| Suwalki to Castelo Branco | 1,720.33 mi (2,768.60 km) |
| Suwalki to Castro Daire | 1,684.52 mi (2,710.97 km) |
| Suwalki to Celorico de Basto | 1,664.37 mi (2,678.54 km) |
| Suwalki to Chamusca | 1,780.09 mi (2,864.78 km) |
| Suwalki to Chaves | 1,627.54 mi (2,619.27 km) |
| Suwalki to Cinfaes | 1,682.71 mi (2,708.07 km) |
| Suwalki to Coimbra | 1,736.21 mi (2,794.15 km) |
| Suwalki to Condeixa-a-Nova | 1,743.43 mi (2,805.78 km) |
| Suwalki to Corroios | 1,841.49 mi (2,963.59 km) |
| Suwalki to Coruche | 1,801.13 mi (2,898.64 km) |
| Suwalki to Costa de Caparica | 1,843.18 mi (2,966.32 km) |
| Suwalki to Covilha | 1,697.62 mi (2,732.05 km) |
| Suwalki to Eiras | 1,734.52 mi (2,791.44 km) |
| Suwalki to Elvas | 1,754.49 mi (2,823.58 km) |
| Suwalki to Entroncamento | 1,773.87 mi (2,854.76 km) |
