| Southend to Nyon | 435.85 mi (701.44 km) |
| Southend to Oberriet | 493.34 mi (793.95 km) |
| Southend to Obersiggenthal | 440.61 mi (709.09 km) |
| Southend to Oberwil | 414.40 mi (666.91 km) |
| Southend to Oberwingert | 455.90 mi (733.70 km) |
| Southend to Oftringen | 435.99 mi (701.66 km) |
| Southend to Olten | 433.82 mi (698.16 km) |
| Southend to Onex | 444.15 mi (714.79 km) |
| Southend to Opfikon | 452.61 mi (728.40 km) |
| Southend to Ostermundigen | 440.41 mi (708.77 km) |
| Southend to Payerne | 430.90 mi (693.47 km) |
| Southend to Pfaffikon | 463.23 mi (745.50 km) |
| Southend to Plan-les-Ouates | 445.54 mi (717.03 km) |
| Southend to Pratteln | 419.08 mi (674.45 km) |
| Southend to Prilly | 437.09 mi (703.43 km) |
