| Des Plaines to Popovo | 5,263.82 mi (8,471.30 km) |
| Des Plaines to Provadia | 5,314.00 mi (8,552.05 km) |
| Des Plaines to Radnevo | 5,305.17 mi (8,537.84 km) |
| Des Plaines to Radomir | 5,185.21 mi (8,344.80 km) |
| Des Plaines to Rakitovo | 5,254.00 mi (8,455.50 km) |
| Des Plaines to Rakovski | 5,271.06 mi (8,482.95 km) |
| Des Plaines to Razgrad | 5,264.66 mi (8,472.64 km) |
| Des Plaines to Razlog | 5,236.30 mi (8,427.02 km) |
| Des Plaines to Ruse | 5,230.68 mi (8,417.97 km) |
| Des Plaines to Samokov | 5,217.59 mi (8,396.90 km) |
| Des Plaines to Sandanski | 5,244.77 mi (8,440.64 km) |
| Des Plaines to Sevlievo | 5,240.21 mi (8,433.31 km) |
| Des Plaines to Shumen | 5,291.61 mi (8,516.02 km) |
| Des Plaines to Silistra | 5,261.38 mi (8,467.37 km) |
| Des Plaines to Sliven | 5,300.38 mi (8,530.13 km) |
