| Katy to Nyon | 5,281.26 mi (8,499.37 km) |
| Katy to Oberriet | 5,385.01 mi (8,666.34 km) |
| Katy to Obersiggenthal | 5,327.77 mi (8,574.22 km) |
| Katy to Oberwil | 5,297.05 mi (8,524.79 km) |
| Katy to Oberwingert | 5,345.90 mi (8,603.40 km) |
| Katy to Oftringen | 5,318.51 mi (8,559.32 km) |
| Katy to Olten | 5,316.68 mi (8,556.37 km) |
| Katy to Onex | 5,282.44 mi (8,501.27 km) |
| Katy to Opfikon | 5,340.71 mi (8,595.04 km) |
| Katy to Ostermundigen | 5,313.61 mi (8,551.43 km) |
| Katy to Payerne | 5,295.54 mi (8,522.35 km) |
| Katy to Pfaffikon | 5,351.77 mi (8,612.84 km) |
| Katy to Plan-les-Ouates | 5,283.70 mi (8,503.29 km) |
| Katy to Pratteln | 5,302.83 mi (8,534.08 km) |
| Katy to Prilly | 5,291.42 mi (8,515.71 km) |
