| Mersin to Oliveira de Frades | 2,299.83 mi (3,701.22 km) |
| Mersin to Oliveira do Bairro | 2,318.13 mi (3,730.67 km) |
| Mersin to Oliveira do Hospital | 2,286.41 mi (3,679.62 km) |
| Mersin to Ourem | 2,330.51 mi (3,750.59 km) |
| Mersin to Ovar | 2,321.83 mi (3,736.63 km) |
| Mersin to Pacos de Ferreira | 2,306.37 mi (3,711.75 km) |
| Mersin to Palmela | 2,361.18 mi (3,799.96 km) |
| Mersin to Paredes | 2,303.47 mi (3,707.08 km) |
| Mersin to Paredes de Coura | 2,309.84 mi (3,717.33 km) |
| Mersin to Penacova | 2,309.21 mi (3,716.31 km) |
| Mersin to Penafiel | 2,300.88 mi (3,702.91 km) |
| Mersin to Peniche | 2,376.02 mi (3,823.83 km) |
| Mersin to Peso da Regua | 2,274.99 mi (3,661.23 km) |
| Mersin to Pinhal Novo | 2,361.09 mi (3,799.80 km) |
| Mersin to Pinhel | 2,241.26 mi (3,606.96 km) |
