| Riverdale to Santarem | 4,105.08 mi (6,606.49 km) |
| Riverdale to Santiago do Cacem | 4,133.98 mi (6,652.99 km) |
| Riverdale to Santo Andre | 4,130.61 mi (6,647.58 km) |
| Riverdale to Santo Tirso | 4,066.98 mi (6,545.17 km) |
| Riverdale to Sao Bras de Alportel | 4,197.42 mi (6,755.10 km) |
| Riverdale to Sao Felix da Marinha | 4,066.12 mi (6,543.79 km) |
| Riverdale to Sao Joao da Madeira | 4,075.86 mi (6,559.46 km) |
| Riverdale to Sao Joao de Ver | 4,071.50 mi (6,552.44 km) |
| Riverdale to Sao Mamede de Infesta | 4,063.47 mi (6,539.53 km) |
| Riverdale to Sao Pedro do Sul | 4,100.06 mi (6,598.42 km) |
| Riverdale to Satao | 4,116.87 mi (6,625.47 km) |
| Riverdale to Seia | 4,125.76 mi (6,639.76 km) |
| Riverdale to Senhora da Hora | 4,061.29 mi (6,536.01 km) |
| Riverdale to Serpa | 4,191.68 mi (6,745.86 km) |
| Riverdale to Serta | 4,120.85 mi (6,631.87 km) |
