| Springfield to Popovo | 4,683.48 mi (7,537.34 km) |
| Springfield to Provadia | 4,738.17 mi (7,625.34 km) |
| Springfield to Radnevo | 4,715.85 mi (7,589.43 km) |
| Springfield to Radomir | 4,584.02 mi (7,377.26 km) |
| Springfield to Rakitovo | 4,653.88 mi (7,489.69 km) |
| Springfield to Rakovski | 4,677.15 mi (7,527.14 km) |
| Springfield to Razgrad | 4,686.99 mi (7,542.99 km) |
| Springfield to Razlog | 4,632.68 mi (7,455.58 km) |
| Springfield to Ruse | 4,652.49 mi (7,487.47 km) |
| Springfield to Samokov | 4,617.58 mi (7,431.28 km) |
| Springfield to Sandanski | 4,638.10 mi (7,464.30 km) |
| Springfield to Sevlievo | 4,652.28 mi (7,487.12 km) |
| Springfield to Shumen | 4,714.10 mi (7,586.62 km) |
| Springfield to Silistra | 4,691.55 mi (7,550.32 km) |
| Springfield to Sliven | 4,715.69 mi (7,589.17 km) |
