| Tulcea to Security-Widefield (Colorado) | 5,958.50 mi (9,589.28 km) |
| Tulcea to Sedalia (Missouri) | 5,614.65 mi (9,035.91 km) |
| Tulcea to Sedro-Woolley (Washington) | 5,730.38 mi (9,222.15 km) |
| Tulcea to Seguin (Texas) | 6,283.82 mi (10,112.83 km) |
| Tulcea to Selden (New York) | 4,782.42 mi (7,696.57 km) |
| Tulcea to Selma (Alabama) | 5,737.95 mi (9,234.34 km) |
| Tulcea to Selma (California) | 6,453.87 mi (10,386.49 km) |
| Tulcea to Selma (Texas) | 6,295.66 mi (10,131.89 km) |
| Tulcea to Seminole (Florida) | 5,813.45 mi (9,355.85 km) |
| Tulcea to Seven Hills (Ohio) | 5,078.34 mi (8,172.80 km) |
| Tulcea to Seven Oaks (South Carolina) | 5,429.24 mi (8,737.52 km) |
| Tulcea to Severn (Maryland) | 5,005.02 mi (8,054.81 km) |
| Tulcea to Severna Park (Maryland) | 5,002.53 mi (8,050.79 km) |
| Tulcea to Sevierville (Tennessee) | 5,426.98 mi (8,733.88 km) |
| Tulcea to Seymour (Indiana) | 5,352.43 mi (8,613.90 km) |
