| Oklahoma City to Celbridge | 4,338.69 mi (6,982.45 km) |
| Oklahoma City to Clondalkin | 4,344.62 mi (6,992.00 km) |
| Oklahoma City to Clonmel | 4,320.98 mi (6,953.95 km) |
| Oklahoma City to Cobh | 4,311.93 mi (6,939.38 km) |
| Oklahoma City to Cork | 4,303.88 mi (6,926.42 km) |
| Oklahoma City to Donegal | 4,244.58 mi (6,830.99 km) |
| Oklahoma City to Douglas | 4,305.78 mi (6,929.49 km) |
| Oklahoma City to Drogheda | 4,335.24 mi (6,976.89 km) |
| Oklahoma City to Dublin | 4,348.87 mi (6,998.82 km) |
| Oklahoma City to Dun Dealgan | 4,325.16 mi (6,960.67 km) |
| Oklahoma City to Ennis | 4,258.70 mi (6,853.71 km) |
| Oklahoma City to Enniscorthy | 4,361.05 mi (7,018.43 km) |
| Oklahoma City to Finglas | 4,347.39 mi (6,996.44 km) |
| Oklahoma City to Galway | 4,244.98 mi (6,831.64 km) |
| Oklahoma City to Glanmire | 4,306.09 mi (6,929.98 km) |
