| Horizon City to Noventa Vicentina | 5,843.19 mi (9,403.71 km) |
| Horizon City to Novi di Modena | 5,837.32 mi (9,394.27 km) |
| Horizon City to Novi Ligure | 5,763.55 mi (9,275.53 km) |
| Horizon City to Nuoro | 5,979.91 mi (9,623.73 km) |
| Horizon City to Occhiobello | 5,861.31 mi (9,432.86 km) |
| Horizon City to Oderzo | 5,855.56 mi (9,423.62 km) |
| Horizon City to Oggiono | 5,740.10 mi (9,237.80 km) |
| Horizon City to Olbia | 5,960.12 mi (9,591.89 km) |
| Horizon City to Oleggio | 5,721.24 mi (9,207.45 km) |
| Horizon City to Olgiate Comasco | 5,725.79 mi (9,214.76 km) |
| Horizon City to Olgiate Olona | 5,729.19 mi (9,220.25 km) |
| Horizon City to Omegna | 5,700.70 mi (9,174.39 km) |
| Horizon City to Opera | 5,752.62 mi (9,257.95 km) |
| Horizon City to Oppeano | 5,829.54 mi (9,381.74 km) |
| Horizon City to Orbassano | 5,705.09 mi (9,181.46 km) |
