| Flensburg to Cassino | 939.34 mi (1,511.72 km) |
| Flensburg to Castagneto Carducci | 804.24 mi (1,294.29 km) |
| Flensburg to Castano Primo | 638.54 mi (1,027.64 km) |
| Flensburg to Castel Bolognese | 730.68 mi (1,175.92 km) |
| Flensburg to Castel Gandolfo | 912.44 mi (1,468.43 km) |
| Flensburg to Castel Goffredo | 656.87 mi (1,057.12 km) |
| Flensburg to Castel Maggiore | 710.99 mi (1,144.22 km) |
| Flensburg to Castel Mella | 642.09 mi (1,033.34 km) |
| Flensburg to Castel San Giorgio | 996.89 mi (1,604.35 km) |
| Flensburg to Castel San Giovanni | 672.41 mi (1,082.14 km) |
| Flensburg to Castel San Pietro Terme | 723.64 mi (1,164.59 km) |
| Flensburg to Castel Volturno | 970.69 mi (1,562.18 km) |
| Flensburg to Castelbuono | 1,184.52 mi (1,906.30 km) |
| Flensburg to Casteldaccia | 1,171.91 mi (1,886.01 km) |
| Flensburg to Castelfidardo | 803.40 mi (1,292.94 km) |
