| Harstad to Noventa Vicentina | 1,634.54 mi (2,630.54 km) |
| Harstad to Novi di Modena | 1,663.95 mi (2,677.86 km) |
| Harstad to Novi Ligure | 1,683.83 mi (2,709.86 km) |
| Harstad to Nuoro | 1,986.11 mi (3,196.33 km) |
| Harstad to Occhiobello | 1,659.28 mi (2,670.35 km) |
| Harstad to Oderzo | 1,596.92 mi (2,569.99 km) |
| Harstad to Oggiono | 1,610.36 mi (2,591.62 km) |
| Harstad to Olbia | 1,944.01 mi (3,128.58 km) |
| Harstad to Oleggio | 1,627.06 mi (2,618.51 km) |
| Harstad to Olgiate Comasco | 1,612.52 mi (2,595.11 km) |
| Harstad to Olgiate Olona | 1,623.30 mi (2,612.45 km) |
| Harstad to Omegna | 1,609.39 mi (2,590.07 km) |
| Harstad to Opera | 1,638.55 mi (2,636.99 km) |
| Harstad to Oppeano | 1,634.78 mi (2,630.92 km) |
| Harstad to Orbassano | 1,674.66 mi (2,695.10 km) |
