| Oklahoma City to Castelletto sopra Ticino | 5,188.42 mi (8,349.96 km) |
| Oklahoma City to Castelli Calepio | 5,241.10 mi (8,434.73 km) |
| Oklahoma City to Castelnovo ne' Monti | 5,310.49 mi (8,546.41 km) |
| Oklahoma City to Castelnuovo Berardenga | 5,399.88 mi (8,690.27 km) |
| Oklahoma City to Castelnuovo di Porto | 5,491.64 mi (8,837.95 km) |
| Oklahoma City to Castelnuovo di Verona | 5,282.91 mi (8,502.02 km) |
| Oklahoma City to Castelnuovo Rangone | 5,326.47 mi (8,572.13 km) |
| Oklahoma City to Castelvetrano | 5,698.26 mi (9,170.46 km) |
| Oklahoma City to Castelvetro di Modena | 5,329.23 mi (8,576.57 km) |
| Oklahoma City to Castenaso | 5,349.10 mi (8,608.55 km) |
| Oklahoma City to Castenedolo | 5,263.20 mi (8,470.31 km) |
| Oklahoma City to Castiglion Fiorentino | 5,416.39 mi (8,716.84 km) |
| Oklahoma City to Castiglione del Lago | 5,430.29 mi (8,739.20 km) |
| Oklahoma City to Castiglione delle Stiviere | 5,274.00 mi (8,487.68 km) |
| Oklahoma City to Castrolibero | 5,765.15 mi (9,278.12 km) |
