| Severn to Nyon | 4,040.53 mi (6,502.60 km) |
| Severn to Oberriet | 4,153.59 mi (6,684.55 km) |
| Severn to Obersiggenthal | 4,094.97 mi (6,590.21 km) |
| Severn to Oberwil | 4,063.16 mi (6,539.03 km) |
| Severn to Oberwingert | 4,114.04 mi (6,620.91 km) |
| Severn to Oftringen | 4,084.32 mi (6,573.07 km) |
| Severn to Olten | 4,082.61 mi (6,570.33 km) |
| Severn to Onex | 4,040.72 mi (6,502.91 km) |
| Severn to Opfikon | 4,108.12 mi (6,611.37 km) |
| Severn to Ostermundigen | 4,077.13 mi (6,561.51 km) |
| Severn to Payerne | 4,057.62 mi (6,530.10 km) |
| Severn to Pfaffikon | 4,119.24 mi (6,629.27 km) |
| Severn to Plan-les-Ouates | 4,041.94 mi (6,504.87 km) |
| Severn to Pratteln | 4,069.19 mi (6,548.73 km) |
| Severn to Prilly | 4,051.82 mi (6,520.77 km) |
