| Cities | Distance |
|---|---|
| Harnes to Oria | 987.25 mi (1,588.82 km) |
| Harnes to Oristano | 778.49 mi (1,252.86 km) |
| Harnes to Orta Nova | 878.45 mi (1,413.73 km) |
| Harnes to Orte | 711.58 mi (1,145.18 km) |
| Harnes to Ortona | 781.11 mi (1,257.07 km) |
| Harnes to Orvieto | 688.91 mi (1,108.70 km) |
| Harnes to Orzinuovi | 476.43 mi (766.74 km) |
| Harnes to Osimo | 691.66 mi (1,113.12 km) |
| Harnes to Ospitaletto | 472.81 mi (760.92 km) |
| Harnes to Ostuni | 973.40 mi (1,566.54 km) |
| Harnes to Ottaviano | 865.06 mi (1,392.18 km) |
| Harnes to Ovada | 481.97 mi (775.65 km) |
| Harnes to Ozieri | 741.85 mi (1,193.90 km) |
| Harnes to Paceco | 982.72 mi (1,581.53 km) |
| Harnes to Pachino | 1,124.68 mi (1,810.00 km) |