| Hartford to Butzbach | 3,744.70 mi (6,026.52 km) |
| Hartford to Buxtehude | 3,700.00 mi (5,954.57 km) |
| Hartford to Cadolzburg | 3,862.54 mi (6,216.15 km) |
| Hartford to Calbe | 3,824.00 mi (6,154.13 km) |
| Hartford to Calw | 3,798.16 mi (6,112.54 km) |
| Hartford to Castrop-Rauxel | 3,660.09 mi (5,890.35 km) |
| Hartford to Celle | 3,738.07 mi (6,015.85 km) |
| Hartford to Cham | 3,941.37 mi (6,343.02 km) |
| Hartford to Chemnitz | 3,900.78 mi (6,277.69 km) |
| Hartford to Clausthal-Zellerfeld | 3,771.22 mi (6,069.20 km) |
| Hartford to Cloppenburg | 3,653.86 mi (5,880.31 km) |
| Hartford to Coburg | 3,841.55 mi (6,182.39 km) |
| Hartford to Coesfeld | 3,643.44 mi (5,863.55 km) |
| Hartford to Cologne | 3,662.30 mi (5,893.91 km) |
| Hartford to Coswig | 3,917.23 mi (6,304.17 km) |
