| Allentown to Cascais | 3,431.12 mi (5,521.86 km) |
| Allentown to Castelo Branco | 3,492.74 mi (5,621.02 km) |
| Allentown to Castro Daire | 3,441.68 mi (5,538.85 km) |
| Allentown to Celorico de Basto | 3,425.40 mi (5,512.64 km) |
| Allentown to Chamusca | 3,458.26 mi (5,565.53 km) |
| Allentown to Chaves | 3,440.99 mi (5,537.75 km) |
| Allentown to Cinfaes | 3,426.65 mi (5,514.67 km) |
| Allentown to Coimbra | 3,436.74 mi (5,530.90 km) |
| Allentown to Condeixa-a-Nova | 3,435.93 mi (5,529.59 km) |
| Allentown to Corroios | 3,446.62 mi (5,546.80 km) |
| Allentown to Coruche | 3,467.35 mi (5,580.16 km) |
| Allentown to Costa de Caparica | 3,441.60 mi (5,538.72 km) |
| Allentown to Covilha | 3,479.57 mi (5,599.83 km) |
| Allentown to Eiras | 3,436.13 mi (5,529.92 km) |
| Allentown to Elvas | 3,537.15 mi (5,692.50 km) |
