| Onalaska to Noventa Vicentina | 4,671.90 mi (7,518.70 km) |
| Onalaska to Novi di Modena | 4,665.88 mi (7,509.01 km) |
| Onalaska to Novi Ligure | 4,592.16 mi (7,390.37 km) |
| Onalaska to Nuoro | 4,811.23 mi (7,742.93 km) |
| Onalaska to Occhiobello | 4,689.94 mi (7,547.72 km) |
| Onalaska to Oderzo | 4,684.71 mi (7,539.31 km) |
| Onalaska to Oggiono | 4,568.66 mi (7,352.54 km) |
| Onalaska to Olbia | 4,790.72 mi (7,709.92 km) |
| Onalaska to Oleggio | 4,549.78 mi (7,322.16 km) |
| Onalaska to Olgiate Comasco | 4,554.33 mi (7,329.48 km) |
| Onalaska to Olgiate Olona | 4,557.72 mi (7,334.95 km) |
| Onalaska to Omegna | 4,529.23 mi (7,289.09 km) |
| Onalaska to Opera | 4,581.15 mi (7,372.65 km) |
| Onalaska to Oppeano | 4,658.20 mi (7,496.66 km) |
| Onalaska to Orbassano | 4,533.83 mi (7,296.49 km) |
