| Lake Monticello to Oliveira de Frades | 3,651.29 mi (5,876.19 km) |
| Lake Monticello to Oliveira do Bairro | 3,640.88 mi (5,859.42 km) |
| Lake Monticello to Oliveira do Hospital | 3,676.06 mi (5,916.04 km) |
| Lake Monticello to Ourem | 3,659.75 mi (5,889.80 km) |
| Lake Monticello to Ovar | 3,625.60 mi (5,834.83 km) |
| Lake Monticello to Pacos de Ferreira | 3,627.03 mi (5,837.14 km) |
| Lake Monticello to Palmela | 3,671.64 mi (5,908.93 km) |
| Lake Monticello to Paredes | 3,631.91 mi (5,845.00 km) |
| Lake Monticello to Paredes de Coura | 3,603.44 mi (5,799.17 km) |
| Lake Monticello to Penacova | 3,657.73 mi (5,886.54 km) |
| Lake Monticello to Penafiel | 3,634.16 mi (5,848.61 km) |
| Lake Monticello to Peniche | 3,627.94 mi (5,838.60 km) |
| Lake Monticello to Peso da Regua | 3,659.79 mi (5,889.86 km) |
| Lake Monticello to Pinhal Novo | 3,669.23 mi (5,905.06 km) |
| Lake Monticello to Pinhel | 3,703.92 mi (5,960.88 km) |
