| Holtsville to Noventa Vicentina | 4,077.83 mi (6,562.63 km) |
| Holtsville to Novi di Modena | 4,063.53 mi (6,539.63 km) |
| Holtsville to Novi Ligure | 3,976.25 mi (6,399.16 km) |
| Holtsville to Nuoro | 4,148.25 mi (6,675.96 km) |
| Holtsville to Occhiobello | 4,091.84 mi (6,585.18 km) |
| Holtsville to Oderzo | 4,102.13 mi (6,601.75 km) |
| Holtsville to Oggiono | 3,968.25 mi (6,386.27 km) |
| Holtsville to Olbia | 4,135.16 mi (6,654.90 km) |
| Holtsville to Oleggio | 3,943.16 mi (6,345.91 km) |
| Holtsville to Olgiate Comasco | 3,951.79 mi (6,359.79 km) |
| Holtsville to Olgiate Olona | 3,952.90 mi (6,361.57 km) |
| Holtsville to Omegna | 3,924.78 mi (6,316.32 km) |
| Holtsville to Opera | 3,975.14 mi (6,397.37 km) |
| Holtsville to Oppeano | 4,062.31 mi (6,537.66 km) |
| Holtsville to Orbassano | 3,914.01 mi (6,298.98 km) |
