| Ano Syros to Onex | 1,136.38 mi (1,828.83 km) |
| Ano Syros to Opfikon | 1,077.52 mi (1,734.10 km) |
| Ano Syros to Ostermundigen | 1,102.86 mi (1,774.88 km) |
| Ano Syros to Payerne | 1,121.00 mi (1,804.08 km) |
| Ano Syros to Pfaffikon | 1,066.55 mi (1,716.45 km) |
| Ano Syros to Plan-les-Ouates | 1,135.17 mi (1,826.88 km) |
| Ano Syros to Pratteln | 1,114.58 mi (1,793.74 km) |
| Ano Syros to Prilly | 1,125.74 mi (1,811.71 km) |
| Ano Syros to Pully | 1,122.40 mi (1,806.33 km) |
