| Delaware to Oliveira de Frades | 3,805.36 mi (6,124.13 km) |
| Delaware to Oliveira do Bairro | 3,796.51 mi (6,109.90 km) |
| Delaware to Oliveira do Hospital | 3,831.40 mi (6,166.05 km) |
| Delaware to Ourem | 3,819.91 mi (6,147.55 km) |
| Delaware to Ovar | 3,779.66 mi (6,082.77 km) |
| Delaware to Pacos de Ferreira | 3,778.62 mi (6,081.10 km) |
| Delaware to Palmela | 3,837.77 mi (6,176.30 km) |
| Delaware to Paredes | 3,783.74 mi (6,089.34 km) |
| Delaware to Paredes de Coura | 3,751.91 mi (6,038.11 km) |
| Delaware to Penacova | 3,814.25 mi (6,138.44 km) |
| Delaware to Penafiel | 3,785.87 mi (6,092.76 km) |
| Delaware to Peniche | 3,791.00 mi (6,101.02 km) |
| Delaware to Peso da Regua | 3,810.85 mi (6,132.97 km) |
| Delaware to Pinhal Novo | 3,835.08 mi (6,171.96 km) |
| Delaware to Pinhel | 3,855.72 mi (6,205.19 km) |
