| Silves to Corinth (Mississippi) | 4,331.60 mi (6,971.04 km) |
| Silves to Corinth (Texas) | 4,818.01 mi (7,753.83 km) |
| Silves to Cornelius (North Carolina) | 3,929.67 mi (6,324.19 km) |
| Silves to Cornelius (Oregon) | 5,426.27 mi (8,732.74 km) |
| Silves to Corning (New York) | 3,566.26 mi (5,739.33 km) |
| Silves to Corona (California) | 5,742.11 mi (9,241.03 km) |
| Silves to Coronado (California) | 5,778.25 mi (9,299.19 km) |
| Silves to Corpus Christi (Texas) | 5,035.96 mi (8,104.59 km) |
| Silves to Corsicana (Texas) | 4,827.09 mi (7,768.44 km) |
| Silves to Cortland (New York) | 3,513.84 mi (5,654.98 km) |
| Silves to Corvallis (Oregon) | 5,478.73 mi (8,817.16 km) |
| Silves to Coshocton (Ohio) | 3,845.21 mi (6,188.27 km) |
| Silves to Costa Mesa (California) | 5,766.07 mi (9,279.59 km) |
| Silves to Coto de Caza (California) | 5,755.00 mi (9,261.78 km) |
| Silves to Cottage Grove (Minnesota) | 4,235.11 mi (6,815.75 km) |
