| Bostonia to Cehegin | 6,007.33 mi (9,667.87 km) |
| Bostonia to Cervello | 6,005.88 mi (9,665.53 km) |
| Bostonia to Cervera | 5,967.04 mi (9,603.02 km) |
| Bostonia to Ceuti | 6,029.71 mi (9,703.89 km) |
| Bostonia to Cheste | 5,990.38 mi (9,640.58 km) |
| Bostonia to Chiclana de la Frontera | 5,894.91 mi (9,486.95 km) |
| Bostonia to Chipiona | 5,869.07 mi (9,445.36 km) |
| Bostonia to Chiva | 5,989.33 mi (9,638.90 km) |
| Bostonia to Churriana de la Vega | 5,971.30 mi (9,609.88 km) |
| Bostonia to Ciempozuelos | 5,841.03 mi (9,400.23 km) |
| Bostonia to Cieza | 6,016.45 mi (9,682.54 km) |
| Bostonia to Cisterniga | 5,734.58 mi (9,228.91 km) |
| Bostonia to Ciudad de Melilla | 6,083.69 mi (9,790.76 km) |
| Bostonia to Ciudad Real | 5,879.98 mi (9,462.91 km) |
| Bostonia to Ciudad-Rodrigo | 5,701.63 mi (9,175.88 km) |
