| Gilbert to Oliveira de Frades | 5,382.09 mi (8,661.64 km) |
| Gilbert to Oliveira do Bairro | 5,375.96 mi (8,651.76 km) |
| Gilbert to Oliveira do Hospital | 5,409.87 mi (8,706.34 km) |
| Gilbert to Ourem | 5,406.27 mi (8,700.56 km) |
| Gilbert to Ovar | 5,356.76 mi (8,620.87 km) |
| Gilbert to Pacos de Ferreira | 5,351.61 mi (8,612.58 km) |
| Gilbert to Palmela | 5,433.05 mi (8,743.64 km) |
| Gilbert to Paredes | 5,357.04 mi (8,621.33 km) |
| Gilbert to Paredes de Coura | 5,319.99 mi (8,561.70 km) |
| Gilbert to Penacova | 5,394.88 mi (8,682.23 km) |
| Gilbert to Penafiel | 5,358.95 mi (8,624.39 km) |
| Gilbert to Peniche | 5,382.21 mi (8,661.84 km) |
| Gilbert to Peso da Regua | 5,382.44 mi (8,662.20 km) |
| Gilbert to Pinhal Novo | 5,429.95 mi (8,738.66 km) |
| Gilbert to Pinhel | 5,427.90 mi (8,735.36 km) |
