| Glen Ellyn to Noventa Vicentina | 4,645.71 mi (7,476.54 km) |
| Glen Ellyn to Novi di Modena | 4,637.37 mi (7,463.12 km) |
| Glen Ellyn to Novi Ligure | 4,559.54 mi (7,337.87 km) |
| Glen Ellyn to Nuoro | 4,765.95 mi (7,670.05 km) |
| Glen Ellyn to Occhiobello | 4,662.71 mi (7,503.90 km) |
| Glen Ellyn to Oderzo | 4,661.72 mi (7,502.32 km) |
| Glen Ellyn to Oggiono | 4,540.25 mi (7,306.83 km) |
| Glen Ellyn to Olbia | 4,747.54 mi (7,640.43 km) |
| Glen Ellyn to Oleggio | 4,519.57 mi (7,273.54 km) |
| Glen Ellyn to Olgiate Comasco | 4,525.27 mi (7,282.72 km) |
| Glen Ellyn to Olgiate Olona | 4,528.05 mi (7,287.19 km) |
| Glen Ellyn to Omegna | 4,499.53 mi (7,241.29 km) |
| Glen Ellyn to Opera | 4,551.25 mi (7,324.52 km) |
| Glen Ellyn to Oppeano | 4,631.45 mi (7,453.59 km) |
| Glen Ellyn to Orbassano | 4,499.85 mi (7,241.82 km) |
