| Seaham to Chantilly (Virginia) | 3,566.55 mi (5,739.81 km) |
| Seaham to Chaparral (New Mexico) | 4,983.57 mi (8,020.28 km) |
| Seaham to Chapel Hill (North Carolina) | 3,773.64 mi (6,073.08 km) |
| Seaham to Charleston (Illinois) | 3,939.61 mi (6,340.19 km) |
| Seaham to Charleston (South Carolina) | 3,967.26 mi (6,384.68 km) |
| Seaham to Charleston (West Virginia) | 3,752.48 mi (6,039.04 km) |
| Seaham to Charlotte (North Carolina) | 3,878.83 mi (6,242.37 km) |
| Seaham to Charlottesville (Virginia) | 3,647.83 mi (5,870.62 km) |
| Seaham to Chaska (Minnesota) | 3,865.06 mi (6,220.22 km) |
| Seaham to Chatham (Illinois) | 3,985.21 mi (6,413.58 km) |
| Seaham to Chattanooga (Tennessee) | 4,054.86 mi (6,525.67 km) |
| Seaham to Cheat Lake (West Virginia) | 3,620.66 mi (5,826.88 km) |
| Seaham to Chelsea (Alabama) | 4,197.18 mi (6,754.71 km) |
| Seaham to Chelsea (Massachusetts) | 3,155.29 mi (5,077.95 km) |
| Seaham to Cheney (Washington) | 4,456.01 mi (7,171.25 km) |
