| Arlington Heights to Popovo | 5,263.61 mi (8,470.96 km) |
| Arlington Heights to Provadia | 5,313.73 mi (8,551.62 km) |
| Arlington Heights to Radnevo | 5,305.05 mi (8,537.65 km) |
| Arlington Heights to Radomir | 5,185.25 mi (8,344.85 km) |
| Arlington Heights to Rakitovo | 5,254.01 mi (8,455.52 km) |
| Arlington Heights to Rakovski | 5,271.00 mi (8,482.85 km) |
| Arlington Heights to Razgrad | 5,264.42 mi (8,472.26 km) |
| Arlington Heights to Razlog | 5,236.36 mi (8,427.10 km) |
| Arlington Heights to Ruse | 5,230.45 mi (8,417.60 km) |
| Arlington Heights to Samokov | 5,217.60 mi (8,396.92 km) |
| Arlington Heights to Sandanski | 5,244.86 mi (8,440.78 km) |
| Arlington Heights to Sevlievo | 5,240.09 mi (8,433.11 km) |
| Arlington Heights to Shumen | 5,291.36 mi (8,515.62 km) |
| Arlington Heights to Silistra | 5,261.05 mi (8,466.84 km) |
| Arlington Heights to Sliven | 5,300.21 mi (8,529.86 km) |
