| Riverdale to Benavente | 4,105.77 mi (6,607.59 km) |
| Riverdale to Bombarral | 4,080.70 mi (6,567.25 km) |
| Riverdale to Bougado | 4,062.37 mi (6,537.76 km) |
| Riverdale to Braga | 4,064.35 mi (6,540.93 km) |
| Riverdale to Braganca | 4,139.27 mi (6,661.51 km) |
| Riverdale to Cabeceiras de Basto | 4,084.43 mi (6,573.25 km) |
| Riverdale to Cacem | 4,084.84 mi (6,573.91 km) |
| Riverdale to Cadaval | 4,084.31 mi (6,573.05 km) |
| Riverdale to Caldas da Rainha | 4,078.39 mi (6,563.54 km) |
| Riverdale to Calheta | 3,817.21 mi (6,143.20 km) |
| Riverdale to Camara de Lobos | 3,828.16 mi (6,160.82 km) |
| Riverdale to Canico | 3,836.43 mi (6,174.14 km) |
| Riverdale to Cantanhede | 4,083.41 mi (6,571.61 km) |
| Riverdale to Carregal do Sal | 4,110.78 mi (6,615.66 km) |
| Riverdale to Cartaxo | 4,102.21 mi (6,601.87 km) |
