| Sammamish to Collegno | 5,343.16 mi (8,598.99 km) |
| Sammamish to Cologno al Serio | 5,367.52 mi (8,638.18 km) |
| Sammamish to Cologno Monzese | 5,360.21 mi (8,626.42 km) |
| Sammamish to Colorno | 5,423.10 mi (8,727.64 km) |
| Sammamish to Comacchio | 5,481.16 mi (8,821.08 km) |
| Sammamish to Comiso | 6,011.97 mi (9,675.33 km) |
| Sammamish to Como | 5,338.76 mi (8,591.90 km) |
| Sammamish to Concordia Sagittaria | 5,432.77 mi (8,743.20 km) |
| Sammamish to Concorezzo | 5,358.04 mi (8,622.94 km) |
| Sammamish to Conegliano | 5,412.51 mi (8,710.59 km) |
| Sammamish to Conselice | 5,483.69 mi (8,825.15 km) |
| Sammamish to Conselve | 5,441.48 mi (8,757.21 km) |
| Sammamish to Conversano | 5,825.91 mi (9,375.89 km) |
| Sammamish to Copertino | 5,890.84 mi (9,480.39 km) |
| Sammamish to Copparo | 5,460.68 mi (8,788.11 km) |
