| Oulu to Cay | 1,839.30 mi (2,960.07 km) |
| Oulu to Caybasi | 1,719.50 mi (2,767.27 km) |
| Oulu to Caycuma | 1,650.40 mi (2,656.07 km) |
| Oulu to Cayeli | 1,759.38 mi (2,831.46 km) |
| Oulu to Cayiralan | 1,822.66 mi (2,933.28 km) |
| Oulu to Cayirhan | 1,739.14 mi (2,798.88 km) |
| Oulu to Cayirli | 1,836.28 mi (2,955.20 km) |
| Oulu to Cayirova | 1,678.35 mi (2,701.05 km) |
| Oulu to Caykara | 1,775.78 mi (2,857.84 km) |
| Oulu to Cekerek | 1,769.01 mi (2,846.94 km) |
| Oulu to Cekme | 1,663.15 mi (2,676.58 km) |
| Oulu to Celtik | 1,813.65 mi (2,918.78 km) |
| Oulu to Cerkes | 1,697.74 mi (2,732.25 km) |
| Oulu to Cerkezkoy | 1,642.68 mi (2,643.64 km) |
| Oulu to Cermik | 1,941.41 mi (3,124.40 km) |
