| Amarillo to Oliveira de Frades | 4,859.38 mi (7,820.41 km) |
| Amarillo to Oliveira do Bairro | 4,851.88 mi (7,808.35 km) |
| Amarillo to Oliveira do Hospital | 4,886.36 mi (7,863.83 km) |
| Amarillo to Ourem | 4,878.78 mi (7,851.64 km) |
| Amarillo to Ovar | 4,833.80 mi (7,779.25 km) |
| Amarillo to Pacos de Ferreira | 4,830.66 mi (7,774.19 km) |
| Amarillo to Palmela | 4,901.00 mi (7,887.41 km) |
| Amarillo to Paredes | 4,835.95 mi (7,782.71 km) |
| Amarillo to Paredes de Coura | 4,801.34 mi (7,727.01 km) |
| Amarillo to Penacova | 4,870.26 mi (7,837.92 km) |
| Amarillo to Penafiel | 4,837.97 mi (7,785.96 km) |
| Amarillo to Peniche | 4,852.19 mi (7,808.85 km) |
| Amarillo to Peso da Regua | 4,862.25 mi (7,825.03 km) |
| Amarillo to Pinhal Novo | 4,898.11 mi (7,882.75 km) |
| Amarillo to Pinhel | 4,907.53 mi (7,897.90 km) |
