| Merrillville to Oliveira de Frades | 3,964.68 mi (6,380.53 km) |
| Merrillville to Oliveira do Bairro | 3,956.89 mi (6,367.99 km) |
| Merrillville to Oliveira do Hospital | 3,991.46 mi (6,423.64 km) |
| Merrillville to Ourem | 3,983.14 mi (6,410.25 km) |
| Merrillville to Ovar | 3,939.06 mi (6,339.31 km) |
| Merrillville to Pacos de Ferreira | 3,936.41 mi (6,335.04 km) |
| Merrillville to Palmela | 4,004.81 mi (6,445.12 km) |
| Merrillville to Paredes | 3,941.67 mi (6,343.50 km) |
| Merrillville to Paredes de Coura | 3,907.75 mi (6,288.92 km) |
| Merrillville to Penacova | 3,975.14 mi (6,397.37 km) |
| Merrillville to Penafiel | 3,943.71 mi (6,346.79 km) |
| Merrillville to Peniche | 3,956.21 mi (6,366.91 km) |
| Merrillville to Peso da Regua | 3,968.17 mi (6,386.16 km) |
| Merrillville to Pinhal Novo | 4,001.94 mi (6,440.50 km) |
| Merrillville to Pinhel | 4,013.38 mi (6,458.90 km) |
