| Effingham to Popovo | 5,434.90 mi (8,746.63 km) |
| Effingham to Provadia | 5,486.07 mi (8,828.98 km) |
| Effingham to Radnevo | 5,474.44 mi (8,810.25 km) |
| Effingham to Radomir | 5,351.67 mi (8,612.68 km) |
| Effingham to Rakitovo | 5,420.81 mi (8,723.96 km) |
| Effingham to Rakovski | 5,439.28 mi (8,753.67 km) |
| Effingham to Razgrad | 5,436.28 mi (8,748.85 km) |
| Effingham to Razlog | 5,402.29 mi (8,694.14 km) |
| Effingham to Ruse | 5,402.15 mi (8,693.92 km) |
| Effingham to Samokov | 5,384.37 mi (8,665.30 km) |
| Effingham to Sandanski | 5,410.06 mi (8,706.65 km) |
| Effingham to Sevlievo | 5,409.67 mi (8,706.02 km) |
| Effingham to Shumen | 5,463.31 mi (8,792.35 km) |
| Effingham to Silistra | 5,434.55 mi (8,746.07 km) |
| Effingham to Sliven | 5,470.62 mi (8,804.11 km) |
