| Niagara Falls to Campo de Criptana | 3,811.99 mi (6,134.80 km) |
| Niagara Falls to Campos del Puerto | 4,090.15 mi (6,582.46 km) |
| Niagara Falls to Canals | 3,943.86 mi (6,347.04 km) |
| Niagara Falls to Candelaria | 3,572.18 mi (5,748.87 km) |
| Niagara Falls to Canet de Mar | 3,991.59 mi (6,423.84 km) |
| Niagara Falls to Cangas | 3,457.49 mi (5,564.30 km) |
| Niagara Falls to Cangas de Narcea | 3,531.59 mi (5,683.55 km) |
| Niagara Falls to Canovellas | 3,977.33 mi (6,400.89 km) |
| Niagara Falls to Canteras | 3,971.88 mi (6,392.12 km) |
| Niagara Falls to Cantillana | 3,749.14 mi (6,033.65 km) |
| Niagara Falls to Capdepera | 4,098.66 mi (6,596.16 km) |
| Niagara Falls to Carballo | 3,433.19 mi (5,525.19 km) |
| Niagara Falls to Carcagente | 3,944.27 mi (6,347.69 km) |
| Niagara Falls to Cardedeu | 3,979.95 mi (6,405.11 km) |
| Niagara Falls to Carlet | 3,937.21 mi (6,336.34 km) |
