| Western Springs to Noventa Vicentina | 4,642.34 mi (7,471.13 km) |
| Western Springs to Novi di Modena | 4,633.91 mi (7,457.56 km) |
| Western Springs to Novi Ligure | 4,555.91 mi (7,332.03 km) |
| Western Springs to Nuoro | 4,761.78 mi (7,663.34 km) |
| Western Springs to Occhiobello | 4,659.30 mi (7,498.42 km) |
| Western Springs to Oderzo | 4,658.50 mi (7,497.12 km) |
| Western Springs to Oggiono | 4,536.80 mi (7,301.28 km) |
| Western Springs to Olbia | 4,743.46 mi (7,633.87 km) |
| Western Springs to Oleggio | 4,516.04 mi (7,267.87 km) |
| Western Springs to Olgiate Comasco | 4,521.79 mi (7,277.12 km) |
| Western Springs to Olgiate Olona | 4,524.54 mi (7,281.55 km) |
| Western Springs to Omegna | 4,496.03 mi (7,235.65 km) |
| Western Springs to Opera | 4,547.73 mi (7,318.87 km) |
| Western Springs to Oppeano | 4,628.06 mi (7,448.14 km) |
| Western Springs to Orbassano | 4,496.17 mi (7,235.89 km) |
