| Harker Heights to Chivasso | 5,403.71 mi (8,696.42 km) |
| Harker Heights to Ciampino | 5,730.71 mi (9,222.68 km) |
| Harker Heights to Cicciano | 5,845.51 mi (9,407.43 km) |
| Harker Heights to Cingoli | 5,692.41 mi (9,161.05 km) |
| Harker Heights to Cinisello Balsamo | 5,444.40 mi (8,761.92 km) |
| Harker Heights to Cinisi | 5,900.42 mi (9,495.81 km) |
| Harker Heights to Cirie | 5,390.28 mi (8,674.81 km) |
| Harker Heights to Ciro Marina | 6,021.38 mi (9,690.48 km) |
| Harker Heights to Cislago | 5,430.51 mi (8,739.56 km) |
| Harker Heights to Cisterna di Latina | 5,748.73 mi (9,251.69 km) |
| Harker Heights to Cisternino | 5,974.76 mi (9,615.44 km) |
| Harker Heights to Citta di Castello | 5,649.02 mi (9,091.22 km) |
| Harker Heights to Citta Sant'Angelo | 5,761.20 mi (9,271.76 km) |
| Harker Heights to Cittadella | 5,543.24 mi (8,920.98 km) |
| Harker Heights to Cittanova | 6,021.34 mi (9,690.40 km) |
