| Key Largo to Oliveira de Frades | 4,207.49 mi (6,771.31 km) |
| Key Largo to Oliveira do Bairro | 4,193.33 mi (6,748.51 km) |
| Key Largo to Oliveira do Hospital | 4,228.19 mi (6,804.62 km) |
| Key Largo to Ourem | 4,199.70 mi (6,758.77 km) |
| Key Largo to Ovar | 4,182.61 mi (6,731.25 km) |
| Key Largo to Pacos de Ferreira | 4,190.32 mi (6,743.67 km) |
| Key Largo to Palmela | 4,194.96 mi (6,751.14 km) |
| Key Largo to Paredes | 4,194.46 mi (6,750.33 km) |
| Key Largo to Paredes de Coura | 4,175.31 mi (6,719.52 km) |
| Key Largo to Penacova | 4,207.35 mi (6,771.08 km) |
| Key Largo to Penafiel | 4,196.93 mi (6,754.30 km) |
| Key Largo to Peniche | 4,161.08 mi (6,696.61 km) |
| Key Largo to Peso da Regua | 4,223.43 mi (6,796.96 km) |
| Key Largo to Pinhal Novo | 4,193.44 mi (6,748.69 km) |
| Key Largo to Pinhel | 4,264.35 mi (6,862.80 km) |
