| Ianca to Oliveira de Frades | 1,814.52 mi (2,920.19 km) |
| Ianca to Oliveira do Bairro | 1,835.08 mi (2,953.28 km) |
| Ianca to Oliveira do Hospital | 1,808.15 mi (2,909.94 km) |
| Ianca to Ourem | 1,861.59 mi (2,995.94 km) |
| Ianca to Ovar | 1,832.61 mi (2,949.30 km) |
| Ianca to Pacos de Ferreira | 1,811.35 mi (2,915.08 km) |
| Ianca to Palmela | 1,909.01 mi (3,072.25 km) |
| Ianca to Paredes | 1,809.74 mi (2,912.49 km) |
| Ianca to Paredes de Coura | 1,803.93 mi (2,903.15 km) |
| Ianca to Penacova | 1,830.98 mi (2,946.67 km) |
| Ianca to Penafiel | 1,807.19 mi (2,908.39 km) |
| Ianca to Peniche | 1,908.98 mi (3,072.21 km) |
| Ianca to Peso da Regua | 1,783.51 mi (2,870.28 km) |
| Ianca to Pinhal Novo | 1,907.77 mi (3,070.27 km) |
| Ianca to Pinhel | 1,758.47 mi (2,829.98 km) |
