| Somerset to Nyon | 3,890.59 mi (6,261.30 km) |
| Somerset to Oberriet | 4,003.43 mi (6,442.90 km) |
| Somerset to Obersiggenthal | 3,944.82 mi (6,348.58 km) |
| Somerset to Oberwil | 3,913.04 mi (6,297.43 km) |
| Somerset to Oberwingert | 3,963.89 mi (6,379.26 km) |
| Somerset to Oftringen | 3,934.20 mi (6,331.48 km) |
| Somerset to Olten | 3,932.49 mi (6,328.73 km) |
| Somerset to Onex | 3,890.83 mi (6,261.68 km) |
| Somerset to Opfikon | 3,957.97 mi (6,369.74 km) |
| Somerset to Ostermundigen | 3,927.06 mi (6,320.00 km) |
| Somerset to Payerne | 3,907.58 mi (6,288.65 km) |
| Somerset to Pfaffikon | 3,969.09 mi (6,387.63 km) |
| Somerset to Plan-les-Ouates | 3,892.04 mi (6,263.64 km) |
| Somerset to Pratteln | 3,919.06 mi (6,307.11 km) |
| Somerset to Prilly | 3,901.84 mi (6,279.40 km) |
