| Hilliard to Noventa Vicentina | 4,532.81 mi (7,294.85 km) |
| Hilliard to Novi di Modena | 4,521.60 mi (7,276.81 km) |
| Hilliard to Novi Ligure | 4,439.00 mi (7,143.88 km) |
| Hilliard to Nuoro | 4,628.86 mi (7,449.43 km) |
| Hilliard to Occhiobello | 4,548.43 mi (7,319.99 km) |
| Hilliard to Oderzo | 4,552.80 mi (7,327.02 km) |
| Hilliard to Oggiono | 4,425.08 mi (7,121.47 km) |
| Hilliard to Olbia | 4,613.11 mi (7,424.08 km) |
| Hilliard to Oleggio | 4,402.23 mi (7,084.70 km) |
| Hilliard to Olgiate Comasco | 4,409.35 mi (7,096.16 km) |
| Hilliard to Olgiate Olona | 4,411.33 mi (7,099.36 km) |
| Hilliard to Omegna | 4,382.92 mi (7,053.63 km) |
| Hilliard to Opera | 4,434.14 mi (7,136.06 km) |
| Hilliard to Oppeano | 4,517.91 mi (7,270.87 km) |
| Hilliard to Orbassano | 4,377.91 mi (7,045.56 km) |
