| West Springfield to Popovo | 5,020.64 mi (8,079.93 km) |
| West Springfield to Provadia | 5,075.42 mi (8,168.09 km) |
| West Springfield to Radnevo | 5,052.70 mi (8,131.53 km) |
| West Springfield to Radomir | 4,920.36 mi (7,918.55 km) |
| West Springfield to Rakitovo | 4,990.24 mi (8,031.02 km) |
| West Springfield to Rakovski | 5,013.81 mi (8,068.95 km) |
| West Springfield to Razgrad | 5,024.22 mi (8,085.69 km) |
| West Springfield to Razlog | 4,968.86 mi (7,996.60 km) |
| West Springfield to Ruse | 4,989.71 mi (8,030.16 km) |
| West Springfield to Samokov | 4,953.97 mi (7,972.65 km) |
| West Springfield to Sandanski | 4,974.09 mi (8,005.02 km) |
| West Springfield to Sevlievo | 4,989.20 mi (8,029.34 km) |
| West Springfield to Shumen | 5,051.32 mi (8,129.32 km) |
| West Springfield to Silistra | 5,028.92 mi (8,093.27 km) |
| West Springfield to Sliven | 5,052.70 mi (8,131.54 km) |
