| Omagh to Coudekerque-Branche | 472.87 mi (761.01 km) |
| Omagh to Coueron | 563.90 mi (907.50 km) |
| Omagh to Coulommiers | 595.98 mi (959.13 km) |
| Omagh to Courbevoic | 565.97 mi (910.84 km) |
| Omagh to Courcouronnes | 585.41 mi (942.12 km) |
| Omagh to Cournon-d'Auvergne | 765.85 mi (1,232.51 km) |
| Omagh to Courrieres | 515.66 mi (829.88 km) |
| Omagh to Coutras | 732.08 mi (1,178.16 km) |
| Omagh to Couzeix | 709.19 mi (1,141.34 km) |
| Omagh to Cran-Gevrier | 840.18 mi (1,352.14 km) |
| Omagh to Craponne | 807.80 mi (1,300.03 km) |
| Omagh to Creil | 555.10 mi (893.34 km) |
| Omagh to Crepy-en-Valois | 569.19 mi (916.03 km) |
| Omagh to Crest | 873.49 mi (1,405.74 km) |
| Omagh to Creteil | 577.84 mi (929.95 km) |
