| Americus to Olivares | 4,318.50 mi (6,949.95 km) |
| Americus to Olivenza | 4,239.57 mi (6,822.93 km) |
| Americus to Olot | 4,621.38 mi (7,437.39 km) |
| Americus to Onate | 4,367.80 mi (7,029.30 km) |
| Americus to Onda | 4,548.66 mi (7,320.36 km) |
| Americus to Onteniente | 4,562.14 mi (7,342.05 km) |
| Americus to Orihuela | 4,565.01 mi (7,346.68 km) |
| Americus to Osuna | 4,376.88 mi (7,043.91 km) |
| Americus to Ourense | 4,121.23 mi (6,632.48 km) |
| Americus to Oviedo | 4,197.18 mi (6,754.72 km) |
| Americus to Paiporta | 4,555.28 mi (7,331.02 km) |
| Americus to Pajara | 4,119.57 mi (6,629.81 km) |
| Americus to Palafolls | 4,647.74 mi (7,479.81 km) |
| Americus to Palafrugell | 4,660.38 mi (7,500.16 km) |
| Americus to Palamos | 4,660.75 mi (7,500.75 km) |
