| Halawa to Orbetello | 7,973.42 mi (12,831.98 km) |
| Halawa to Oria | 8,152.06 mi (13,119.47 km) |
| Halawa to Oristano | 8,114.25 mi (13,058.63 km) |
| Halawa to Orta Nova | 8,085.01 mi (13,011.57 km) |
| Halawa to Orte | 7,983.02 mi (12,847.42 km) |
| Halawa to Ortona | 8,006.58 mi (12,885.35 km) |
| Halawa to Orvieto | 7,963.00 mi (12,815.21 km) |
| Halawa to Orzinuovi | 7,760.20 mi (12,488.84 km) |
| Halawa to Osimo | 7,922.36 mi (12,749.80 km) |
| Halawa to Ospitaletto | 7,751.14 mi (12,474.26 km) |
| Halawa to Ostuni | 8,135.78 mi (13,093.27 km) |
| Halawa to Ottaviano | 8,109.78 mi (13,051.43 km) |
| Halawa to Ovada | 7,797.41 mi (12,548.71 km) |
| Halawa to Ozieri | 8,073.93 mi (12,993.74 km) |
| Halawa to Paceco | 8,289.05 mi (13,339.94 km) |
