| Callaway to Nyon | 4,824.71 mi (7,764.62 km) |
| Callaway to Oberriet | 4,942.72 mi (7,954.53 km) |
| Callaway to Obersiggenthal | 4,883.56 mi (7,859.33 km) |
| Callaway to Oberwil | 4,851.28 mi (7,807.39 km) |
| Callaway to Oberwingert | 4,903.04 mi (7,890.68 km) |
| Callaway to Oftringen | 4,872.24 mi (7,841.11 km) |
| Callaway to Olten | 4,870.60 mi (7,838.47 km) |
| Callaway to Onex | 4,824.24 mi (7,763.86 km) |
| Callaway to Opfikon | 4,896.78 mi (7,880.61 km) |
| Callaway to Ostermundigen | 4,863.85 mi (7,827.61 km) |
| Callaway to Payerne | 4,843.54 mi (7,794.92 km) |
| Callaway to Pfaffikon | 4,907.91 mi (7,898.52 km) |
| Callaway to Plan-les-Ouates | 4,825.42 mi (7,765.76 km) |
| Callaway to Pratteln | 4,857.42 mi (7,817.26 km) |
| Callaway to Prilly | 4,836.72 mi (7,783.95 km) |
