| Onalaska to Nyon | 4,425.75 mi (7,122.55 km) |
| Onalaska to Oberriet | 4,509.98 mi (7,258.11 km) |
| Onalaska to Obersiggenthal | 4,455.97 mi (7,171.19 km) |
| Onalaska to Oberwil | 4,427.65 mi (7,125.62 km) |
| Onalaska to Oberwingert | 4,472.18 mi (7,197.29 km) |
| Onalaska to Oftringen | 4,449.36 mi (7,160.56 km) |
| Onalaska to Olten | 4,447.33 mi (7,157.29 km) |
| Onalaska to Onex | 4,429.08 mi (7,127.91 km) |
| Onalaska to Opfikon | 4,468.34 mi (7,191.11 km) |
| Onalaska to Ostermundigen | 4,448.84 mi (7,159.72 km) |
| Onalaska to Payerne | 4,433.91 mi (7,135.68 km) |
| Onalaska to Pfaffikon | 4,479.15 mi (7,208.49 km) |
| Onalaska to Plan-les-Ouates | 4,430.41 mi (7,130.05 km) |
| Onalaska to Pratteln | 4,432.89 mi (7,134.04 km) |
| Onalaska to Prilly | 4,433.31 mi (7,134.72 km) |
