| Middlesex to Nyon | 3,887.97 mi (6,257.09 km) |
| Middlesex to Oberriet | 4,000.67 mi (6,438.45 km) |
| Middlesex to Obersiggenthal | 3,942.08 mi (6,344.16 km) |
| Middlesex to Oberwil | 3,910.31 mi (6,293.03 km) |
| Middlesex to Oberwingert | 3,961.13 mi (6,374.82 km) |
| Middlesex to Oftringen | 3,931.47 mi (6,327.09 km) |
| Middlesex to Olten | 3,929.76 mi (6,324.34 km) |
| Middlesex to Onex | 3,888.22 mi (6,257.49 km) |
| Middlesex to Opfikon | 3,955.22 mi (6,365.32 km) |
| Middlesex to Ostermundigen | 3,924.37 mi (6,315.67 km) |
| Middlesex to Payerne | 3,904.92 mi (6,284.36 km) |
| Middlesex to Pfaffikon | 3,966.34 mi (6,383.21 km) |
| Middlesex to Plan-les-Ouates | 3,889.44 mi (6,259.45 km) |
| Middlesex to Pratteln | 3,916.33 mi (6,302.72 km) |
| Middlesex to Prilly | 3,899.20 mi (6,275.16 km) |
