| Johnston to Cabestany | 4,644.59 mi (7,474.75 km) |
| Johnston to Cabries | 4,711.36 mi (7,582.20 km) |
| Johnston to Cachan | 4,377.31 mi (7,044.59 km) |
| Johnston to Caen | 4,259.93 mi (6,855.70 km) |
| Johnston to Cagnes-sur-Mer | 4,771.86 mi (7,679.57 km) |
| Johnston to Cahors | 4,512.23 mi (7,261.73 km) |
| Johnston to Calais | 4,277.98 mi (6,884.74 km) |
| Johnston to Caluire-et-Cuire | 4,592.77 mi (7,391.35 km) |
| Johnston to Cambrai | 4,357.81 mi (7,013.22 km) |
| Johnston to Canet-en-Roussillon | 4,646.20 mi (7,477.33 km) |
| Johnston to Cannes | 4,771.35 mi (7,678.75 km) |
| Johnston to Canteleu | 4,303.33 mi (6,925.54 km) |
| Johnston to Capbreton | 4,426.15 mi (7,123.19 km) |
| Johnston to Carcassonne | 4,598.79 mi (7,401.04 km) |
| Johnston to Carmaux | 4,557.11 mi (7,333.97 km) |
