| Humacao to Nasaud | 5,314.55 mi (8,552.94 km) |
| Humacao to Navodari | 5,561.76 mi (8,950.78 km) |
| Humacao to Negresti-Oas | 5,261.19 mi (8,467.06 km) |
| Humacao to Nehoiu | 5,433.87 mi (8,744.98 km) |
| Humacao to Ocna Mures | 5,302.81 mi (8,534.04 km) |
| Humacao to Odobesti | 5,462.31 mi (8,790.74 km) |
| Humacao to Odorheiu Secuiesc | 5,370.98 mi (8,643.75 km) |
| Humacao to Oltenita | 5,471.75 mi (8,805.93 km) |
| Humacao to Onesti | 5,439.88 mi (8,754.64 km) |
| Humacao to Oradea | 5,203.30 mi (8,373.91 km) |
| Humacao to Orastie | 5,279.92 mi (8,497.20 km) |
| Humacao to Oravita | 5,219.46 mi (8,399.91 km) |
| Humacao to Orsova | 5,257.93 mi (8,461.82 km) |
| Humacao to Otelu Rosu | 5,244.65 mi (8,440.44 km) |
| Humacao to Otopeni | 5,436.55 mi (8,749.29 km) |
