| Peoria to Popovo | 5,389.19 mi (8,673.07 km) |
| Peoria to Provadia | 5,439.31 mi (8,753.73 km) |
| Peoria to Radnevo | 5,430.61 mi (8,739.73 km) |
| Peoria to Radomir | 5,310.71 mi (8,546.76 km) |
| Peoria to Rakitovo | 5,379.50 mi (8,657.46 km) |
| Peoria to Rakovski | 5,396.53 mi (8,684.87 km) |
| Peoria to Razgrad | 5,390.00 mi (8,674.37 km) |
| Peoria to Razlog | 5,361.80 mi (8,628.98 km) |
| Peoria to Ruse | 5,356.03 mi (8,619.71 km) |
| Peoria to Samokov | 5,343.08 mi (8,598.86 km) |
| Peoria to Sandanski | 5,370.26 mi (8,642.60 km) |
| Peoria to Sevlievo | 5,365.65 mi (8,635.18 km) |
| Peoria to Shumen | 5,416.95 mi (8,717.73 km) |
| Peoria to Silistra | 5,386.62 mi (8,668.93 km) |
| Peoria to Sliven | 5,425.79 mi (8,731.96 km) |
