| Riverton to Oliveira de Frades | 5,067.89 mi (8,155.97 km) |
| Riverton to Oliveira do Bairro | 5,063.87 mi (8,149.51 km) |
| Riverton to Oliveira do Hospital | 5,096.64 mi (8,202.25 km) |
| Riverton to Ourem | 5,099.29 mi (8,206.51 km) |
| Riverton to Ovar | 5,043.12 mi (8,116.12 km) |
| Riverton to Pacos de Ferreira | 5,035.01 mi (8,103.06 km) |
| Riverton to Palmela | 5,133.32 mi (8,261.28 km) |
| Riverton to Paredes | 5,040.61 mi (8,112.07 km) |
| Riverton to Paredes de Coura | 5,000.28 mi (8,047.18 km) |
| Riverton to Penacova | 5,083.49 mi (8,181.09 km) |
| Riverton to Penafiel | 5,042.33 mi (8,114.84 km) |
| Riverton to Peniche | 5,079.54 mi (8,174.73 km) |
| Riverton to Peso da Regua | 5,064.47 mi (8,150.47 km) |
| Riverton to Pinhal Novo | 5,129.90 mi (8,255.78 km) |
| Riverton to Pinhel | 5,109.80 mi (8,223.42 km) |
