| Watertown Town to Popovo | 4,618.12 mi (7,432.15 km) |
| Watertown Town to Provadia | 4,673.03 mi (7,520.52 km) |
| Watertown Town to Radnevo | 4,649.96 mi (7,483.38 km) |
| Watertown Town to Radomir | 4,517.53 mi (7,270.26 km) |
| Watertown Town to Rakitovo | 4,587.41 mi (7,382.72 km) |
| Watertown Town to Rakovski | 4,611.01 mi (7,420.71 km) |
| Watertown Town to Razgrad | 4,621.79 mi (7,438.05 km) |
| Watertown Town to Razlog | 4,566.03 mi (7,348.31 km) |
| Watertown Town to Ruse | 4,587.28 mi (7,382.51 km) |
| Watertown Town to Samokov | 4,551.14 mi (7,324.36 km) |
| Watertown Town to Sandanski | 4,571.28 mi (7,356.76 km) |
| Watertown Town to Sevlievo | 4,586.50 mi (7,381.26 km) |
| Watertown Town to Shumen | 4,648.89 mi (7,481.66 km) |
| Watertown Town to Silistra | 4,626.80 mi (7,446.12 km) |
| Watertown Town to Sliven | 4,650.06 mi (7,483.54 km) |
