| Echelon to Cascais | 3,425.84 mi (5,513.36 km) |
| Echelon to Castelo Branco | 3,489.57 mi (5,615.93 km) |
| Echelon to Castro Daire | 3,439.65 mi (5,535.57 km) |
| Echelon to Celorico de Basto | 3,423.93 mi (5,510.28 km) |
| Echelon to Chamusca | 3,454.14 mi (5,558.90 km) |
| Echelon to Chaves | 3,440.16 mi (5,536.40 km) |
| Echelon to Cinfaes | 3,424.79 mi (5,511.66 km) |
| Echelon to Coimbra | 3,433.68 mi (5,525.97 km) |
| Echelon to Condeixa-a-Nova | 3,432.73 mi (5,524.44 km) |
| Echelon to Corroios | 3,441.35 mi (5,538.31 km) |
| Echelon to Coruche | 3,462.75 mi (5,572.75 km) |
| Echelon to Costa de Caparica | 3,436.33 mi (5,530.23 km) |
| Echelon to Covilha | 3,476.97 mi (5,595.63 km) |
| Echelon to Eiras | 3,433.11 mi (5,525.06 km) |
| Echelon to Elvas | 3,533.01 mi (5,685.83 km) |
