| Slidell to Nyon | 5,000.94 mi (8,048.24 km) |
| Slidell to Oberriet | 5,112.82 mi (8,228.29 km) |
| Slidell to Obersiggenthal | 5,054.42 mi (8,134.30 km) |
| Slidell to Oberwil | 5,022.78 mi (8,083.39 km) |
| Slidell to Oberwingert | 5,073.34 mi (8,164.75 km) |
| Slidell to Oftringen | 5,043.99 mi (8,117.52 km) |
| Slidell to Olten | 5,042.26 mi (8,114.74 km) |
| Slidell to Onex | 5,001.20 mi (8,048.65 km) |
| Slidell to Opfikon | 5,067.54 mi (8,155.41 km) |
| Slidell to Ostermundigen | 5,037.13 mi (8,106.48 km) |
| Slidell to Payerne | 5,017.78 mi (8,075.34 km) |
| Slidell to Pfaffikon | 5,078.65 mi (8,173.30 km) |
| Slidell to Plan-les-Ouates | 5,002.42 mi (8,050.61 km) |
| Slidell to Pratteln | 5,028.77 mi (8,093.02 km) |
| Slidell to Prilly | 5,012.15 mi (8,066.27 km) |
