| Wahiawa to Orbetello | 7,965.80 mi (12,819.72 km) |
| Wahiawa to Oria | 8,143.80 mi (13,106.18 km) |
| Wahiawa to Oristano | 8,107.01 mi (13,046.98 km) |
| Wahiawa to Orta Nova | 8,076.95 mi (12,998.59 km) |
| Wahiawa to Orte | 7,975.27 mi (12,834.96 km) |
| Wahiawa to Ortona | 7,998.63 mi (12,872.56 km) |
| Wahiawa to Orvieto | 7,955.28 mi (12,802.79 km) |
| Wahiawa to Orzinuovi | 7,752.63 mi (12,476.66 km) |
| Wahiawa to Osimo | 7,914.48 mi (12,737.12 km) |
| Wahiawa to Ospitaletto | 7,743.55 mi (12,462.04 km) |
| Wahiawa to Ostuni | 8,127.52 mi (13,079.98 km) |
| Wahiawa to Ottaviano | 8,101.85 mi (13,038.67 km) |
| Wahiawa to Ovada | 7,789.99 mi (12,536.77 km) |
| Wahiawa to Ozieri | 8,066.62 mi (12,981.97 km) |
| Wahiawa to Paceco | 8,281.41 mi (13,327.64 km) |
