| Americus to Nasaud | 5,395.02 mi (8,682.44 km) |
| Americus to Navodari | 5,679.51 mi (9,140.28 km) |
| Americus to Negresti-Oas | 5,334.34 mi (8,584.80 km) |
| Americus to Nehoiu | 5,546.32 mi (8,925.93 km) |
| Americus to Ocna Mures | 5,408.97 mi (8,704.89 km) |
| Americus to Odobesti | 5,558.86 mi (8,946.13 km) |
| Americus to Odorheiu Secuiesc | 5,468.23 mi (8,800.26 km) |
| Americus to Oltenita | 5,611.52 mi (9,030.88 km) |
| Americus to Onesti | 5,527.11 mi (8,895.03 km) |
| Americus to Oradea | 5,306.48 mi (8,539.96 km) |
| Americus to Orastie | 5,404.04 mi (8,696.96 km) |
| Americus to Oravita | 5,374.32 mi (8,649.13 km) |
| Americus to Orsova | 5,415.34 mi (8,715.15 km) |
| Americus to Otelu Rosu | 5,383.00 mi (8,663.10 km) |
| Americus to Otopeni | 5,569.96 mi (8,963.98 km) |
