| Mattoon to Popovo | 5,409.89 mi (8,706.38 km) |
| Mattoon to Provadia | 5,460.98 mi (8,788.60 km) |
| Mattoon to Radnevo | 5,449.58 mi (8,770.25 km) |
| Mattoon to Radomir | 5,327.05 mi (8,573.05 km) |
| Mattoon to Rakitovo | 5,396.16 mi (8,684.28 km) |
| Mattoon to Rakovski | 5,414.50 mi (8,713.80 km) |
| Mattoon to Razgrad | 5,411.23 mi (8,708.53 km) |
| Mattoon to Razlog | 5,377.71 mi (8,654.58 km) |
| Mattoon to Ruse | 5,377.11 mi (8,653.61 km) |
| Mattoon to Samokov | 5,359.72 mi (8,625.63 km) |
| Mattoon to Sandanski | 5,385.54 mi (8,667.19 km) |
| Mattoon to Sevlievo | 5,384.79 mi (8,665.99 km) |
| Mattoon to Shumen | 5,438.25 mi (8,752.02 km) |
| Mattoon to Silistra | 5,409.38 mi (8,705.55 km) |
| Mattoon to Sliven | 5,445.68 mi (8,763.97 km) |
