| Iowa City to Cavaillon | 4,594.90 mi (7,394.78 km) |
| Iowa City to Cebazat | 4,438.01 mi (7,142.28 km) |
| Iowa City to Cenon | 4,327.98 mi (6,965.22 km) |
| Iowa City to Cergy | 4,276.05 mi (6,881.63 km) |
| Iowa City to Cernay | 4,517.86 mi (7,270.79 km) |
| Iowa City to Cesson | 4,314.16 mi (6,942.98 km) |
| Iowa City to Cesson-Sevigne | 4,166.09 mi (6,704.68 km) |
| Iowa City to Cestas | 4,326.01 mi (6,962.05 km) |
| Iowa City to Chalette-sur-Loing | 4,340.19 mi (6,984.86 km) |
| Iowa City to Challans | 4,200.30 mi (6,759.73 km) |
| Iowa City to Chalon-sur-Saone | 4,469.82 mi (7,193.48 km) |
| Iowa City to Chalons-en-Champagne | 4,366.56 mi (7,027.29 km) |
| Iowa City to Chamalieres | 4,438.93 mi (7,143.77 km) |
| Iowa City to Chambery | 4,559.50 mi (7,337.80 km) |
| Iowa City to Chambly | 4,278.30 mi (6,885.25 km) |
