| Illingen to Oberriet | 183.24 mi (294.90 km) |
| Illingen to Obersiggenthal | 142.38 mi (229.14 km) |
| Illingen to Oberwil | 130.75 mi (210.43 km) |
| Illingen to Oberwingert | 150.64 mi (242.42 km) |
| Illingen to Oftringen | 147.74 mi (237.76 km) |
| Illingen to Olten | 145.31 mi (233.86 km) |
| Illingen to Onex | 225.01 mi (362.11 km) |
| Illingen to Opfikon | 151.15 mi (243.25 km) |
| Illingen to Ostermundigen | 168.51 mi (271.19 km) |
| Illingen to Payerne | 176.94 mi (284.76 km) |
| Illingen to Pfaffikon | 159.96 mi (257.44 km) |
| Illingen to Plan-les-Ouates | 225.98 mi (363.68 km) |
| Illingen to Pratteln | 131.87 mi (212.23 km) |
| Illingen to Prilly | 197.55 mi (317.93 km) |
| Illingen to Pully | 198.39 mi (319.28 km) |
