| Amarillo to Olivares | 5,070.25 mi (8,159.78 km) |
| Amarillo to Olivenza | 4,980.29 mi (8,015.01 km) |
| Amarillo to Olot | 5,270.03 mi (8,481.29 km) |
| Amarillo to Onate | 5,030.25 mi (8,095.41 km) |
| Amarillo to Onda | 5,240.06 mi (8,433.06 km) |
| Amarillo to Onteniente | 5,269.41 mi (8,480.29 km) |
| Amarillo to Orihuela | 5,282.98 mi (8,502.14 km) |
| Amarillo to Osuna | 5,125.82 mi (8,249.21 km) |
| Amarillo to Ourense | 4,818.07 mi (7,753.93 km) |
| Amarillo to Oviedo | 4,871.16 mi (7,839.38 km) |
| Amarillo to Paiporta | 5,254.13 mi (8,455.71 km) |
| Amarillo to Pajara | 5,003.16 mi (8,051.81 km) |
| Amarillo to Palafolls | 5,301.57 mi (8,532.05 km) |
| Amarillo to Palafrugell | 5,308.80 mi (8,543.68 km) |
| Amarillo to Palamos | 5,310.27 mi (8,546.05 km) |
