| Antrim to Cascais | 1,116.80 mi (1,797.31 km) |
| Antrim to Castelo Branco | 1,031.27 mi (1,659.67 km) |
| Antrim to Castro Daire | 957.97 mi (1,541.70 km) |
| Antrim to Celorico de Basto | 924.93 mi (1,488.53 km) |
| Antrim to Chamusca | 1,067.04 mi (1,717.23 km) |
| Antrim to Chaves | 898.46 mi (1,445.92 km) |
| Antrim to Cinfaes | 945.00 mi (1,520.83 km) |
| Antrim to Coimbra | 1,007.52 mi (1,621.44 km) |
| Antrim to Condeixa-a-Nova | 1,014.35 mi (1,632.44 km) |
| Antrim to Corroios | 1,121.06 mi (1,804.17 km) |
| Antrim to Coruche | 1,094.30 mi (1,761.10 km) |
| Antrim to Costa de Caparica | 1,119.50 mi (1,801.66 km) |
| Antrim to Covilha | 999.08 mi (1,607.86 km) |
| Antrim to Eiras | 1,005.36 mi (1,617.97 km) |
| Antrim to Elvas | 1,096.06 mi (1,763.93 km) |
