| Owings Mills to Cognac | 3,765.73 mi (6,060.35 km) |
| Owings Mills to Cogolin | 4,143.41 mi (6,668.18 km) |
| Owings Mills to Colmar | 4,030.08 mi (6,485.79 km) |
| Owings Mills to Colombes | 3,792.84 mi (6,103.98 km) |
| Owings Mills to Colomiers | 3,898.64 mi (6,274.25 km) |
| Owings Mills to Combs-la-Ville | 3,812.42 mi (6,135.50 km) |
| Owings Mills to Comines | 3,777.35 mi (6,079.06 km) |
| Owings Mills to Compiegne | 3,804.03 mi (6,121.99 km) |
| Owings Mills to Concarneau | 3,553.30 mi (5,718.49 km) |
| Owings Mills to Conde-sur-l'Escaut | 3,809.03 mi (6,130.05 km) |
| Owings Mills to Conflans-Sainte-Honorine | 3,784.41 mi (6,090.42 km) |
| Owings Mills to Corbas | 3,997.04 mi (6,432.62 km) |
| Owings Mills to Corbeil-Essonnes | 3,810.60 mi (6,132.57 km) |
| Owings Mills to Cormeilles-en-Parisis | 3,789.40 mi (6,098.45 km) |
| Owings Mills to Cosne sur Loire | 3,861.76 mi (6,214.89 km) |
