| Halstead to Noventa Vicentina | 676.49 mi (1,088.71 km) |
| Halstead to Novi di Modena | 676.06 mi (1,088.01 km) |
| Halstead to Novi Ligure | 620.76 mi (999.02 km) |
| Halstead to Nuoro | 903.35 mi (1,453.81 km) |
| Halstead to Occhiobello | 696.47 mi (1,120.87 km) |
| Halstead to Oderzo | 685.30 mi (1,102.88 km) |
| Halstead to Oggiono | 580.54 mi (934.29 km) |
| Halstead to Olbia | 869.50 mi (1,399.33 km) |
| Halstead to Oleggio | 569.09 mi (915.86 km) |
| Halstead to Olgiate Comasco | 568.89 mi (915.54 km) |
| Halstead to Olgiate Olona | 574.56 mi (924.66 km) |
| Halstead to Omegna | 547.17 mi (880.58 km) |
| Halstead to Opera | 598.10 mi (962.54 km) |
| Halstead to Oppeano | 664.07 mi (1,068.72 km) |
| Halstead to Orbassano | 573.49 mi (922.94 km) |
