| North Tonawanda to Collegno | 4,074.97 mi (6,558.03 km) |
| North Tonawanda to Cologno al Serio | 4,144.01 mi (6,669.14 km) |
| North Tonawanda to Cologno Monzese | 4,128.80 mi (6,644.66 km) |
| North Tonawanda to Colorno | 4,196.27 mi (6,753.24 km) |
| North Tonawanda to Comacchio | 4,278.67 mi (6,885.85 km) |
| North Tonawanda to Comiso | 4,696.65 mi (7,558.52 km) |
| North Tonawanda to Como | 4,110.59 mi (6,615.35 km) |
| North Tonawanda to Concordia Sagittaria | 4,264.32 mi (6,862.75 km) |
| North Tonawanda to Concorezzo | 4,128.90 mi (6,644.83 km) |
| North Tonawanda to Conegliano | 4,237.59 mi (6,819.74 km) |
| North Tonawanda to Conselice | 4,271.49 mi (6,874.31 km) |
| North Tonawanda to Conselve | 4,245.27 mi (6,832.10 km) |
| North Tonawanda to Conversano | 4,632.40 mi (7,455.12 km) |
| North Tonawanda to Copertino | 4,700.77 mi (7,565.17 km) |
| North Tonawanda to Copparo | 4,256.72 mi (6,850.52 km) |
