| Naperville to Noventa Vicentina | 4,655.10 mi (7,491.65 km) |
| Naperville to Novi di Modena | 4,646.73 mi (7,478.19 km) |
| Naperville to Novi Ligure | 4,568.85 mi (7,352.85 km) |
| Naperville to Nuoro | 4,775.05 mi (7,684.70 km) |
| Naperville to Occhiobello | 4,672.08 mi (7,518.99 km) |
| Naperville to Oderzo | 4,671.16 mi (7,517.50 km) |
| Naperville to Oggiono | 4,549.62 mi (7,321.90 km) |
| Naperville to Olbia | 4,756.68 mi (7,655.14 km) |
| Naperville to Oleggio | 4,528.91 mi (7,288.57 km) |
| Naperville to Olgiate Comasco | 4,534.62 mi (7,297.77 km) |
| Naperville to Olgiate Olona | 4,537.39 mi (7,302.23 km) |
| Naperville to Omegna | 4,508.88 mi (7,256.33 km) |
| Naperville to Opera | 4,560.59 mi (7,339.56 km) |
| Naperville to Oppeano | 4,640.83 mi (7,468.69 km) |
| Naperville to Orbassano | 4,509.14 mi (7,256.76 km) |
