| Ottumwa to Cognac | 4,368.49 mi (7,030.40 km) |
| Ottumwa to Cogolin | 4,742.51 mi (7,632.33 km) |
| Ottumwa to Colmar | 4,577.23 mi (7,366.34 km) |
| Ottumwa to Colombes | 4,351.13 mi (7,002.46 km) |
| Ottumwa to Colomiers | 4,515.80 mi (7,267.48 km) |
| Ottumwa to Combs-la-Ville | 4,372.37 mi (7,036.64 km) |
| Ottumwa to Comines | 4,311.88 mi (6,939.30 km) |
| Ottumwa to Compiegne | 4,354.66 mi (7,008.14 km) |
| Ottumwa to Concarneau | 4,145.46 mi (6,671.47 km) |
| Ottumwa to Conde-sur-l'Escaut | 4,344.99 mi (6,992.59 km) |
| Ottumwa to Conflans-Sainte-Honorine | 4,342.43 mi (6,988.47 km) |
| Ottumwa to Corbas | 4,579.43 mi (7,369.88 km) |
| Ottumwa to Corbeil-Essonnes | 4,371.46 mi (7,035.19 km) |
| Ottumwa to Cormeilles-en-Parisis | 4,347.32 mi (6,996.34 km) |
| Ottumwa to Cosne sur Loire | 4,433.99 mi (7,135.81 km) |
